NewLayout7.19.12 Bim Guide

User Manual:

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Page Count: 57

BIM Guideline
Table of Contents 1 of 4
Table of Contents 2 of 4
Table of Contents 3 of 4
Table of Contents 4 of 4
Message From The Commissioner
Part One General Information
Part Two BIM Use and Requirements
Part Three Submission and Deliverables
Part Four Glossary and Appendix

NEW YORK CITY

DEPARTMENT OF DESIGN + CONSTRUCTION

July 2012

Michael R. Bloomberg, Mayor

David J. Burney, FAIA, Commissioner

David Resnick, AIA, Deputy Commissioner

BIM

Guidelines

TABLE OF CONTENTS

Message From The Commissioner .......................................5

PART ONE GENERAL INFORMATION 6

DDC Public Buildings Division...........................................7

Building Information Modeling (BIM).....................................7

The Purpose of This Guide.............................................. 7

Public Buildings Lifecycle Vision.........................................7

Objectives ............................................................ 7

Software .............................................................. 7

Project Delivery Models (Design-Bid-Build; CM/Build; Design Assist) .......8

Model Ownership.......................................................9

BIM Roles and Responsibilities ..........................................9

BIM Manager. ..........................................................9

Discipline Trade BIM Coordinators ...................................... 10

BIM Execution Plan ................................................... 10

Description.................................................... 10

PART TWO BIM USE AND REQUIREMENTS 11

BIM Uses .............................................................11

Existing Conditions Modeling ....................................11

Laser Scanning ..........................................11

Site Analysis....................................................11

Programming...................................................12

Engineering Analysis ............................................12

Design Authoring ...............................................12

Sustainability (LEED) Evaluation..................................12

Design Review ..................................................13

Code Validation.................................................13

Clash Detection.................................................13

Cost Estimation.................................................14

Construction System Design .....................................14

Phase Planning .................................................14

Digital Fabrication ..............................................15

Record Modeling................................................15

Asset Management..............................................16

Parametric Modeling....................................................16

Model Discrepancies ...................................................17

Uniformat Classiﬁcation and Omniclass ..................................17

Coordinate System.....................................................17

Model Continuity ......................................................17

Model Level of Development............................................17

LOD 100 .......................................................18

LOD 200 .......................................................18

LOD 300 .......................................................19

LOD 400.......................................................19

LOD 500 ......................................................20

Model Granularity.....................................................20

PART THREE SUBMISSION AND DELIVERABLES 21

Submission Requirements ..............................................21

Pre-Schematic Design ..........................................22

Existing Conditions Model................................22

Site Analysis ............................................22

Space Program .........................................23

Design Authoring - Volumetric Model .....................23

Zoning & Orientation ....................................23

Schematic Design..............................................23

Design Authoring - Preliminary Model .....................23

Sustainability (LEED) Evaluation..........................24

Programing.............................................24

Phase Planning..........................................24

Preliminary Cost Estimate (Square Footage)...............24

Design Review ..........................................24

Preliminary Clash Detection ..............................25

Design Development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Design Authoring – Models...............................25

Sustainability (LEED) Analysis............................25

Cost Estimation .........................................25

Clash Detection .........................................25

Program Validation ......................................26

Construction Documents .......................................26

Design Authoring - Final Model...........................26

3D Coordination Validation...............................26

Cost Estimation .........................................26

Sustainability (LEED) Reporting ..........................26

Bid, Award and Registration ....................................26

Services During Construction ...................................27

Construction System Design .............................27

Phase Planning..........................................27

Scheduling .............................................27

3D Coordination ........................................28

Digital Fabrication.......................................28

Record Modeling ........................................28

Asset Management......................................28

Submissions & Deliverables ............................................28

Nomenclature .................................................28

Discipline Codes ...............................................28

Project Identiﬁcation Number ...................................29

File Naming ...................................................29

Model Files .............................................29

Plotsheet Files (DWFX/PDF) .............................29

Discipline Designator Codes..............................30

Sheet Number ..........................................30

Revision Decimal Number................................30

Revisions ................................................31

Inter-Disciplinary Coordination Files (NWD) ................31

Object Naming...........................................31

Types Within Objects .....................................31

Deliverables ...................................................32

Electronic .....................................................32

3D Model Files Required:.................................32

2D Model Files Required:.................................32

Hardcopy .....................................................32

PART FOUR GLOSSARY AND APPENDIX 33

Deﬁnitions ...........................................................33

DDC BIM Execution Plan (BEP) Template ...............................35

Object Requirements..................................................36

Air Terminals............................................36

Cable Trays .............................................37

Casework...............................................37

Ceilings ................................................37

Columns................................................38

Communication Devices .................................38

Conduits ...............................................38

Curtain Walls ...........................................39

Data Devices ...........................................39

Doors ..................................................39

Ducts ..................................................40

Electrical Equipment ....................................40

Electrical Fixtures ........................................41

Fire Alarm Devices .......................................41

Flex Ducts ..............................................42

Flex Pipes ..............................................42

Floors ..................................................43

Furniture ...............................................43

Furniture Systems .......................................43

Lighting Devices ........................................44

Lighting Fixtures ........................................44

Mechanical Equipment...................................45

Pipes...................................................45

Plumbing Fixtures .......................................46

Railings ................................................46

Ramps .................................................46

Roofs ..................................................47

Rooms .................................................47

Security Devices ........................................48

Spaces .................................................49

Sprinklers ..............................................50

Stairs ..................................................50

Structural Beam Systems .................................51

Structural Columns .......................................51

Structural Foundations ...................................51

Structural Framing ......................................52

Structural Stieners .....................................52

Structural Trusses .......................................53

Telephone Devices ......................................53

Walls...................................................54

Windows ...............................................54

Zones ..................................................54

Updates and Revisions ................................................55

Contact Information ..................................................55

Message From

The Commissioner

Managing the design and construction for New York City’s capital

projects is an increasingly collaborative process. Our consultant

design teams include many separate ﬁrms representing the various

disciplines and specialties, whose work must be tightly coordinated.

Our consultants must work closely with DDC and with our client

agency representatives as well as with other city agencies involved in

the design and construction of a civic building. Because of this, DDC

continually looks for ways to improve the collaborative process. One

way to do so is by using Building Information Modeling. BIM strengthens

collaboration by allowing all members of the design team to accurately

add to a shared database information about how a building looks and

functions. Using this information, the BIM database creates a virtual

model of a building at every stage – from design conception through

construction and occupancy.

BIM is currently being used on major projects around the world and

is quickly becoming an industry standard. It not only provides us with

a virtual representation of our projects at all stages, but also tracks

and analyzes design, construction, and operational information that

are critical to the success of these projects. Shared access to this

information creates valuable insight across the building lifecycle and

can help improve project management performance.

We believe that the successful integration of civic building design,

delivery, and operations through BIM will streamline the project

management process, resulting in cost-savings and more on-time

completion. We are committed to broadening and accelerating the

adoption of BIM for City projects. We have been working closely with

the A/E/C community and other public works agencies regionally on

appropriate uses and optimizing the beneﬁts from BIM, and we are

pleased to introduce this Citywide BIM standard that will be used for

DDC projects and may be adopted by other agencies and organizations.

Sincerely,

David J. Burney, FAIA

PART ONE GENERAL INFORMATION

DDC Public

Buildings Division

The Public Buildings Division manages the design and construction of build-

ings for more than 20 client agencies. The Division manages new buildings and

substantial renovations for a wide range of building types including libraries,

museums, police precincts, ﬁrehouses, emergency medical stations, transporta-

tion facilities, health centers, day care centers, senior centers, courts, and cor-

rectional facilities.

Building Information

Modeling (BIM)

Building Information Modeling (BIM) refers to a digital collection of software ap-

plications designed to facilitate coordination and project collaboration. BIM can

also be considered as a process for developing design and construction docu-

mentation by virtually constructing the building on the computer before actually

building it.

BIM is a multidimensional model (3D, 4D [time], and 5D [cost]) in which a virtually

unlimited range of visual and non-visual project and building related information is

tagged or attached to each model element as a collection of attributes.

BIM is scalable not just in terms of project magnitude and complexity, but in the

breadth and depth of its application and use on a project.

Using BIM tools, designs can be developed directly in 3D as a collection of model

elements (similar to the lines, arcs and blocks in a 2D CAD drawing). As the

project is developed, increasing amounts of intelligence are added to each model

element, and this intelligence is captured in a database.

The beneﬁts of using BIM are:

Immediate 3D design visualization

Enhanced coordination, as conﬂicts between systems are easily seen

and addressed early in the process, before they become costly change

orders

The ability to model schedule scenarios and site logistics by time loading

the elements of the model

The ability to link the model elements to cost data for real-time estimat-

ing and to facilitate a transparent bid process

Transition of the model to the users after construction for use in building

operations and maintenance

The Purpose of This Guide

The DDC BIM Guide provides guidelines for the consistent development and

use of BIM across multiple building types and for a wide range of municipal

agencies. Furthermore, this guide will be useful for any agency or organiza-

tion that may be interested in utilizing BIM for public projects in New York

Part One General Information / DDC Public Buildings Division

Part One General Information / Public Buildings Lifecycle Vision 7

City but do not have their own standards. The guide is intended to ensure

uniformity in the use of BIM for all New York City Public Buildings projects.

