A Method to Design Weather-Responsive Speed Limit Subject to Visible Distance in the Absence of Road Surface Friction Coefficient

The popular weather-responsive design of variable speed limit (VSL) of freeway subject to visible distance relys on technically expensive detection/estimation of friction coefficient, not applicable for economy-underdeveloped areas. A method is proposed to design weather-responsive VSL at lower cost...

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Bibliographic Details
Published in2015 8th International Conference on Intelligent Computation Technology and Automation (ICICTA) pp. 36 - 39
Main Authors Yuan Jian-Hua, Wu Yang, Ma Qing, Zhang Zhiyong
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2015
Subjects
adverse weather
Floors
Friction
friction coefficient
Ice
Meteorology
Roads
speed limit of freeway
stopping sight distance
Traffic control
Vehicles
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DOI10.1109/ICICTA.2015.18

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Summary:The popular weather-responsive design of variable speed limit (VSL) of freeway subject to visible distance relys on technically expensive detection/estimation of friction coefficient, not applicable for economy-underdeveloped areas. A method is proposed to design weather-responsive VSL at lower cost, using equivalently-transformed four discrete thresholds of friction coefficient contingent on different types and intensities of adverse weather (including: the road surface conditions of dry or wet, and the conditions of water or snow/ice covering adhered onto road surface), instead of expensive real time-detected continuous spectrum of friction coefficient.
DOI:10.1109/ICICTA.2015.18