This document is the METRA Engineering CADD Manual written by Chandra Mahalingam, the CADD System Administrator of Metra Engineering. The manual introduces Metra's CADD standards, drawing formats, drawing numbers, drawing borders, titles and title sheets, drafting requirements, libraries, level assignments and standard details, drawing development and revisions, engineering digitization and delivery.
The document serves as a reference guide for the preparation of all drawings used in the planning, design, construction, and maintenance of Metra facilities. It establishes uniformity and compatibility among drawings prepared by User Departments, Third Party Contractors, and sub-consultants.
Key standards covered include drawing formats (ANSI sizes), file naming conventions using specific district codes and mile posts, CADD levels, line colors, and line styles within Bentley Microstation V8i. The manual also details project deliverables, revision history, and discipline designation codes.
| Software Version | Bentley Microstation Version V8i |
|---|---|
| Scanning Software | Descartes |
| Image Format for Editing | TIFF format |
Metra Engineering uses Bentley Microstation Version V8i.
Scanned images submitted for editing must be in TIFF format.
Color 0 (Black) shall be used for the general body of the drawing.