TRANSYT-7F USER'S MANUAL

Abstract

This document is the User's Manual for the computer program TRANSYT-7F (Traffic Network Study Tool, version 7F). TRANSYT is a traffic signal optimization model originally written in Great Britain by the Transport and Road Research Laboratory. Version 7 of the model was modified by the TRC to improve its utility in this country. Modifications included reorganized inputs, U.S. signal timing conventions, improved output formats, estimates of fuel consumption and the provision of time-space diagrams. TRANSYT-7F has proven far easier to use than earlier versions. Field implementation in a number of cities has demonstrated the model's usefulness in retiming traffic signal networks. TRANSYT-7F was developed under FHWA's National Signal Timing Optimization Project. Distribution of Release 4 of the TRANSYT-7F program began in June 1984. The revised version of the User's Mnaual is being distributed along with the Release 4 version of the program. (FHWA)