The BIM guide considers the end-use of the model for multiple client agen-

cies, allowing qualiﬁed and authorized client agency representatives to review

the ways in which the BIM may facilitate their ongoing building operation and

maintenance protocols, and tailor their agency requirements and standards

to leverage the enhanced capabilities provided by BIM for building O&M. This

BIM Guide will also support client agency design standards in support of each

agency’s mission.

BIM toolsets and uses continue to evolve, and the DDC BIM Guide will continue

to be reviewed and updated to reﬂect advances in industry technology, meth-

odology and trends, as deemed appropriate for municipal agency work in New

York City.

Public Buildings

Lifecycle Vision

DDC Division of Public Buildings considers that Building Information Modeling

(BIM) as technology and process is superior to traditional non-BIM methods when

properly scaled in its use. BIM as an enhanced digital delivery system represents a

change in how the DDC, our end-users, and our Design Consultants interact and

use information. DDC is committed to our internal growth as well as that of our

clients and design consultants in the eective and ecient use of BIM in support

of our Lean strategies and delivery methods.

The goal of the Division of Public Buildings is to improve the design, management,

and construction of our projects and deliver superior public facilities to over 20

client agencies and the millions of people they serve. The information in BIM and

the digitization of building data will improve and enhance buildings from design

concept to operations and on to repurposing or demolition. The standardization

of this data is important to our agency, our clients, and the City of New York as we

begin to share more and more information across multiple agencies on multiple

platforms and with our millions of citizens.

Objectives

BIM authoring software shall be used throughout the project lifecycle for all DDC

projects designated to be delivered using BIM. DDC recognizes the many intrica-

cies of the design process throughout all its phases. The intended use of BIM and

the application of the DDC BIM guidelines are to be coordinated with the general

and speciﬁc project delivery guidelines laid out in the DDC Design Consultant

Guide. Where applicable, and possible BIM’s shall be created in support of all de-

sign criteria, Pre-Preliminary Design, Schematic Design, Design Development, Final

Design, BID Award and Registration, Services during Construction, and Regulatory

Approvals. In addition, BIM’s shall be created in support of their intended uses and

speciﬁed levels of development outlined in this document.

Software

DDC recognizes that many BIM applications exist, and in support of our diverse

consultants and end-users the DDC does not require the use of any speciﬁc com-

mercially available software. DDC also recognizes that of the commercially avail-

Part One General Information / Project Delivery Models8

able BIM software there are applications that have a wider market share as well as

larger user base amongst our consultants and end-users. To that end; throughout

this document there may be references to speciﬁc tools or functions which are

intended to be implicit in nature and shall be applied to your speciﬁc workﬂow or

application where possible.

DDC encourages the use of software applications that foster collaboration

throughout the design and construction process. Software applications produced

by the same developer but speciﬁc to each discipline may help achieve this level

of collaboration.

A parametric modeling application is required for the creation of any BIM. Plans,

elevations, sections, details and schedules shall be created from the BIM where

model geometry may be represented in 2D and any other non-geometric data

shall be attached to those 2D elements.

The following table shows a list of current known and acceptable BIM applications

for DDC Projects. This list does not preclude the utilization of other software for

the prescribed uses.

Use Software

Space Programing Trelligence Aﬁnnity Programming. Onuma

System, dRofus Smart Planning

Architectural Design

Autodesk Revit Architecture, Bentley Archi-

tecture, Graphisoft ArchiCAD, Nemetschek

Vectorworks Architect

MEP Design Autodesk Revit MEP, Bentley Building Me-

chanical Systems, Graphisoft MEP Modeler

Structural Design Autodesk Revit Structure, Tekla Structures,

Bentley Structural Modeler

Inter-Disciplinary Coordination and

Clash Detection Navisworks Manage; Solibri Model Checker

Code Checking Solibri Model Checker

Project Delivery Models

(Design-Bid-Build; CM/

Build; Design Assist)

Choice of delivery model will aect the way in which the BIM is created and built

upon, and should be determined in the contract prior to project initiation. It is

important to understand how the choice of Design-Bid-Build (DBB), Design Build

(DB), or Design Assist (DA) to the extent permitted under state law will impact

BIM. Knowing in advance will ensure that BIM is properly managed and main-

tained from project inception. Considerations shall be given to the number of BIM

managers required where DB may only have one BIM manager and DBB will have

a BIM manager for design and one for construction. Similarly, considerations shall

be given to contractually deﬁned risk where one combined design and construc-

tion model exist or multiple BIM’s exist for design and construction. DDC has had

success with an integrated project model that fosters collaboration and brings

multiple stakeholders together early in the decision making process through com-

bined and integrated project oces. Data interoperability is important to DDC and

is in line with our life cycle vision. It is also important that nationally deﬁned stan-

dards and protocols be used when developing BIM’s so that data may be normal-

ized for multiple uses. Standards such as the National BIM Standards, OmniClass,

Uniformat, Masterformat, and GUID’s should be used whenever possible.

Part One General Information / Model Ownership 9

Model Ownership

DDC holds ownership of the BIMs including all inventions, ideas, designs, and

methods contained within the model. This includes, but is not limited to; the con-

tent submitted as part of the BIMs itself.

Outside resources, such as consultants and/or contractors, using the BIM are

granted temporary use of it for the duration of the project. After project comple-

tion they are required to return all copies of the BIM to the DDC.

DDC holds ownership of all the contents within the models from project concep-

tion (pre-schematic design) all the way to completion (construction)

BIM Roles and

Responsibilities

This section describes the BIM Roles and Responsibilities of the Team Members

involved in DDC Projects. These Roles and Responsibilities may vary depend-

ing on the Project Delivery Model and speciﬁc project conditions. At a minimum

these roles and responsibilities must be met on all DDC BIM projects, any further

consideration or elaboration on these roles and responsibilities will be included in

the BIM Execution Plan (BEP)

BIM Manager

A BIM manager shall serve as the key point of contact with the DDC for all BIM

related activity on a project. Individuals in this role will have the necessary ex-

perience for the successful implementation of BIM in regards to the scope and

complexity of any given project. In addition this individual shall have Intermediate

knowledge and skills in the use of the proposed BIM authoring application as well

as signiﬁcant experience in the overall BIM process and ancillary tools.

In general, minimum responsibilities shall include the following:

Assures development and compliance with DDC BEP

Maintains and ensures adherence to the DDC - BIM Guidelines Manual

Overall responsibility for the proper use, implementation, and creation of

BIM during design or construction

Manage and maintain the creation of all BIM content

Coordinate and Manage BIM related meetings with lead BIM technicians

Interface with IT managers to ensure proper hardware and software is in

place and functioning properly

Provides speciﬁcations for BIM coordination rooms including necessary

hardware and software for proper use

Facilitates use of correct models and assures the proper compilation of

multiple models in support of necessary BIM uses

Manages coordination process, provides reports with the identiﬁcation

and or resolution of hard and soft conﬂicts

Facilitates the proper export and data extraction from the BIM as re-

quested and in support of speciﬁc BIM uses

Assures proper deliverables are met and provided in formats as speciﬁed

Coordinates BIM training as required

Part One General Information / Discipline Trade BIM Coordinators10

Discipline Trade BIM

Coordinators

A Discipline Trade BIM Coordinator shall serve as the lead BIM technician

within their discipline or trade. Individuals in this role will have the necessary

experience for the successful implementation of BIM speciﬁc to their profes-

sion or trade. In addition, this individual shall be responsible for coordinating

his or her work with the rest of the design or construction team.

In general, minimum responsibilities shall include the following:

Coordinates all technical discipline and trade speciﬁc BIM activity with

BIM manager. Tools, Content, Standards, Requirements

Manage other BIM Users within the Discipline

Coordinate any BIM related issues with the rest of their Discipline Team

Supports team in the use of BIM tools

Create discipline speciﬁc BIM content

Coordinate discipline speciﬁc clash detection and resolution activities

Export the Model for Inter-Disciplinary Clash Detection.

Coordinates BIM training as required.

BIM Execution Plan

The DDC requires a BIM Execution Plan (BEP) within 30 days of project award

and registration. The BEP shall align with the speciﬁc project delivery model for

the project.

The intent of the BIM Execution Plan is to provide a framework that will let all the

parties involved use and take advantage of BIM technology, along with best prac-

tices and procedures aligned with the DDC BIM Guidelines, to ensure the project is

complete on time and with minimum design and or coordination problems.

DESCRIPTION

The BIM Execution Plan (BEP) is a detailed plan that deﬁnes how the proj-

ect will be executed, monitored and controlled with regard to BIM. It is re-

quired that a BEP be developed to provide a master information and data

management plan and assignment of role and responsibilities for model

creation and data integration at project initiation. The Plan shall incorpo-

rate requirements speciﬁed for a project and will be developed through a

collaborative approach involving all stakeholders.

The BEP will outline the project procurement strategy and will align to

suit the needs of DBB, DB, DA, and DDC’s Integrated Delivery Strategy.

Aspects of the BEP shall focus on Team Skills, Industry Capability, and

improvements in technology. Through this collaborative process the team

shall agree on how, when, why, and to what Level of Development (LOD)

BIM shall be used in support of project outcomes and objectives. Depend-

ing on the procurement strategy, multiple BEP’s may be needed. For ex-

ample, in the case of Design-Bid-Build, one shall be provided during design

and one during construction. For an Integrated Project, one BEP may be

sucient for the entire duration of the project.

