The Speed Model of Slippery Pavements in Curves Based on Driving Simulation Data

Ben-ming, Liu; Liao, Yanfeng; Guan, Xingyu

doi:10.1061/9780784482933.320

Cited by 1 publication

(3 citation statements)

References 7 publications

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“…The turning safety speed is obtained by modifying the critical safety with the safety factor. Through cases discussion and analysis, the following conclusions are drawn, (1) The driving safety state can be evaluated reasonably with the synthesis of entropy weight analysis and AHP. And, the driving safety state mainly depended on the worst factor of the driver-vehicle-road-environment system.…”

Section: Discussionmentioning

confidence: 94%

“…According to the A 1 , the weight of each factor can be calculated using the entropy method again, which is obtained as w 1 1 =[0.3264 0.1147 0.2477 0.3112]. Then, comprehensive evaluation values are obtained as Y = [55.5249 51.1415 51.5608 53.5500 55.5502 54.5207] T .…”

Section: Resultsmentioning

confidence: 99%

“…Curves are typical high-risk driving sections, with more than 25% of accidents occurring on curves. 1,2 Remarkably, high velocity represents a predominant cause for these accidents. To reduce traffic accidents, safety speed management is crucial to vehicles driving on curves.…”

Section: Introductionmentioning

confidence: 99%

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Study on the safety speed of vehicle turning with considering the driving safety evaluation

Xian

Feng

Zhang

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part D:

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Safety speeds estimation, as an indispensable link in the development of the aided or automatic drive, receives wide attention recently. Due to uncertain disturbances of vehicle driving, it is a challenging task to estimate the safety speed credibly. This work proposes a modified estimation approach to predict the turning safety speed by combining the static drive safety evaluation with the dynamic vehicle speed calculation. First, the driving safety state is evaluated considering the coupling of driver-vehicle-road-environment, where a comprehensive evaluation is obtained by combing the analytic hierarchy process and entropy weight analysis method. Then, a turning critical speed is calculated based on the vehicle driving dynamics considering both sideslip and rollover. The estimation of turning safety speed is achieved by modifying the critical speed with a safety correction factor obtained from the driving safety state evaluation. Finally, cases discussion on driving safety states evaluation, as well as the critical speed verification and safety speed analysis, are carried out. The results verify the validity of the driving safety state evaluation and critical speed calculation. The safety speeds have a reasonable safety margin according to the driving safety state evaluation. The maximum differences between the safety speeds and critical speeds are about 26.45% for buses and 26.39% for cars under low adhesion conditions, showing sufficient reliability for safety speed estimation.

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Section: Discussionmentioning

confidence: 94%

Section: Resultsmentioning

confidence: 99%