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原文传递 Driver Interaction with Temporary Traffic Management. Phase 2 Report: Simulator Study

题名：	Driver Interaction with Temporary Traffic Management. Phase 2 Report: Simulator Study
责任者：	N Reed, A Dale and BF Sexton
关键词：	not available
学科分类：	交通运输安全
摘要：	Structure of the project Road worker safety is a key priority for the Highways Agency. It has recently introduced the „Aiming for Zero? initiative to address this issue directly. Road worker activity during temporary roadworks carries a high risk of injury due to the exposure to „live? traffic, particularly during short-term works at night. Contractors have suggested that the number of signs used in a closure could be reduced to risk exposure when deploying the signs. This project was commissioned to examine driver behaviour and response to changes in the configuration of the signs used for temporary traffic management (TTM). The objective was to examine whether it was possible to use an effective TTM configuration that reduces the number of carriageway crossings necessary to deploy the TTM measures. The TTM configurations were tested in a controlled environment using 81 participants in a driving simulator trial. The recommended layout will move forward to a limited area roll-out. The simulator trial The use of a driving simulator allowed the research team to develop a driving scenario that provided a safe, realistic and consistent environment in which to assess driver behaviour when travelling through the different TTM configurations that were developed for this study. During the simulator trial, the computer systems logged data from the driven vehicle 20 times a second throughout each trial drive. The recorded data was separated into vehicle control measures and visual behaviour measures. Vehicle control measures include information on the speed of the vehicle driven by the participant, when and how drivers change lane, the way in which a driver brakes and the movement of the vehicle within the lane or related to other vehicles in the simulation. The measures of visual behaviour enabled an assessment of the duration and frequency with which participants looked at the signs present when driving through the roadworks and their distance from each sign when they chose to look at it. These measures help to identify the information the participants used to make decisions when approaching the roadworks and what to determine what information tended to be ignored. Results The results of the simulator trial showed that driver behaviour was relatively consistent across the four TTM configurations under test; statistical results indicated that for each of the modified layouts, behaviour did not differ significantly from that observed in the standard DZB6 configuration. Overview of simulator results: Drivers maintained a similar following times to the vehicle in front regardless of whether they were in a road works section or not All drivers present in the lane to be closed (lane 3) on approach to the roadworks had merged into lane 2 at least 200 metres before the cone taper, suggesting that in all layouts drivers understood the TTM measures and what they had to do in response. Drivers reduced speed when in a roadwork environment The result of this study is inconsistent with the findings of previous work in this area. However, this study developed a more robust methodology and examined a number of areas that the previous work was unable to consider (due to technological advancement in the TRL simulator).
出版机构：	Transport Research Laboratory
提交日期：	1 January 2011
总页数：	0
报告类型：	科技报告
资源类型：	科技（咨询、行业）报告
初始创建时间：	1 January 2011