Transferability of calibrated microsimulation model parameters for safety assessment using simulated conflicts

Accident; Analysis and Prevention
Mohamed Essa, Tarek Sayed

Abstract

Several studies have investigated the relationship between field-measured conflicts and the conflicts obtained from micro-simulation models using the Surrogate Safety Assessment Model (SSAM). Results from recent studies have shown that while reasonable correlation between simulated and real traffic conflicts can be obtained especially after proper calibration, more work is still needed to confirm that simulated conflicts provide safety measures beyond what can be expected from exposure. As well, the results have emphasized that using micro-simulation model to evaluate safety without proper model calibration should be avoided. The calibration process adjusts relevant simulation parameters to maximize the correlation between field-measured and simulated conflicts. The main objective of this study is to investigate the transferability of calibrated parameters of the traffic simulation model (VISSIM) for safety analysis between different sites. The main purpose is to examine whether the calibrated parameters, when applied to other sites, give reasonable results in terms of the correlation between the field-measured and the simulated conflicts. Eighty-three hours of video data from two signalized intersections in Surrey, BC were use...Continue Reading

References

Oct 1, 1994·Accident; Analysis and Prevention·T SayedF Navin
Dec 13, 2005·Accident; Analysis and Prevention·Ase Svensson, Christer Hydén
May 8, 2008·Accident; Analysis and Prevention·Flávio Cunto, Frank F Saccomanno
Jan 25, 2012·Accident; Analysis and Prevention·Jarvis AuteyMohamed H Zaki
Jul 9, 2013·Accident; Analysis and Prevention·Emanuele SacchiPaul deLeur
Jun 4, 2014·Accident; Analysis and Prevention·Chen Wang, Nikiforos Stamatiadis
Jun 21, 2014·Accident; Analysis and Prevention·Usama ShahdahBhagwant Persaud

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Citations

Feb 15, 2021·Accident; Analysis and Prevention·Ashutosh ArunTarek Sayed
Apr 8, 2019·Accident; Analysis and Prevention·Ziaur RahmanTaylor Johnson

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