高速公路曲线路段驾驶员速度感知变化规律  

Variation of Drivers′ Speed Perception in Curve Section of Expressway

作　　者：刘婷 裴霏 王倩 LIU Ting;PEI Fei;WANG Qian(School of Civil Engineering,Xi′an Traffic Engineering Institute,Xi′an 710300)

机构地区：[1]西安交通工程学院土木工程学院,西安710300

出　　处：《公路交通技术》2022年第2期146-150,共5页Technology of Highway and Transport

基　　金：西安交通工程学院重大科研项目(2021KY-20;2021KY-21)。

摘　　要：为了解曲线路段驾驶员车速感知变化规律,采用UC-win/Road驾驶模拟仿真系统设计了半径从400 m~1 000 m的路线场景进行驾驶模拟试验。用软件内置的ECO驾驶插件采集车辆全路段的实时车速,采用“询问法”获取驾驶员在特征点的感知车速,对比分析特征点的感知车速与实际车速,并选取与模拟场景基本一致的路段进行实地验证。结果表明:当路侧环境单调时,驾驶员的感知车速均低于实际车速,曲线入弯点附近感知车速远低于实际车速,但平曲线半径对入弯点车速感知误差影响不大,经过曲中点后,驾驶员感知车速准确性逐渐提高。这一结论可为管理部门合理布控限速设施提供参考。In order to understand the variation of speed perception of the curve section,the UC-Win/Road driving analog simulation system was used to design the route scene with radius from 400 m to 1000 m for driving simulation test.ECO driving plug-in built-in the software was used to collect real-time speeds of the vehicle.The"inquiry method"was used to obtain the driver′s perceived vehicle speed,at the characteristic points.The perceived vehicle speed and actual speed of the characteristic points were compared and analyzed.Road section basically the same with the simulation scene was selected to perform field verification.The results show that the driver′s perceived speed is lower than the actual speed when the road side environment is monotonous.The perceived speed close to the turn-in point of the curve is much lower than the actual vehicle speed,but the flat curve radius has a small effect.After passing the midpoint of the curve,accuracy of the perceived speed was gradually improved.This conclusion can be used as a reference for the management department to reasonably arrange and control the speed limit facilities.

关 键 词：高速公路 车速感知 模拟驾驶 平曲线 

分 类 号：U491[交通运输工程—交通运输规划与管理]