基于信息负荷的城市地下道路视觉环境影响车辆运行特征机理分析

Mechanism Analysis of Vehicles Operating Characteristic affected by the Visual Environment in Urban Underground Road Based on Information Load

摘要:

计算不同道路环境下驾驶员所获得的视觉信息负荷，解析导致车辆在不同道路环境下存在运行特征差异的机理，提高地下道路技术设计和运营管理水平。应用实车试验技术获取地上和地下道路环境中车辆运行特征数据和视觉环境资料，进行不同道路环境系统中车辆运行特征和驾驶员视觉信息负荷的对比研究，分析视觉信息负荷对车头间距和运行车速等车辆运行特征的影响规律。在此基础上深入研究了地下道路视觉环境影响驾驶员视觉信息负荷的机理。最后通过模拟驾驶技术提出了完善和提高地下道路视觉环境交通安全性的技术措施。

Abstract:

Driver visual information load in different road environment is calculated and mechanism of vehicles operating characteristics affected by the different road environment is analyzed in this paper. The purpose is to improve technical design and operational management level in underground roads. Firstly, vehicles operating characteristic and visual environment information are obtained with naturalistic driving on underground and aboveground road. Comparative study about vehicle operation characteristics and driver visual information load are carried out. The relationship between visual information load and vehicle operation characteristics (headway space and operating speed) is researched. Secondly, influence mechanism vehicles operating characteristics affected by visual environment in underground road is analyzed; Lastly, the measures improving and enhancing underground traffic security is proposed based on driving simulation.