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Title: Traffic Microsimulation Modeling to Study a Traffic Signal Incident Reduction Function
Accession Number: 01123225
Record Type: Component
Record URL: Availability: Transportation Research Board Business Office 500 Fifth Street, NW Find a library where document is available Abstract: This paper demonstrates the use of a discrete event traffic microsimulation model to study the safety impacts of the introduction of an incident reduction (IR) function into a vehicle-actuated traffic signal controller. The IR function is based on that used in signal controllers in Sweden. The IR function is designed to reduce the number of stop-or-go decisions by drivers when caught in the dilemma zone at the onset of the amber signal. A correctly adapted IR function was found to greatly enhance the safety performance of signalized intersections. The simulation experiment described in the paper is based on empirical data from a suburban vehicle-actuated signalized intersection. It was conducted specifically to investigate the effects of the standard IR function on three proximal safety indicators: time to collision, red light violations, and required braking rates. The simulation results demonstrate a significant improvement in the time to collision (22%), red light violations (6%), and required braking rate when the IR function was in operation and a small positive influence on traffic movement through the intersection. Importantly, this study has illustrated the potential for using traffic microsimulation modeling for traffic safety evaluation.
Monograph Title: Monograph Accession #: 01138796
Report/Paper Numbers: 09-0220
Language: English
Authors: Young, WilliamArcher, JefferyPagination: pp 80-87
Publication Date: 2009
ISBN: 9780309126182
Media Type: Print
Features: Figures
(6)
; References
(18)
; Tables
(3)
TRT Terms: Uncontrolled Terms: Subject Areas: Highways; Operations and Traffic Management; Safety and Human Factors; I73: Traffic Control; I80: Accident Studies
Files: TRIS, TRB, ATRI
Created Date: Jan 30 2009 4:30PM
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