The Influence of Road Geometry on Vehicle Rollover and Skidding

International Journal of Environmental Research and Public Health
Yanna YinWei Hou

Abstract

This paper analyzes the influence of single and combined unfavorable road geometry on rollover and skidding risks of D-class mid-sized sport utility vehicles (SUVs) with front-wheel drive for roads with design speeds at 80 km/h. A closed-loop simulation model of human-vehicle-road interactions is established to examine the systematic influence of road geometry on vehicle rollover and skidding. The effects of different road geometry on rollover and skidding on SUVs are studied for pavement surface with good and poor friction when vehicles are in the action of steady state cornering. The rollover and skidding risks of the most unfavorable road segments are assessed. The critical wheel is defined by the threshold of skidding during curve negotiation. The results found that SUVs are not easy to rollover on the most unfavorable roads, regardless of good or poor friction of pavement surface. The safety margin of rollover is greater than that of skidding. The safety margin of skidding is minimal on poor friction roads. Therefore, for the sake of driving safety, it is not recommended to design the roads with these unfavorable road geometry combinations.

References

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Apr 5, 2016·Accident; Analysis and Prevention·Jeffrey P GoochEric T Donnell
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Dec 10, 2019·Accident; Analysis and Prevention·Ghazaleh AzimiXia Jin
Jan 14, 2020·Accident; Analysis and Prevention·Seyedehsan DadvarHyeon-Shic Shin

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Citations

Aug 23, 2020·International Journal of Environmental Research and Public Health·Amir Saman Abdollahzadeh NasiriAmir Mosavi

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ADAMS
CarSim
TruckSim

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