Part Two BIM Use and Requirements / BIM Uses 11

PART TWO BIM USE AND REQUIREMENTS

BIM Uses

The nature of BIM technology allows dierent stakeholders to use the BIM in mul-

tiple ways depending on the speciﬁc needs they may have. As the project moves

from phase to phase, the information contained within the BIM shall evolve in a

progressive manner.

The following list of BIM uses are the most common applications of BIM on DDC

projects. BIM uses shall be considered and aligned with project goals and selected

based on added value. BIM use shall be assessed and recorded in the DDC BEP.

One single BIM may perform multiple BIM uses. Therefore, the DDC is not expect-

ing one model per each use described below.

EXISTING CONDITIONS MODELING

A process in which a project team develops a 3D Model of the existing

conditions of a facility. This model can be developed in multiple ways

depending on what is desired and what is most ecient. Once the model

is constructed, it can be queried for information, whether it is for new con-

struction or a modernization project.

The value of Existing Conditions Modeling is:

Document existing building for historical use

Provide documentation of environment for future uses

Enhance eciency and accuracy of existing

conditions documentation

Provide location information

Aids in future modeling and 3D design coordination

Use for visualization purposes

Laser scanning

A process in which a laser beam is used to rapidly capture existing condi-

tions of a building (interiors and/or exteriors) and/or natural environments

(landscape) through equipment capable of measuring every point at a

speciﬁc distance, speeding up the process of traditional data collection

techniques and reducing errors and omissions.

Consultants using this technology will be responsible for processing this

information and incorporating it back into the BIM as existing conditions.

This process can be outlined in the BEP and will be reviewed by DDC’s Site

Engineering Laser Scanning group.

SITE ANALYSIS

A process in which BIM and or GIS tools are used to evaluate properties in

a given area to determine the most optimal site location for a future proj-

ect. The site data collected is used to ﬁrst select the site and then position

the building based on other criteria.

The value of Site Analysis is:

Use calculated decision making to determine if potential sites

meet the required criteria according to the project requirements,

technical factors, and ﬁnancial factors

Decrease costs of utility demand and demolition

Increase energy eciency

Part Two BIM Use and Requirements / BIM Uses12

Minimize risk of hazardous material

Maximize return on investment

PROGRAMMING

A process in which a spatial program is used to eciently and accurately

assess design performance in regard to spatial requirements. The devel-

oped BIM allows the project team to analyze space and understand the

complexity of space standards and regulations. Critical decisions are made

in this phase of design and bring the most value to the project when needs

and options are discussed with the client and the best approach

is analyzed.

The value of Programming is:

Ecient and accurate assessment of design performance in re-

gard to spatial requirements by the owner

ENGINEERING ANALYSIS

A process in which intelligent modeling software uses the BIM to deter-

mine the most eective engineering method based on design speciﬁca-

tions. Development of this information is the basis for what will be passed

on to the owner and/or operator for use in the building’s systems. These

analysis tools and performance simulations can signiﬁcantly improve the

design of the facility and its energy consumption during its lifecycle in

the future.

The value of Engineering Analysis is:

Achieve optimum, energy-ecient design solution by applying

various rigorous analyses

Faster return on investment with applying audit and analysis tools

for engineering analyses

Improve the quality and reduce the cycle time of the

design analyses

DESIGN AUTHORING

A process in which 3D software is used to develop a Building Information

Model based on criteria that is important to the development of the build-

ing’s design. Design authoring tools are a ﬁrst step towards BIM and the

key is connecting the 3D model with a powerful database of properties,

quantities, means and methods, costs and schedules.

The value of Design Authoring is:

Transparency of design for all stakeholders

Better control and quality control of design, cost and schedule

Powerful design visualization

True collaboration between project stakeholders and BIM users

Improved quality control and assurance

SUSTAINABILITY (LEED) EVALUATION

A process in which a project is evaluated based on LEED or other sustain-

able criteria. This can refer to materials, performance, or a process. Sustain-

ability Evaluations can be applied across all four phases of a construction

project, Planning, Design, Construction, and Operation. Sustainability

evaluation is most eective when it is done in planning and design stages

and then applied in the construction and operations phase. Model all

sustainable aspects of a project throughout its life-cycle in order to obtain

the desired LEED certiﬁcation in the most ecient manner by condensing

design analyses into a single database.

Part Two BIM Use and Requirements / BIM Uses 13

The value of Sustainability (LEED) Evaluation is:

Accelerate design review and LEED certiﬁcation process with

ecient use of a single database with all the sustainable features

present and archived

Improved communication between project participants in order to

achieve LEED credits and decreased redesign eorts as a result

Align scheduling and material quantities tracking for more ef-

ﬁcient material use and better cash ﬂow analysis

Optimize building performance by tracking energy use, indoor air

quality and space planning for the adherence to LEED standards

leading to integrated facility management using a BIM model

DESIGN REVIEW

A process in which a 3D model is used to evaluate meeting the program

and set criteria such as layout, sightlines, lighting, security, ergonomics,

acoustics, textures and colors. Virtual mock-ups can be done in high

detail to quickly analyze design alternatives and solve design and con-

structability issues.

The value of Design Review is:

Eliminate costly and timely traditional construction mock-ups

Model dierent design options and alternatives in real-time during

design review by end users or owner

Create shorter and more ecient design reviews

Resolve the conﬂicts that would otherwise only become apparent

in a mock-up and model the potential ﬁxes in real-time along with

tolerances revised and RFI’s answered

Preview space aesthetics and layout during design review in a

virtual environment

Evaluate eectiveness of design in meeting building program

criteria and owner’s needs

Easily communicate the design to the owner, construction team

and end users. Get instant feedback on meeting program require-

ments, owner’s needs and building or space aesthetics

CODE VALIDATION

A process in which code validation software is utilized to check the model

parameters against project speciﬁc codes.

The value of Code Validation is:

Validate that building design is in compliance with speciﬁc

codes (IBC International Building Code, ADA Americans with

Disabilities Act guidelines and other project related codes using

the 3D BIM).

Code validation done early in design reduces the chance of code

design errors, omissions or oversights that would be time consum-

ing and more expensive to correct later in design or construction

Code validation done automatically while design progresses gives

continuous feedback on code compliance

CLASH DETECTION

A process in which clash detection software is used during the coordi-

nation process to determine ﬁeld conﬂicts by comparing 3D models of

building systems. The goal of clash detection is to eliminate major system

conﬂicts prior to installation.

Part Two BIM Use and Requirements / BIM Uses14

The value of Clash Detection is:

Reduce and eliminate ﬁeld conﬂicts; which reduces RFI’s signiﬁ-

cantly compared to other methods

Visualize construction sequences, staging and logistics

Reduced construction cost; potentially less cost growth (less

change orders)

Decrease construction time

Increase productivity on site

More accurate as built drawings

COST ESTIMATION

A process in which the BIM can be used to generate an accurate quantity

take-o and cost estimate early in the design process and provide cost ef-

fects of additions and modiﬁcations with potential to save time and money

and avoid budget overruns. This process also allows designers to see the

cost eects of their changes in a timely manner which can help curb exces-

sive budget overruns due to project modiﬁcations.

The value of Cost Estimation is:

Precisely estimate material quantities and generate quick revisions

if needed

Stay within budget constraints while the design progresses

Better visual representation of project and construction elements

that need to be estimated

Provide cost information to the owner during the early decision

making phase of design

Focus on more value adding activities in estimating (identifying

construction assemblies, generating pricing and factoring risks)

which are essential for high-quality estimates

Exploring dierent design options and concepts within the

owner’s budget

Saving estimator’s time and allowing them to focus on more

important issues in an estimate since take-os can be automati-

cally provided

CONSTRUCTION SYSTEM DESIGN

A process in which 3D system design software is used to design and

analyze the construction of a complex building system (form work, glazing,

tie-backs).

The value of Construction System Design is:

Ensure constructability of a complex building system

Increase construction productivity

Increase safety awareness of a complex building system

Increase Communication

PHASE PLANNING

A process in which BIM is utilized to eectively plan the phased occupancy

in a renovation, retroﬁt, addition, or to show the construction sequence

and space requirements on a building site. 4D modeling is a powerful

visualization and communication tool that can give a project team, includ-

ing the owner, a better understanding of project milestones and construc-

tion plans.

Part Two BIM Use and Requirements / BIM Uses 15

The value of Phase Planning is:

Better understanding of the phasing schedule by the owner and

project participants and showing the critical path of the project

Dynamic phasing plans of occupancy oering multiple options

and solutions to space conﬂicts

Integrate planning of human, equipment and material resources with

the BIM model to better schedule and cost estimate the project

Space and workspace conﬂicts identiﬁed and resolved ahead of

the construction process

Marketing purposes and publicity

Identiﬁcation of schedule, sequencing or phasing issues

More readily constructible, operable and maintainable project

Monitor procurement status of project materials

Increased productivity and decreased waste on job sites

Conveying the spatial complexities of the project, planning infor-

mation, and support conducting additional analyses

DIGITAL FABRICATION

A process that utilizes machine technology to prefabricate objects directly

from a BIM. The Model is spooled into appropriate sections and input into

fabrication equipment for production of system assemblies.

