Transportation Network Building Using a CAD Interface

by William A. Martin, Jr., Barton-Aschman Associates Inc, Barton-Aschman Associates Inc,
Robert M. Stribling, Barton-Aschman Associates Inc, Barton-Aschman Associates Inc,

Document Type: Proceeding Paper

Part of: Microcomputer Applications in Transportation II


This paper illustrates how Barton-Aschman Associates, Inc, has made use of AutoCAD(TRADEMARK) on the microcomputer to digitize an existing highway network and to create a new network from scratch. AutoCAD is a microcomputer based Computer Aided Drafting program. While AutoCAD is a very powerful program, use of it for digitizing highway networks only requires use of a few functions; drawing lines, drawing text, and outputting a DXF or drawing interchange file that is in ASCII text format. Other functions such as SNAP and BREAK line are used as well. The two most useful features of AutoCAD is the ability to draw in different layers and to produce an ASCII text file.

Subject Headings: Computer aided design | Highway engineering | Transportation networks | Computer software | Computer networks | Interchanges | Travel demand | Forecasting

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