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Major Enhancements to TRANSYT-7F

by Mohammed A. Hadi, Univ of Florida Transportation, Research Cent, Gainesville, United States,
Charles E. Wallace, Univ of Florida Transportation, Research Cent, Gainesville, United States,



Document Type: Proceeding Paper

Part of: Microcomputers in Transportation

Abstract:

TRANSYT-7F is one of the most powerfull computer programs fir traffic signal timing and traffic flow analysis. This paper describes some of the significant improvements over earlier versions of the program package. It is : 1)the implementation of a progression based optimization model that uses the forward progression opportunities (PRDS) concept; 2)improved handling of overlap phases; 3)improved split optimization routine; 4)the calculation of stops was modified to deal more accurately with stops at degrees of saturation near or more than 100%.

Subject Headings: Traffic signals | Optimization models | Traffic analysis | Computer models | Traffic models | Traffic flow | Model accuracy

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