Using the 1985 HCM, PASSER and TRANSYT in Harmony

by Dennis W. Strong, Strong Concepts, Northbrook, United States,
Ralph B. Tompkins, Strong Concepts, Northbrook, United States,

Document Type: Proceeding Paper

Part of: Microcomputers in Transportation


Throughout the last decade, the City of DeKalb Engineering Division has embarked on a program to address their highly variable traffic demands with comprehensive signal system projects using state-of-the-art, off-the-shelf software and control hardware. This effort recently culminated in the installation of an upgraded central master control system and new city-wide timing plans for their 31 signals. In 1990 the system was upgraded to a VMS 330, and in 1991 the system was completed by connecting the remaining arterial, Illinois Route 23, to the system. The challenge then became to develop timing plans that would utilize the new technology. The Illinois Department of Transportation helped by funding a City-Wide Signal Retiming project, with primary emphasis on the original Illinois Route 38 system and the new Route 23 system. This paper describes the unique and efficient way that this signal timing effort was accomplished.

Subject Headings: Traffic signals | Control systems | Systems engineering | Computing in civil engineering | Computer software | Traffic signs | Traffic engineering | Illinois | United States

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