The value of Digital Fabrication is:

Automate building component fabrication

Minimize tolerances through machine fabrication

Maximize fabrication productivity

RECORD MODELING

A process used to depict an accurate representation of the physical condi-

tions, environment, and assets of a facility. The record model should, at a

minimum, contain information relating to the main architectural and MEP

elements. Additional information including equipment and space planning

systems may be necessary if the owner intends to utilize the information

for maintenance and operations.

With the continuous updating and improvement of the record model and

the capability to store more information, the record model contains a true

depiction of space with a link to information such as serial codes, warran-

ties and maintenance history of all the components in the building. The

record model also contains information linking pre-build speciﬁcation to

as-built speciﬁcations. This allows the owner to monitor the project relative

to the speciﬁcations provided.

The value of Record Modeling is:

Aid in future modeling and 3D design coordination for renovation

Provide documentation of environment for future uses, e.g., reno-

vation or historical documentation

Dispute elimination (for example, a link to contract with histori-

cal data highlights expectations and comparisons drawn to ﬁnal

product.)

Solid understanding of project sequencing by stakeholders leads

to reduced project delivery times, risk, cost, and lawsuits

Part Two BIM Use and Requirements / Parametric Modeling16

ASSET MANAGEMENT

A process in which an organized management system will eciently aid in

the maintenance and operation of a facility and its assets. These assets,

consisting of the physical building, systems, surrounding environment,

and equipment, must be maintained, operated, and upgraded at an e-

ciency which will satisfy both the owner and users at the lowest appropri-

ate cost. It assists in ﬁnancial decision making, as well as short-term and

long-term planning. Asset Management utilizes the data contained in a

record model to determine cost implications of changing or upgrading

building assets, segregate costs of assets for ﬁnancial tax purposes, and

maintain a current comprehensive database that can produce the value

of a company’s assets.

The value of Asset Management is:

Store operations, maintenance owner user manuals, and

equipment speciﬁcations

Perform and analyze facility and equipment condition

assessments

Maintain up-to-date facility and equipment data including, but

not limited to, maintenance schedules, warranties, cost data,

upgrades, replacements, damages/deterioration, maintenance

records, manufacturer’s data, equipment functionality, and others

required by owner

Provide one comprehensive source for tracking the use,

performance, and maintenance of a building’s assets for the

owner, maintenance team, and ﬁnancial department

Produce accurate inventory of current company assets which

aids in ﬁnancial reporting, bidding, and estimating the future cost

implications of upgrades or replacements of a particular asset

Allow for future updates of record model to show current building

asset information after upgrades, replacements, or maintenance

by tracking changes

Aid ﬁnancial department in eciently analyzing dierent types of

assets through an increased level of visualization

Increase the opportunity for measurement and veriﬁcation of

systems during building occupation

Parametric Modeling

To allow the dierent BIM Uses described in the BIM Uses section, Parametric

Modeling is to be used on all DDC BIM Projects. Parametric Modeling is character-

ized by designing with objects having real-world behaviors and attributes, using

parameters (numbers or characteristics) to determine the behavior of a graphical

entity and deﬁne relationships between model components.

A parametric modeling application is required for the creation of any BIM. Plans,

elevations, sections, details, and schedules shall be created from the BIM where

model geometry may be represented in 2D and any other non-geometric data

shall be attached to those 2D elements.

NOTE:

The integrity of the Model should not be compromised to reﬂect the 2D represen-

tation of 3D elements contained within the BIM.

To ensure consistency, all models and parts of models designed though analysis,

shop drawing or any other non-parametric application must be integrated back

into the design or construction models at each submission.

Part Two BIM Use and Requirements / Model Discrepancies 17

Model Discrepancies

When conﬂicts exist between the contents of a BIM and the Contract Set of

Drawings, the information contained within the Contract Set will prevail and will

be considered as deﬁnitive. The BIM shall still contain accurate representations of

the design condition regardless of what is displayed on the drawing set.

Uniformat Classiﬁcation

and Omniclass

DDC BIM Guidelines organizes all of its assets based on the Uniformat System

(CSI Uniformat 2004 Classiﬁcation) and with the OmniClass System (OmniClass

Construction Classiﬁcation System). These classiﬁcation systems organize all the

dierent building elements into speciﬁc groups.

The CSI Release 2010 Edition of UniFormat and the 2010 OmniClass Tables should

be used as a reference when classifying Objects within the BIM.

Coordinate System

In an eort to organize, consolidate and standardize the information generated

and consumed by all Design Disciplines within the DDC, BIM projects shall

use NY State Plane NAD83(NA2011) Epoch 2010.00 Long Island zone unless

otherwise dictated.

Model Continuity

DDC requires that all BIMs shall be developed using object-based elements only,

such as Columns, Beams, Walls, Doors, Windows, etc. along with their associated

parametric information. This will ensure continuity of the BIM process from Con-

ceptual Design through Construction. As well, provide a foundation for the owner

of the facility to expand the model for operations and maintenance.

Model Level

of Development

The Model Level of Development (LOD) describes the level of detail to which a

Model is developed and its minimum requirements. The Level of Development is

accumulative and should progress from LOD 100 at Conceptual Design through

LOD 400 at completion of Construction.

The DDC Level of Development has been developed in alignment with the AIA –

Exhibit E202 Document.

Part Two BIM Use and Requirements / Model Level of Development18

LOD 100

Level 100 Models include elements such as Masses and are used for pre-

liminary studies, such as Conceptual Design and Overall Project Phasing.

Analysis based on their Location and Orientation can be performed. Quan-

tities based on Overall Area and Overall Volume can be obtained.

The images above show the Building Elements as Masses and its associated

Area and Volume.

LOD 200

Level 200 Models include elements in which Masses have been replaced

with Generic Components. Analysis based on Overall Systems can be per-

formed. Quantities based on speciﬁ c Elements can be obtained.

The images above show the di erent Building Elements as Generic Com-

ponents. The major characteristics of components are their thickness and

width allowing quick takeo s.

Part Two BIM Use and Requirements / Model Level of Development 19

LOD 300

Level 300 Models include elements in which Generic Components have

been replaced with fully deﬁned Assemblies. Analysis based on Speciﬁc

Systems can be performed. Quantities based on Materials can be obtained.

The images above show the dierent Building Elements as fully deﬁned As-

semblies, where the dierent components have well-deﬁned characteristics;

therefore a more speciﬁc takeo can be performed.

At LOD 300 the model can be leveraged for the generation of traditional

Construction Documents and Shop Drawings. The model can be used for

analysis such as: Energy Performance, Clash & Cost.

LOD 400

Level 400 Models include elements that are accurate in terms of size,

shape, location, quantity and orientation with complete fabrication, assem-

bly and detailing information. At this Level, the Model may also have non-

geometric (3D) information such as text, dimensions, notes, 2D details, etc.

The image above shows a detail where 2D information has been placed on

top of the 3D Model on a Section View.

At LOD 400 the model is a representation of the proposed elements.

Analysis can be performed such as: Energy Performance, Clash Detection,

and Sequencing & Cost.

Part Two BIM Use and Requirements / Model Granularity20

LOD 500

Level 500 Models includes elements modeled as constructed. Elements are

modeled to accurate size, shape, location and orientation. Non geometric

or physical attributes are included as parameters to the geometric shape.

At this level, model granularity is similar to LOD 400 with the exception

that elements are as-constructed.

At LOD 500, the model is capable of being utilized for operations

and maintenance.

Model Granularity

BIM’s shall be created providing an accurate representation of geometry needed

to support speciﬁc BIM use. The level of detail needed will vary by object and by

model, and the BIM itself may not represent the exact design intent of real live

elements. As a rule of thumb, any object that ﬁts within a 6”x6”x6” cube should

not be modeled. Rather than modeling provide a generic node, or other graphic

which contains appropriate parametric characteristics. Examples of this may be

a telephone or a junction box which may only require a generic representation as

a modeled element containing the correct parameters and properties, this same

modeled element may be represented in typical views such as plan, elevation, and

section with the standard technical symbol.

Part Three Submission and Deliverables / Submission Requirements 21

PART THREE SUBMISSION AND DELIVERABLES

Submission Requirements

At each phase of the Design and Construction process the NYC DDC requires the

delivery of the model, electronic versions of hardcopy submissions and other ﬁles

that support the intent of the project.

In an eort to assist the consultants and contractors with the requirements of

each phase, ﬁle types have been identiﬁed in the section entitled Deliverables. To

further guide in the speciﬁcs of each deliverable, the section describes in further

detail the requirements of each phase of a typical project.

The table provided on the next page describes the types of models and any

analysis ﬁles expected at each submission. Depending on the project speciﬁcs, the

Building Information Model may vary. It is anticipated that each ﬁle will be sup-

plied at the incremental submissions during each phase as they are available.

As previously stated, one single BIM may perform multiple uses and, depending

on the project speciﬁcs, not all Design Phases may require all Building Information

Model instances described in the table below.

Continuing through the remainder of the section, each Building Information Model

is described in further detail.

Through each Building Information Model, description references to terminol-

ogy and processes are made to both BIM Uses and Model Requirements already

deﬁned in previous sections of this document.

An appendix to this document entitled “Object Requirements” contains a list of

objects with tables outlining object parameters required at each phase of the

project. Speciﬁcally, parameters are deﬁned by Level of Development to better

align with industry standards. Each parameter will support the anticipated analysis

performed on the model at each phase. While the appendix contains a signiﬁcant

group of objects it is not intended to be all inclusive. As objects are created not

identiﬁed, the tables are to be used as a guide to the development of objects and

elements throughout the project.

