NJ Home   Services A to Z   Departments/Agencies FAQs
Great Seal of the State of New Jersey  
Site Index  |  Search: NJ Home   NJDOT

    CADD Support


Metric CADD Documentation

General Information

NJDOT’s Metric Computer Aided Design and Drafting (CADD) information and resource files for Microstation are available for downloading from this site. We have tried to make as much information available as possible and will continue to add and update items in the future. Please check the revision dates on all files frequently to ensure you are working with the most current versions.

MicroStation CADD Support Files

Cell Libraries

A "cell" in MicroStation is a group of graphical elements that can be manipulated as a single entity. The use of cells enhances CADD productivity and helps promote CADD standardization. The Department’s Cells are stored and maintained in cell libraries, which have been broken down by discipline.

  • roadway.cel - Master Roadway Cell Library
  • roadsigns.cel - Master Roadway Sign Cell Library
  • brmetric.cel - Master Structures Cell Library
  • lametric.cel - Master Landscape Cell Library
  • Electrical Cell Library - See Traffic Signal & Safety

The Department’s cell libraries are available for download as a bundled package in ZIP format on the CADD Downloads (Metric Units) page of the CADD Support website.

Color Table

Standard colors are specified to ensure consistency and to enable users to easily identify plan elements in shared files. Elements are assigned a color "number" which MicroStation reads to determine the correct color to display for that color setting.

The Department’s master color table "roads.clr" is available for download on the CADD Downloads (Metric Units) page of the CADD Support website.

Font Resource File

Contrasting text styles (fonts) and sizes are used within a drawing to designate different types of information (i.e. existing versus proposed). The Department’s font resource file is made up of a combination of Bit Stream fonts, symbol fonts and modified MicroStation font cell type fonts.

The Department’s font resource file "roadfont.rsc" is available for download on the CADD Downloads (Metric Units) page of the CADD Support website.

IPLOT Pen Tables

The Department uses IPLOT, a Bentley Systems Inc. product, to produce final plan sets. Individual plotting routines (pen tables) are used to create the final appearance of a MicroStation plot. Pen tables have the ability to change the "look" of individual elements or groups of elements at plot time to achieve the desired plan presentation without affecting the original design file element.

The IPLOT pen tables are not available for download from this site.There are approximately 25 pen tables that were written to support the various aspects of in-house design and they may not give an outside user the desired results unless the entire NJDOT CADD system format, set-up and configuration is followed. If you have questions and/or would like the latest copies of our IPLOT pen tables, please contact the " CADD Support Unit ".

Line Style Resource File

For efficiency reasons the Department has added its own user defined lines styles (UDL) to the basic MicroStation line style resource file. These UDLs are graphical representations of features like guide rail, ROW lines, curb, etc. and can be drawn and manipulated as any normal linear element. 

When an element is drawn in MicroStation, the definition of the line style is not contained within the design file, only the line style name / number. When the design file is opened, the line style resource file being used at the time governs the display.

The Department’s line style resource file "roadlines.rsc " is available for download on the CADD Downloads (Metric Units) page of the CADD Support website.

Seed Files

MicroStation uses a "seed" file concept to create new design files. These seed files are templates in which the standard file parameters (working units, global origin, view attributes, color table, text settings, coordinate readout, etc.) are set to the Department’s standards. The Department maintains two seed files, one for the creation of 2D files and one for 3D InRoads applications.

  • 2D_seed.dgn - Master Roadway 2D Seed File
  • seed-3D.dgn - Master Engineering 3D Seed File
  • Electrical Seed - See Traffic Signal & Safety

The Department’s "Seed Files" are available for download as a bundled package in ZIP format on the CADD Downloads (Metric Units) page of the CADD Support website.

Standard Details Metric

The Department’s Standard Details are broken out into "sections" by discipline. When a standard detail is revised, there will be a "revision date" and adjacent to the detail number.

Access for downloading the standard details is from the CADD Downloads (Metric Units) page of the CADD Support website. The MicroStation ".dgn" versions of the standard details can be downloaded individually or an entire "section" can be downloaded as a complete set in a ZIPed format. Each "section" can also be downloaded in Adobe PDF format.

CADD Standards Manual Metric

The purpose of this manual is to document the Department’s Metric CADD standards in an effort to create uniformity for the roadway/ structure design and drafting performed for the N.J. Department of Transportation. This manual is neither a textbook nor a substitute for engineering or drafting knowledge, experience, or judgment. These standards are neither static nor all-inclusive and thus will be revised as needed.

The information in this document is based on using MicroStation ".dgn" format, which is a product of Bentley Systems, Inc. It includes information on our Working Units, Global Origin, Level Structure, File Names, File Content, Line Styles, Line Weights, Fonts, Cells and Color Table as used by the Department.

The NJDOT CADD Standards Manual is available for download in Adobe PDF format on the CADD Downloads (Metric Units) page of the CADD Support website.

 
Go to NJDOT home page Contact Us | Privacy Notice | Legal Statement | Accessibility Statement  Go to State of New Jersey home page
  department: home | about | NJ commuter | in the works | business | engineering | freight, air & water | capital | community | data | links | index
  statewide: NJ Home | about NJ | business | government | state services A to Z | departments

  Copyright © State of New Jersey, 2002-2009
  Department of Transportation
  P.O. Box 600
  Trenton, NJ 08625-0600
OPRA - open public records act

  Last Updated:  August 22, 2005