A Study on the Measurement of Mental Load in Driving the Dangerous Point of Expressway

在日本，为了提高道路的安全性和效率，正在进行引进先进和巡航辅助公路系统（AHS）的研究。本文主要研究事故多发路口的安全系统，因为安全系统第一阶段的主要目标是减少事故数量。下一阶段将考虑增加容量等提高效率的服务内容。用于合并的AHS部分是这个阶段中最重要的部分。微观仿真系统是分析合并段引入AHS系统效果的有效工具。在构建自动驾驶系统下驾驶员行为模型的过程中，需要明确驾驶员行为机制和模型参数。本研究的目的是考虑高速公路合流路段AHS的有效服务内容。在东京都高速公路和富明高速公路的3个合流路段进行了归类为AHS基本功能的合流路段信息系统的试验研究。分析了不同信息方式下驾驶员反应和操作的差异。

In Japan, a study for introducing the Advanced and Cruise-assist Highway System (AHS) in order to increase safety and efficiency at road section is going on. The AHS for intersection at which many accidents occur is mainly studied because the main target of the AHS in first phase is to decrease the number of accidents. The service contents to increase efficiency including the increase of capacity will be considered for the next phase of AHS system. The AHS for merging section is placed as the most important in this phase. The micro simulation system is considered to be a useful tool in order to analyze the effect of the introduction of AHS system at merging section. In the process for constructing model that expresses driver' s behavior under AHS system, the behavioral mechanism and model parameters should be made clear.The purpose of this study is to consider effective service contents of AHS at merging section of expressway. An experiment of information system at merging section that is classified as basic function of AHS is examined at 3 merging sections of the Tokyo Metropolitan Expressway and Tomei Expressway. The differences of driver' s reactions and operations for several methods of information are analyzed.