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Using Drivers` Stop/Go Decisions in Driving Simulator to assess rear-end crash risk

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Mohamed Abdel-Aty,Xuedong Yan,Essam Radwan,Xuesong Wang

Abstract:Advanced driving simulators have a potential to be utilized to assess crash risks of driving behaviors, traffic surroundings, and highway designs. This study focused on investigating if drivers` stop/go decisions due to signal change in the simulator`s virtual reality can be used to assess rear-end crash risk at the signalized intersection. A signalized intersection with as many important features (including roadway geometries, traffic control devices, intersection surroundings, and buildings) was replicated into a high-fidelity driving simulator. Using the virtual signalized intersection, a driving simulator experiment was conducted to test driver`s stop/go decisions at two approaches of the intersection that respectively showed higher and lower rear-end crash risks in the crash history analysis. The experiment results showed that the variability in drivers` stop/go decisions at the higher crash-risk location is higher than that at the lower crash-risk location. Further, through modeling rear-end conflicts based on driver`s stop/go probability as a function of potential time to intersection, it was found that the rear-end crash tendency at the two locations displayed by the driver`s stop/go behavior in driving simulator is consistent with the finding from the trend in crash history analysis. This research supported that driver`s stop/go behavior in a driving simulator can be utilized to assess rear-end crash risk at signalized intersections to seek effective engineering countermeasures to lower crash rates for the high-risk locations.

引用:Abdel-Aty M., Yan X., Radwan E., and Wang X. Using Drivers` Stop/Go Decisions in Driving Simulator to Assess Rear-End Crash Risk at Signalized Intersections. Journal of Transportation Safety & Security, Vol. 1, No. 2, 2009, pp 85-100.

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