城镇化进程中穿村镇道路安全设计基础理论与关键技术参数研究

Safety design problem of the road through village and town which contains double features of highway and urban road has become the bottle neck of rapid city and town-rization. It’s urgent to give out right theory and method. But highway and urban road design standards still have no clear provision as the lack of basic theory and core technology. This project plans to start with the Analysis and identification of influence factors of rural highway safety, In order to reveal the formation mechanism of the traffic accident as the goal, and to practice the theory research services application guidelines, and analyse the relationship between vehicle driving character and road safety； Show the actual meaning of driving behavior and deduce the math model of quantifiable driving behavior. Study on the interaction of driving behavior and vehicle，and build an evaluation calculation model of quantificat safety level; Study on the key technical parameters determined in the road through village safety and driving comfort index. Put forward the improvement strategy through village road safety level.It has a great significance of regulating town road network construction and leading the sustainable development of urbanization. Research project group for many years to complete the basic data for the reserve, and also getting hold of a solid theory foundation and practice basis of road planning and design theory and method, traffic safety audit and model building, and the traffic system simulation behavior research, the project team have a strong condition to completethe project and hit the target.

具有公路和城市道路双重特性的穿村镇公路的安全问题，已经成为快速发展的城镇化进程的瓶颈，迫切需要正确的理论和方法给予指导。而公路和城市道路设计规范至今没有给出明确规定，究其原因是缺乏基础理论的支持和关键技术的积累。本项目拟从分析识别穿村镇公路安全影响因素入手，以揭示其交通事故形成机理为目标，以理论研究服务实践应用为准则，分析车辆行驶特性与道路安全的关系；揭示驾驶行为的实际内涵，推导可量化驾驶行为的数学模型，研究驾驶行为与车辆行驶的互动关系，构建可量化安全水平评价的计算模型；研究确定穿村镇公路安全设计关键技术参数和驾驶舒适性指标，提出改善穿村镇公路安全水平的方法策略，对于规范村镇路网建设，引导城镇化可持续发展具有重要意义。项目组以多年完成的相关研究项目基础资料为储备，并且在道路规划设计理论与方法、交通安全审核与模型构建及驾驶行为研究等方面具有较为坚实的理论和实践基础，基本具备完成该项目的条件。

从产生交通隐患的源头出发，深刻剖析道路、交通条件→驾驶行为→车辆行驶特征→交通安全隐患的作用机理，重点研究穿村镇道路、交通条件与驾驶行为的关系、驾驶行为与车辆行驶特征的关系及车辆行驶特征与交通安全的递进关系，提出穿村镇道路安 全水平模拟评价计算方法及改善安全水平的技术策略。.借助驾驶模拟平台从人、车、路、环境四个角度深入分析影响穿村镇道路安全的关键因素、道路和交通条件对驾驶行为的影响，在此基础上开展驾驶行为与车辆行驶特征之间关系的研究，并进一步确定驾驶特征和道路安全水平的关系; 结合驾驶特性开展了车辆行驶速度特征分析、车辆行驶加速度特征分析、车辆行驶轨迹、偏移量特征分析、车辆行驶稳定性特征分析、驾驶特征与安全水平关系识别、安全水平计算模型建立以及定量化安全水平和评级划分。.项目组基于行车实验和驾驶模型得出缓和曲线的设置条件和设置长度、交叉口合理间距、交通标志前置距离、平面线形安全评价、出入口交织长度、分心驾驶对行车安全的影响等具有实际意义的结论。研究在穿村镇公路的设计、施工及管理运营等方面,提出能够有效改善穿村镇道路安全水平的方法措施，为规范村镇路网建设，引导城镇化可持续发展提供技术支持。