What's new in signal timing optimization models

Journal Article · Mon Apr 01 04:00:00 EST 1991 · ITE (Institute of Transportation Engineers) Journal; (USA)

OSTI ID:5569736

Wilbur, A

Computer models to develop optimized signal timing plans have been available for almost two decades. Programs such as TRANSYT-7F and PASSER-II were originally developed for mainframe computers and were often difficult and complicated to use. Data were based on card images, and creating an error-free input file consumed a significant amount of time and effort. Interpreting the resulting pages of output was also time consuming and cumbersome. Over the years, these optimization models have evolved to take advantage of the advances in microcomputer technology. Data are now entered through user-friendly input programs, and many outputs are presented graphically to make them easier to use and understand. The models themselves have also been improved to better simulate the flow of traffic and make them easier to use with modern traffic control equipment. The programs described in this article included the latest versions of the TRANSYT-7F and PASSER-II signal timing optimization models, as well as a number of auxiliary programs designed to run in conjunction with them. The programs are in the public domain or will be distributed without profit. A number of privately developed programs are also available to assist users of the optimization models. Information on obtaining the software described here, plus many other useful programs, is provided at the end of this article.

• OSTI ID: 5569736
• Journal Information: ITE (Institute of Transportation Engineers) Journal; (USA), Journal Name: ITE (Institute of Transportation Engineers) Journal; (USA) Vol. 61:4; ISSN 0162-8178; ISSN ITEJD
• Country of Publication: United States
• Language: English

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