高速公路施工区提前警告区域限速方案风险评价  

Risk evaluation of speed-limiting schemes for advanced warning area of expressway work zone

作　　者：吴彪[1] 许洪国[2] 戴彤焱[1] 徐慧智[3] 

机构地区：[1]黑龙江工程学院汽车与交通工程学院,黑龙江哈尔滨150050 [2]吉林大学交通学院,吉林长春130025 [3]东北林业大学交通学院,黑龙江哈尔滨150040

出　　处：《合肥工业大学学报（自然科学版）》2013年第11期1295-1299,共5页Journal of Hefei University of Technology：Natural Science

基　　金：国家自然科学基金资助项目(51078167);教育部人文社会科学研究青年基金资助项目(11YJCZH183);黑龙江省教育厅科学技术研究基金资助项目(12511451);黑龙江工程学院博士科研基金资助项目(2011BJ18)

摘　　要：文章应用车辆跟驰理论、交通心理学原理和微观安全评价方法,选取车辆加减速度作为施工区行车风险的度量指标,以交通流平均速度、平均车道占有率及速度变异系数等宏观交通流参数表征施工区行车风险。综合考虑通行能力和交通安全等因素,给出4种高速公路施工区提前警告区域限速标志设置方案,应用微观交通仿真方法对4种限速方案进行了仿真分析与评价。研究结果表明,4车道高速公路行车道封闭养护施工时,提前警告区在原60km/h限速标志的基础上,增设80km/h限速标志的方案较为有效。The indicators of acceleration and deceleration were selected to evaluate driving risk and the macroscopic traffic flow parameters including average speed, mean occupancy ratio and speed variation were proposed to characterize driving risk through the ear-following theory, traffic psychology and mi- crocosmic safety evaluation method. Considering the factors such as the capacity and traffic safety, four speed-limiting signs schemes for advanced warning area of expressway work zone were put for- ward. The speed-limiting schemes were simulated and evaluated by microcosmic traffic simulation method. The result indicates that the scheme of the first speed limit value of 80 km/h and the second speed limit value of 60 km/h is most effective when the through lane of four-lane expressway is en- closed as work zone.

关 键 词：交通安全 行车风险 交通仿真 施工区 限速控制 

分 类 号：U491.1[交通运输工程—交通运输规划与管理]