00780218

Component

https://doi.org/10.3141/1683-16

http://scholar.google.com...anik&publication_year=1999

Recently released TRANSYT-7F version 8.1 was found to provide significant feature improvements such as multiple-cycle simulation, spill-back effects, and optimization for oversaturated conditions. An overview of these new features compared with features of the previous version is presented. A comparison between the new TRANSYT-7F version 8.1 and the previous version 7.2 for oversaturated, closely spaced intersections is based on CORSIM simulations. The comparison results show that the new TRANSYT-7F program outperforms the previous one in terms of average delay, queue time, and throughput for oversaturated conditions, but results for undersaturated conditions were similar. The results indicate the queue-blocking algorithm and multiple-cycle simulation recently added to TRANSYT-7F are essential for traffic signal optimization during oversaturated conditions.

This paper appears in Transportation Research Record No. 1683, Advanced Traffic Management Systems.

English

p. 127-132

1999

Transportation Research Record

0309071100

Figures (4) ; References (11) ; Tables (3)

Algorithms; Optimization; Simulation; Traffic delays; Traffic oversaturation; Traffic queuing; Traffic signal timing

CORSIM (Traffic simulation model); TRANSYT (Computer program)

Spillback effects (Traffic); Throughput (Traffic)

Highways; Operations and Traffic Management; I73: Traffic Control

TRIS, TRB, ATRI

Dec 8 1999 12:00AM

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