Part Three Submission and Deliverables / Submission Requirements 22

Design Phase Building Information Model

Pre-Schematic

(LOD 100)

Existing Condition Model

Site Analysis

Space Program

Design Authoring - Volumetric Model

Zoning and Orientation

Schematic

(LOD 200)

Design Authoring - Preliminary Model

Sustainability (LEED) Evaluation

Programing

Phase Planning

Preliminary Cost Estimate (Square Footage)

Design Review

Preliminary 3D Coordination

Design Development

(LOD 300)

Design Authoring - Model

Sustainability (LEED) Analysis

Detailed Energy Analysis

System Cost Estimates

3D Coordination Reporting

Program Validation

Construction Documents

(LOD 400)

Design Authoring - Final Model

3D Coordination Validation

Cost Estimation

Sustainability (LEED) Reporting

Services During Construction

(LOD 500)

Construction System Design

Phase Planning

Digital Fabrication

Record Modeling

Asset Management

PRE-SCHEMATIC DESIGN

Pre-Schematic Design should align with the First Level of Development

(LOD 100) as described in this Manual, and the Pre-Schematic Design

section of the DDC Design Consultant Guide

eXisTing cOnDiTiOns MODeL

The consultant shall provide a parametric model of all exiting conditions

that may aect their scope of work. Understanding the capabilities of BIM

and the ability to capture multiple BIM uses in a single model, objects and

model elements designated as Existing Conditions shall be consistently

deﬁned as such and clearly managed and dierentiated from new con-

struction or proposed future work.

siTe anaLYsis

Surveys shall be provided as 3D topographic information within the Model.

Using best BIM practices survey points using comma separated values in

Part Three Submission and Deliverables / Submission Requirements 23

.txt format or points available in other CAD applications shall be imported

and used as the basis to develop topography.

Additional information might be provided as 2D elements as long as

they are not required for the project speciﬁcs or they are used as a

reference only.

sPace PrOgraM

Where the consultant is developing a space program for the project, the

space program shall be able too seamlessly integrate with the BIM applica-

tion in use during the schematic design phase, as well as be imported and

further developed in any DDC approved space programming application.

Design aUTHOring - VOLUMeTric MODeL

The Volumetric Model shall be deﬁned as masses based on the information

gathered from the Site and should deﬁne the building footprint. This model

should be the basis of what will be developed in future phases.

As the Model evolves, the Design Authoring – Volumetric Model

should include:

Building function and occupancy

Building location

Building HVAC equipment information (EER, COP, MBH, kW,

tons, etc.)

Building envelope construction components including U-values,

SHGC, absorptivity, SRI value, color, thickness, etc.

ZOning & OrienTaTiOn

The Volumetric Model shall be used in support of an early decision making

process for building location and orientation within the property line.

The purpose of these simulations is to inform early design decisions with

reference to building envelope, lighting, domestic water, and HVAC sys-

tems. Multiple energy simulation iterations shall be performed by changing

one component at a time and comparing those results to the results of

other iterations in a “percent better” or “percent worse” scenario.

Design components that present “percent better” that are in line with the

project energy goals will then be developed further in the schematic

(criteria) design phase.

SCHEMATIC DESIGN

Schematic Design must align with the Second Level of Development (LOD

200) as described in this Manual and the Schematic Design Section of the

DDC Design Consultant Guide.

Design aUTHOring - PreLiMinarY MODeL

The Preliminary Model shall at least include the following generic elements

to ensure the appropriate eort within this phase. Refer to Object Require-

ments in the appendix for a detailed description of each of these Objects.

Site Model

• ExistingConditions

• Topography

Architecture

• InteriorandExteriorWalls

• DoorsandWindows

• StairandRamps

• Ceilings

• Roofs

• BoundedRoomswithNamesandNumbers

Structure

Foundations

Part Three Submission and Deliverables / Submission Requirements 24

Columns

Beams

Bracing

Floors

Mechanical

Equipment

Main Duct Lines

Fire Protection

Equipment

Main Pipe Lines Plumbing

Equipment and Fixtures

Main Pipe Lines Electrical

Panels and Fixtures

Main Conduit Lines Electronics

Panels and Fixtures

Main Conduit Lines

sUsTainaBiLiTY (LeeD) eVaLUaTiOn

All aspects of sustainability should be considered at this stage in order

to evaluate the LEED criteria of materials, performance, and processes.

Building performance should be optimized by tracking energy use, indoor

air quality and space planning for the adherence to LEED standards. LEED

goals should be established at this stage and strategies for evaluating,

tracking, and documenting LEED within the BIM shall be implemented.

PrOgraMMing

During this phase a space program is expected to be incorporated into the

BIM. The creation of this data can support the design team in program vali-

dation, program reporting and tracking. A space programming application

may be used to achieve this requirement where customized reports may

be produced. All program data in support of the space program regardless

of where it derived shall be updated and maintained in the BIM.

The following shall be derived automatically from the BIM:

Program Function

Room Name

Room Number

Assignable Areas measured to inside face of wall objects and

designated boundaries of areas

Gross Area measured to the outside face of wall objects

PHase PLanning

Design phases should be deﬁned at this stage and shall be consistent

throughout all the dierent project models for proper coordination. Design

phases shall be implemented using a tool or a parameter to deﬁne or

categorize all elements contained within the BIM.

PreLiMinarY cOsT esTiMaTe (sQUare FOOTage)

Extract square foot information directly from the BIM integrated tools to

support comparative costs analysis of options studied. Outputs shall be

converted to spreadsheets and submitted as part of the design solution

justiﬁcation at end of this phase.

A summary of construction cost per trade is expected at this stage

Design reVieW

A detailed Design Review is critical at this stage since the Model will be de-

veloped further once it’s moved to the next stage. Program evaluation and

layout design, lighting, acoustics, textures and colors should be considered

as part of the review.

Part Three Submission and Deliverables / Submission Requirements 25

PreLiMinarY cLasH DeTecTiOn

Preliminary coordination at this stage should, at a minimum, be performed

within the major systems on these pairs of elements:

Architectural Systems vs. Structural Systems

Architectural Systems vs. Mechanical Systems

Architectural Systems vs. Electrical Systems

Structural Systems vs. Mechanical Systems

Structural Systems vs. Electrical Systems

Mechanical Systems vs. Electrical Systems

DESIGN DEVELOPMENT

Design Development must align with the Third Level of Development (LOD

300) as described in this Manual, and the Design Development section of

the DDC Design Consultant Guide.

All systems shall be deﬁned at this stage with the appropriate shapes and

sizes along with the proper documentation to support the analysis. Listed

below are deﬁned systems with the most common elements deﬁned for

each. The list is not intended to be all inclusive, but rather a foundation to

build upon.

Design aUTHOring – MODeLs

The Model will evolve from the previous phase and shall include better

deﬁned elements to ensure the appropriate eort within this phase. Refer

to the Object Requirements in the appendix for a detailed description of

each of these Objects.

Additional elements and objects may need to be added from the previous

stage Design Authoring - Preliminary Model to represent new features of

the project.

sUsTainaBiLiTY (LeeD) anaLYsis

This model shall be detailed and ﬁnalized enough to use as an indicator

of approximate building energy use after occupancy. This model shall also

serve as a baseline for future comparisons.

Custom parameters may be created to associate LEED information to the

dierent elements within the BIM.

This model shall be used as a tool to facilitate post-occupancy commission-

ing should discrepancies between modeled and actual energy use arise.

cOsT esTiMaTiOn

All elements or objects included within the Model should be automatically

extracted and quantiﬁed for estimating purposes.

cLasH DeTecTiOn

Coordination at this stage should be performed within the major and minor

systems based on these pair of elements:

Architectural Systems vs. Structural Systems

Architectural Systems vs. HVAC Systems

Architectural Systems vs. Plumbing Systems

Architectural Systems vs. Fire Protection Systems

Architectural Systems vs. Electrical Systems

Architectural Systems vs. Electronics Systems

Structural Systems vs. HVAC Systems

Structural Systems vs. Plumbing Systems

Structural Systems vs. Fire Protection Systems

Structural Systems vs. Electrical Systems

Structural Systems vs. Electronics Systems

HVAC Systems vs. Plumbing Systems

Part Three Submission and Deliverables / Submission Requirements 26

HVAC Systems vs. Fire Protection Systems

HVAC Systems vs. Electrical Systems

HVAC Systems vs. Electronics Systems

Plumbing Systems vs. Fire Protection Systems

Plumbing Systems vs. Electrical Systems

Plumbing Systems vs. Electronics Systems

Fire Protection Systems vs. Electrical Systems

Fire Protection Systems vs. Electronics Systems

PrOgraM VaLiDaTiOn

Program requirements should be compared and validated with the actual de-

sign solution through reports and charts generated automatically from the BIM.

CONSTRUCTION DOCUMENTS

Construction Documents should align with the Fourth Level of Develop-

ment (LOD 400) as described in this Manual. This model should include

the current design models from each phase through the end of Design

Development.

Design aUTHOring - FinaL MODeL

The Model will keep evolving from the previous phase and shall include

construction speciﬁcations along with constructions details including text,

dimensions, tags, notes, materials, colors and any other description or

characteristic required for construction.

