考虑驾驶员认知过程的高速公路施工区MVMS前置距离计算模型

摘要

为提高高速公路施工区移动式可变信息标志设置的有效性,从认知心理的角度分析驾驶员对移动式可变信息标志的视认性.根据交通信息调查统计数据,分析驾驶员养护施工信息需求；基于驾驶员认知特性,建立高速公路施工区移动式可变信息标志的认知模型,推导出施工区移动式可变信息标志前置距离计算模型.研究结果表明,高速公路施工区移动式可变信息标志的最小安全前置距离约为330 m.%In order to improve the validity of mobile variable message signs setting in expressway work zone, the driver's observation features of mobile variable message signs were analyzed from cognitive psychology. According to the result of traffic information investigation, the demand of driver's maintenance construction information was developed. Based on the characteristics of driver's cognition, the models on driver's cognition and lead distance of mobile variable message signs were presented in expressway work zone. Results of this study show the minimum lead distance of mobile variable message signs is about 330 meters in expressway work zone.