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Weather-responsive Freeway Speed-Limits Using Approximated Friction Coefficient of Road Surface
| 题名： | Weather-responsive Freeway Speed-Limits Using Approximated Friction Coefficient of Road Surface |
| 正文语种： | 中文 |
| 作者： | YUAN Jianhua WU Yang MA Qing ZHANG Zhiyong |
| 作者单位： | Traffic Management Research Institute of Ministry of Public Security, Wuxi ity, hina ollaborative Innovation enter of Modern Urban Traffic Technologies, Nanjing ity, hina Wuxi ity, hina |
| 关键词： | variable speed limit (VSL) adverse weather visible distance radius of cureve friction coefficient |
| 摘要： | The regular weather-responsive design of variable speed limit (VSL, as a subsystem of Intelligent Transport System) of freeway relys on expensive realtime detection of road surface friction coefficient, not available for economy-underdeveloped regions.A low-cost approach is proposed to design 2 types of weather-responsive VSL (straight-running VSL subject to visible distance, and curve-running VSL aimed at skid-avoidance) in the absence of friction coefficient, using equivalently-approximated discrete friction coefficient (thresholds) depending on the types and intensities of adverse weather elements (i.e.the road surface conditions of dry or wet, further of water or snow/ice covering adhered on road surface), in stead of expensive realtime-detected continuous friction coefficient. |
| 会议日期： | 201511 |
| 会议举办地点： | 成都 |
| 会议名称： | 2015第二届智能交通国际会议 |
| 出版日期： | 2015-10-31 |
| 母体文献： | 2015第二届智能交通国际会议论文集 |
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