As previously stated, the integrity of the Model should not be compromised

to reﬂect the 2D representation of 3D elements contained within the BIM.

3D cOOrDinaTiOn VaLiDaTiOn

3D coordination validation should evolve from the previous phase. All

conﬂicts previously found should be resolved at the end of this phase by

running a ﬁnal Clash Detection Report to validate the absence of Conﬂicts.

cOsT esTiMaTiOn

Quantity takeos should be automatically extracted from the model. Cost

should be validated by integrating applications with Quantity tools or

exported as spreadsheets for traditional methods.

sUsTainaBiLiTY (LeeD) rePOrTing

All LEED documentation and reports should be completed at this stage

and should be ready to be submitted as part of the project deliverables.

These documents and reports will use the previously deﬁned custom pa-

rameters in which LEED information have been associated to the dierent

elements within the BIM.

BID, AWARD AND REGISTRATION

Services during BID, Award and Registeration should align with the Fourth

Level of Development (LOD 400) as described in this manual, and the

BID Award and Registration section of the DDC Design Consultant Guide.

After completion and approval of the 100% construction document phase,

design intent BIM’s shall be archived and provided to the DDC. (see de-

liverables section of this guide) All deliverables including Archived BIM’s,

hardcopies, dwf’s and pdf’s derived from such BIM’s shall be indentical to

the desired design conditions at the time bids are received.

During the Bidding phases through Award and Registration the model may

be provided for informational purposes. Refer to the project speciﬁc RFP

and the DDC BEP for BIM use and model availablility.

Part Three Submission and Deliverables / Submission Requirements 27

SERVICES DURING CONSTRUCTION

Services during Construction should align with the Fifth Level of Devel-

opment (LOD 500) as described in this Manual, and the Services during

construction section of the DDC Design Consultant Guide. The design BIM

will be provided by the owner in its native authored format along with an

assembled BIM in a format appropriate for collaboration (Navisworks or

equal see deliverables section of this guide). The Construction manager or

the general construction contractor shall use the Design BIM as a basis for

creating a construction model to achieve the desired BIM uses outlined in

this section.

cOnsTrUcTiOn sYsTeM Design

The BIM shall be used to better understand how complex element or

elements of the project can get built on the site. These virtual mock-ups

can be used to replace the on-site mock-ups and facilitate or expedite

construction through tools that will allow linking the BIM sequencing,

take os, etc.

These virtual mock-ups will enable the trial of alternate options before

construction begins allowing the contractor to select the best one that ﬁts

the project needs.

PHase PLanning

Phases during Construction should be deﬁned after the Design phase is

completed and before the project is handed over for construction. Con-

struction phases shall be implemented to improve constructability through

the use of tools that will allow linking the BIM to a construction scheduling

appllcation, such as Primavera and/or Microsoft Projects.

The BIM shall be used to analyze and perform construction sequencing

to avoid conﬂicts once construction starts and therefore improve the

constructability process.

scHeDULing

During construction the BIM shall be utilized to facilitate activity sched-

uling. Prior to construction the BIM shall be linked to the schedule by

the CM and or GC for the purpose of 4d scheduling. Using applicable

tools and applications elements or parts of the BIM shall be linked to the

speciﬁc task in the schedule for the purpose of informing critical plan-

ning decisions and construction methods, site space utilization, resource

allocation, activity sequencing, visualization and communication. Primary

elements of the model listed below shall be linked to the schedule to

achieve desired results.

Structural system—structural framing components including

foundations, grade beams, columns, load bearing walls, ﬂoor and

roof decks and support.

Exterior building envelope—stud wall, exterior panels and assem-

blies, curtain walls, openings, and glazing.

Interior partitions—main interior walls, plumbing walls, and

wall assemblies.

Mechanical systems—main ductwork and equipment, separated

by ﬂoors.

Roof systems—roof assemblies, major equipment, and openings.

Site work—excavation work, footings, foundations, and

slabs on grade.

Plumbing systems—main connection lines from site and main

plumbing lines.

Additional considerations shall be made to speciﬁc construction

activities and task where detailed construction planning is required

such as virtual test installations and logistics planning. Linking the

model to the schedule in these instances shall improve coordination

Part Three Submission and Deliverables / Submissions & Deliverables28

and parallel activity workﬂows reducing conﬂicts and delays by loca-

tion and resource unavailability.

3D cOOrDinaTiOn

3D coordination is an on-going process which should start at the

early stages of the Design phase and evolve and muture as the project

progresses.

3D coordination will also happen during construction to assist and to sup-

port the creation of the “as built” model once construction is completed so

a conﬂict-free model can be provided for the operations and maintenance

of the building.

DigiTaL FaBricaTiOn

The BIM can be used to extract information directly from it to streamline

the pre-fabrication and/or fabrication of elements such as pipes, ducts,

structural members, etc. A list of intended objects that will be part of this

eort shall be deﬁned at the Construction phase so they can be modeled

using the characteristic deﬁned within their construction speciﬁcations.

recOrD MODeLing

As construction progresses, the BIM shall be updated if changes occur

on site due to conﬂicts and/or chagnes on scope, this way at the comple-

tion of the project the BIM becomes the “as built” and can be leveraged

beyond construction.

asseT ManageMenT

The “as built” BIM shall be leveraged to manage and operate the building

once construction is completed, to that extent, the BIM shall include ﬁelds

(parameters) to support this eort.

These ﬁelds may vary from project to project and may be dierent de-

pending on the type of project as well, therefore, they should be deﬁned

and incorporated within the BIM at the Construction phase with the input

of the people responsible for maintenance and operations.

Submissions & Deliverables

NOMENCLATURE

This section establishes the basic naming conventions and standards

required to be used when developing a project using BIM technology

for DDC.

DISCIPLINE CODES

All model ﬁles, content and support ﬁles shall be preﬁxed with the appro-

priate discipline code. Discipline codes in use by the DDC are represented

in the table below.

Discipline Name Designator Code

Architectural A

Civil C

Electrical E

Fire Protection FP

Landscape L

Part Three Submission and Deliverables / Submissions & Deliverables 29

Mechanical M

Plumbing P

Structural S

PROJECT IDENTIFICATION NUMBER

Each project within the DDC is assigned a unique FMS Project identiﬁer.

At the inception of all projects the FMS Project Identiﬁer should be ob-

tained to support the proper naming of model ﬁles, content and other

support ﬁles.

FILE NAMING

All electronic project information should be named following the DDC-

BIM guidelines naming conventions described within this section. This

will ensure that projects can be accurately maintained during production,

archived as a single project at each milestone and retrieved for future use.

MODeL FiLes

Model Files should be named beginning with the FMS Project Identiﬁcation

Number followed by a dash, and a Discipline Code.

The ﬁlename should take the form of:

FMSID-D.format

Item Description

FMSID FMS Project Identiﬁcation Number

D Discipline Code

As an example, an Architecture Model File would be named as follows:

LQ471BNA-A.format

NOTE

If a model needs to be broken down further more based on the project

speciﬁcs or complexity, a dash and a 2 letter designation will need to be

appended at the end of the ﬁle name.

PLOTsHeeT FiLes (DWFX/PDF)

Plotsheet ﬁles should be generated out of the Models in DWFX and/or PDF

format and should be named beginning with the FMS/Project Identiﬁcation

Number, a dash, a Discipline Code, a dash, the Discipline Designation Code

(if applicable) followed by the Sheet Number range, a dash, and a two-digit

Revision Decimal Number.

The ﬁlename should take the form of:

FMSID–D-DC001_###-RN.dwfx

FMSID–D-DC001_###-RN.pdf

Item Description

FMSID FMS Project Identiﬁcation Number

D Discipline Code

DC Discipline Designation Code (if applicable)

001_ ### First Sheet Number to Last Sheet Number (Three-digit Number)

RN Revision Number (Two-digit Number)

Part Three Submission and Deliverables / Submissions & Deliverables30

DisciPLine DesignaTOr cODes

Discipline Name Designator Code

Architectural A

General G

Title/Coversheet T

Antenna ANT

Hazardous Materials H

Landscape L

Civil C

Mechanical M

Electrical E

Plumbing P

Borings/Geotechnical B

Builders Pavement Plan BBP

Curb Cut CC

Demolition DM

Energy Code Compliance EN

Construction Related Equipment EQ

Fire Suppression Systems F

Fire Alarms FA

Foundations FO

Fire Protection FP

Structural S

Stand Pipe SD

Signs SG

Excavation SOE

Sprinkler SP

Sprinkler & Standpipe SP/SD

Site Safety SSP

Other Disciplines X

Zoning Z

As an example, an Inter-Disciplinary Coordination File is being created for

a Plumbing project with Project identiﬁcation Number of LQ471BNA for its

revision 7. The ﬁle should be named as follows:

LQ471BNA -P-07.nwd

sHeeT nUMBer

The Sheet Number refers to the three-digit number that appears right after

the Discipline Designator Code.

reVisiOn DeciMaL nUMBer

The Revision Decimal Number refers to the two-digit number that appears

right after the Sheet Number.

Part Three Submission and Deliverables / Submissions & Deliverables 31

reVisiOns

When creating Plotsheet in DWFX or PDF format containing revisions, only

consecutive sheets can be grouped together within the electronic ﬁles.

As an example, the Structural discipline is creating a revision 7 of sheets

001 through 007 and sheets 011 and 013. Three ﬁles should be named

as follows:

LQ471BNA-S-001_007-07

LQ471BNA-S-011-07

LQ471BNA-S-013-07

inTer-DisciPLinarY cOOrDinaTiOn FiLes (nWD)

Inter-Disciplinary Coordination Files should be generated out of the Models

and saved as NavisWorks ﬁles (NWD). Similar to model ﬁles, coordination

ﬁles should be named beginning with the FMS/Project Identiﬁcation Num-

ber, a dash, a Discipline Code and a two-digit Revision Decimal Number.

The ﬁlename should take the form of:

FMSID–D- RN.nwd

Item Description

FMSID FMS/Project Identiﬁcation Number

D Discipline Code

RN Revision Number (Two-digit Number)

As an example, an Inter-Disciplinary Coordination File is being created for

a Plumbing project with Project identiﬁcation Number of LQ471BNA for its

revision 7. The ﬁle should be named as follows:

LQ471BNA -P-07.nwd

OBJecT naMing

Objects within the Model should be named beginning with the Object

Category, a space, a dash, a space, the Type, a space, a dash, a space, a

Subtype, a space, a dash, a space, the Manufacturer Name, a space, a dash,

a space and an optional User Description.

<Object Category>-<Type>-<Subtype>-<Manufacturer>-<Description>.

format

The Type, Subtype and Manufacturer ﬁelds should be used as needed.

The following is a list of ﬁve examples:

Window - Double Hung - Andersen - 400 Series - Arch Top

Plumbing Fixtures - Sink - Oval - Generic - Under Counter

Mechanical Equipment - Air Handling Unit - Vertical Packaged -

Sierra - Roof Top

Structural Framing - Wood - Lumber

Structural Foundation - Concrete - Rectangular

NOTE:

A list of Objects is provided in the Appendix. Object Requirements should

match the Object category ﬁeld.

TYPes WiTHin OBJecTs

TYPES WITHIN OBJECTS

Types within the Objects should indicate the key dierences or variations

between the dierent options and their names might take one of the

following forms:

Part Three Submission and Deliverables / Submissions & Deliverables32

The following is a list of ﬁve examples of the types within the Objects

described above:

Window - Double Hung - Andersen - 400 Series - Archtop

• Model430

• Model470

Plumbing Fixtures - Sink - Oval - Generic - Undercounter

• 10”

• 12”

Mechanical Equipment - Air Handling Unit - Vertical Packaged -

Sierra - Roof Top

• 2400CFM

• 3000CFM

• 4000CFM

Structural Framing - Wood - Lumber

• 6”x8”

• 6”x10”

• 6”x12”

Structural Foundation - Concrete - Rectangular

• 16”x32”x8”

• 20”x36”x10”

• 24”x40”x12”

DELIVERABLES

At each submission, native electronic copies and static versions of the

model will be required. This is in addition to necessary hardcopy submis-

sions to support legacy processes.

ELECTRONIC

The electronic version of the BIM is required for each milestone from Pre-

Schematic Design Model through Services During Construction, and should

be provided in their Native Format. In addition to that, below is a descrip-

tion of additional required ﬁle formats:

3D MODeL FiLes reQUireD:

NWD: Autodesk NavisWorks Master ﬁles (containing all

Model geometry)

3D DWF: Autodesk 3D Design WEB Format ﬁles

2D MODeL FiLes reQUireD:

2D DWF: Autodesk 2D Design WEB Format ﬁles

PDF: Adobe Acrobat ﬁles

HARDCOPY

Final hard copies of drawings in full size, shall be 24”X36” unless otherwise

approved and must be submitted on reproducible mylar plots using the

DDC Title Sheets and Contract Borders as identiﬁed in the DDC Design

Consultant Guide.

Refer to DDC – Design Consultant Guide for Submission Criteria.

Part Four Glossary and Appendix / Deﬁnitions 33

PART FOUR GLOSSARY AND APPENDIX

Deﬁnitions

3D MODEL

A three-dimensional representation of a building or structure generated

out of a CAD or BIM application

BEP

BIM Execution Plan (BEP) is an organized, documented approach to pro-

viding a strategy for all parties involved in contributing to model, informa-

tion, analysis or consumption of a project utilizing the BIM process.

BIM

Building Information Modeling (BIM) is a process for managing a facility

through its life-cycle. This extends from design to demolition. Typically, BIM

starts with a three dimensional model with increasing levels of detail as to

the functions it supports.

BUILDING INFORMATION MODEL

A Building Information Model (BIM) is a digital representation of the physi-

cal and functional characteristics of a building or structure

CAD/BIM MANAGER

The System Administrator for all CAD & BIM projects responsible for the

management of all CAD & BIM data and processes.

DWF

A highly compressed non-editable vector ﬁle format created out of CAD/

BIM applications. A DWF ﬁle can represent sheets for plotting purposes

(2D DWF) or the entire 3D Model (3D DWF) for visualization or estimating

purposes. DWF is short for Design Web Format, created by Autodesk.

DWG

DWG (Drawing) is a binary ﬁle system licensed by Autodesk for the pur-

pose of storing two and three dimensional data and metadata. DWG is a

native ﬁle format for AutoCAD.

IPD

Integrated Project Delivery (IPD) is a collaboration of all parties, systems

and practices to optimize and maximize project success. Deﬁned by the

American Institute of Architects (AIA), IPD is typically applied to design

and construction projects.

NOTE:

True IPD employs various constructs certain of which the city is precluded

from using by state law and city rules. (such as the use of multi-party con-

tracts, and proﬁt sharing) DDC’s integrated delivery approach leverages

many aspects of IPD that are allowed by law. (such as co-location and BIM)

Part Four Glossary and Appendix / Deﬁnitions34

LEED

Leadership in Energy and Environmental Design (LEED) is a rating system

for the design, construction and operation of buildings or facilities. Devel-

oped by the U.S. Green Building Council (USGBC), LEED provides owners

and operators a guide for practical measures for sustainable practices.

LOD

Level of Development (LOD) describes, through ﬁve categories, the com-

pleteness of elements in a Building Information Model. Completeness will

range from geometric detail to element information.

NAD

The North American Datum (NAD) is the ocial horizontal datum used for

the primary geodetic network in North America. The latest published net-

work is NAD83; however, the prior version NAD27 is still widely used. Each

system is based on a separate set of measurements but is still geodetic

reference systems.

NWD

An NWD ﬁle is a NavisWorks format that contains all model geometry-spe-

ciﬁc data. You can think of an NWD ﬁle as a snapshot of the current state

of the model. NWD ﬁles are very small, as they compress the data by up to

80% of the original size.

PDF

An open standard for document exchange independent of authoring

software, PDF is short for Portable Document Format, created by Adobe

Systems.

VDC

Virtual Design and Construction (VDC) is the use of design models, and

project information to apply construction processes in a virtual environ-

ment to reduce time, cost and ensure design intent.

Part Four Glossary and Appendix / DDC BIM Execution Plan Template 35

DDC BIM Execution Plan

(BEP) Template

This section identiﬁes key members on the project as well as deﬁnes the master

plan and project speciﬁc objectives, its phases and sequence along with the com-

munication and interaction among the dierent disciplines involved and

their projects.

KEY MEMBERS

This section identiﬁes the contact person responsible for BIM coordination

purposes only.

Discipline/ Trade Consultant Contact Person

FILE SHARING

Deﬁne within this section the methods for distribution of project information.

Project Site Location:

Administrator

MODEL COORDINATION

Deﬁne the origin point and coordinate system to be used

Model Origin Point

Model Coordinate System

PROJECT PHASES & SEQUENCE

This section identiﬁes the project phases & sequence to understand

when each project starts and its impact to other projects and the overall

master plan.

Milestone Percent Start End

Pre-Schematic

Schematic

Design Development

Construction Documents

Part Four Glossary and Appendix / Object Requirements36

PROJECT MILESTONES

Within this section deﬁne the project milestones, deliverables, format

and naming

Milestone Deliverable Format Name

Pre-Schematic

Schematic

Design Development

Construction Documents

PROJECT OBJECTIVES

This section identiﬁes the primary objectives of the overall plan along

with the project speciﬁc objectives.

Objective Description

Object Requirements

air TerMinaLs

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions N/A

Level N/A

System Classiﬁcation N/A

System Type N/A

System Name N/A

Pressure Drop N/A

Flow N/A

Material N/A

Mark N/A

Phase Created N/A

Phase Demolished N/A

Part Four Glossary and Appendix / Object Requirements 37

caBLe TraYs

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions N/A

Level N/A

Service Type N/A

Material N/A

Mark N/A

Phase Created N/A

Phase Demolished N/A

caseWOrK

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions N/A

Level N/A

Material N/A

Mark N/A

Phase Created N/A

Phase Demolished N/A

ceiLings

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions N/A

Level N/A

Height Oset from Level N/A

Room Bounding N/A

Material N/A

Mark N/A

Phase Created N/A

Phase Demolished N/A

Part Four Glossary and Appendix / Object Requirements38

cOLUMns

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions

Base Level

Base Oset

Top Level

Top Oset

Room Bounding

Material

Mark

Phase Created

Phase Demolished

cOMMUnicaTiOn DeVices

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions N/A

Level N/A

Elevation N/A

Panel N/A

Circuit Number N/A

Electrical Data N/A

Material N/A

Mark N/A

Phase Created N/A

Phase Demolished N/A

cOnDUiTs

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions

Level

Diameter

Trade Size

Service Type

Material

Mark

Phase Created

Phase Demolished

Part Four Glossary and Appendix / Object Requirements 39

cUrTain WaLLs

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions

Base Constraint

Base Oset

Top Constraint

Top Oset

Height

Room Bounding

Structural

Structural Usage

Material

Mark

Phase Created

Phase Demolished

DaTa DeVices

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions N/A

Level N/A

Elevation N/A

Panel N/A

Circuit Number N/A

Electrical Data N/A

Material N/A

Mark N/A

Phase Created N/A

Phase Demolished N/A

DOOrs

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions N/A

Level N/A

Sill Height N /A

Material N/A

Mark N/A

Phase Created N/A

Phase Demolished N/A

Part Four Glossary and Appendix / Object Requirements40

DUcTs

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions

Level

Oset

Start Oset

End Oset

System Classiﬁcation

System Type

System Name

System Abbreviation

Material

Mark

Phase Created

Phase Demolished

eLecTricaL eQUiPMenT

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions

Level

Elevation

Panel Name

Mounting

Enclosure

Breakers

Mains

Circuit Naming

Circuit Preﬁx Separator

Circuit Preﬁx

Short Circuit Rating

Distribution System

Feed

Material

Mark

Phase Created

Phase Demolished

Part Four Glossary and Appendix / Object Requirements 41

eLecTricaL FiXTUres

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions N/A

Level N/A

Elevation N/A

Switch ID N/A

Panel N/A

Circuit Number N/A

Material N/A

Mark N/A

Phase Created N/A

Phase Demolished N/A

Fire aLarM DeVices

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions N/A

Level N/A

Elevation N/A

Panel N/A

Circuit Number N/A

Electrical Data N/A

Material N/A

Mark N/A

Phase Created N/A

Phase Demolished N/A

Part Four Glossary and Appendix / Object Requirements42

FLeX DUcTs

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions

Level

Oset

Start Oset

End Oset

System Classiﬁcation

System Type

System Name

System Abbreviation

Material

Mark

Phase Created

Phase Demolished

FLeX PiPes

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions

Level

Oset

Start Oset

End Oset

System Classiﬁcation

System Type

System Name

System Abbreviation

Material

Mark

Phase Created

Phase Demolished

Part Four Glossary and Appendix / Object Requirements 43

FLOOrs

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions

Level

Height Oset from Level

Room Bounding

Structural

Material

Mark

Phase Created

Phase Demolished

FUrniTUre

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions N/A

Level N/A

Material N/A

Mark N/A

Phase Created N/A

Phase Demolished N/A

FUrniTUre sYsTeMs

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions N/A

Level N/A

Material N/A

Mark N/A

Phase Created N/A

Phase Demolished N/A

Part Four Glossary and Appendix / Object Requirements44

LigHTing DeVices

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions N/A

Level N/A

Elevation N/A

Switch Voltage N/A

Switch ID N/A

Panel N/A

Circuit Number N/A

Material N/A

Mark N/A

Phase Created N/A

Phase Demolished N/A

LigHTing FiXTUres

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions N/A

Level N/A

Elevation N/A

Switch ID N/A

Panel N/A

Circuit Number N/A

Material N/A

Mark N/A

Phase Created N/A

Phase Demolished N/A

Part Four Glossary and Appendix / Object Requirements 45

MecHanicaL eQUiPMenT

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions

Level

Panel

Circuit Number

Air Flow

Drain Flow

Air Pressure Drop

System Classiﬁcation N/A

System Name N/A

Material N/A

Mark N/A

Phase Created N/A

Phase Demolished N/A

PiPes

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions

Level

Start Oset

End Oset

Slope

System Classiﬁcation

System Type

System Name

System Abbreviation

Material

Mark

Phase Created

Phase Demolished

Part Four Glossary and Appendix / Object Requirements46

PLUMBing FiXTUres

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions

Level

Flow Pressure

System Classiﬁcation

System Type

System Name

System Abbreviation

Material

Mark

Phase Created

Phase Demolished

raiLings

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions N/A

Base Level N/A

Base Oset N/A

Material N/A

Mark N/A

Phase Created N/A

Phase Demolished N/A

raMPs

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions

Base Level

Base Oset

Top Level

Top Oset

Width

Material

Mark

Phase Created

Phase Demolished

Part Four Glossary and Appendix / Object Requirements 47

rOOFs

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions

Base Level

Base Oset from Level

Room Bounding

Slope

Thickness

Material

Mark

Phase Created

Phase Demolished

rOOMs

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Level

Upper Limit

Limit Oset

Base Oset

Number

Name

Occupancy

Department

Base Finish

Ceiling Finish

Wall Finish

Floor Finish

Occupant

Material

Mark

Phase Created

Phase Demolished

Part Four Glossary and Appendix / Object Requirements48

secUriTY DeVices

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions N/A

Level N/A

Panel N/A

Circuit Number N/A

Electrical Data N/A

Material N/A

Mark N/A

Phase Created N/A

Phase Demolished N/A

Part Four Glossary and Appendix / Object Requirements 49

sPaces

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Level

Upper Limit

Limit Oset

Base Oset

Number

Name

Unbounded High

Lighting Calculation

Ceiling Reﬂectance

Wall Reﬂectance

Floor Reﬂectance

Design HVAC Loads

Design Other Loads

Supply Air Flow

Return Air Flow

Exhaust Air Flow

Zone

Plenum

Design Heating Loads

Design Cooling Loads

Electrical Loads

Occupancy

Condition Type

Space Type

Construction Type

People

Mark

Phase Created

Phase Demolished

Part Four Glossary and Appendix / Object Requirements50

sPrinKLers

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions N/A

Level N/A

Elevation N/A

System Classiﬁcation N/A

System Type N/A

System Name N/A

System Abbreviation N/A

Edited by N/A

Pressure Drop N/A

Flow N/A

Material N/A

Mark N/A

Phase Created N/A

Phase Demolished N/A

sTairs

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions

Base Level

Base Oset

Top Level

Top Oset

Width

Number of Risers

Riser Height

Tread Depth

Material

Mark

Phase Created

Phase Demolished

Part Four Glossary and Appendix / Object Requirements 51

sTrUcTUraL BeaM sYsTeMs

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions

Level

Layout Rule

Fixed Spacing

Centerline Spacing

Justiﬁcation

Beam Type

Material

Mark

Phase Created

Phase Demolished

sTrUcTUraL cOLUMns

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions

Base Level

Base Oset

Top Level

Top Oset

Room Bounding

Style

Material

Mark

Phase Created

Phase Demolished

sTrUcTUraL FOUnDaTiOns

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions

Level

Material

Mark

Phase Created

Phase Demolished

Part Four Glossary and Appendix / Object Requirements52

sTrUcTUraL FraMing

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions

Level

Start Level Oset

End Level Oset

Lateral Justiﬁcation

Cross Section Rotation

Structural Usage

Material

Mark

Phase Created

Phase Demolished

sTrUcTUraL sTiFFeners

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions N/A

Level N/A

Oset N/A

Material N/A

Mark N/A

Phase Created N/A

Phase Demolished N/A

Part Four Glossary and Appendix / Object Requirements 53

sTrUcTUraL TrUsses

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions

Level

Start Level Oset

End Level Oset

Top Chord

Bottom Chord

Bearing Chord

Rotation Angle

Bearing Vertical Justiﬁcation

Truss Height

Non-bearing Oset

Material

Mark

Phase Created

Phase Demolished

TeLePHOne DeVices

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions N/A

Level N/A

Elevation N/A

Material N/A

Mark N/A

Phase Created N/A

Phase Demolished N/A

Part Four Glossary and Appendix / Object Requirements54

WaLLs

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions

Base Constraint

Base Oset

Top Constraint

Top Oset

Height

Room Bounding

Structural

Structural Usage

Material

Mark

Phase Created

Phase Demolished

WinDOWs

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Type/Dimensions N/A

Level N/A

Sill Height N/A

Material N/A

Mark N/A

Phase Created N/A

Phase Demolished N/A

ZOnes

Requirements LOD 100 LOD 200 LOD 300 LOD 400

Level

Service Type

Coil Bypass

Cooling Information

Heating Information

Outdoor Air Information

Part Four Glossary and Appendix / Updates and Revisions 55

Updates and Revisions

The dynamic nature of BIM technology dictates that this document will change

over time. Changes to this document will be made as needed for the successful

implementation of BIM on DDC projects as determined by the DDC BIM manager.

Changes may be made based on errors and omissions, as well as to enhance or

update the guidelines based on changes in the BIM process. This document will

evolve and continue to be reviewed. Revisions and updates to these guidelines

may be submitted in writing to the DDC BIM manager.

Contact Information

Questions regarding the DDC - BIM Guidelines provided within this Manual should

be directed to:

Saﬁy Abdur-Rahman

BIM Manager

NYC Department of Design + Construction

30-30 Thomson Ave.

Long Island City, NY 11101

Cover image:

New York City Police Department, Queens

Perkins + Will with Michael Fieldman Architects

NewLayout7.19.12 Bim Guide

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