“以人为本”理念下交叉口缘石转弯半径取值研究  

Research on the Value of Curb Radius at Intersection Based on the People-oriented Concept

作　　者：费硕 张蕊 张士杰 段竞泽[4] FEI Shuo;ZHANG Rui;ZHANG Shijie;DUAN Jingze(College of Civil and Transportation Engineering,Beijing University of Civil Engineering and Architecture,Beijing 100044,China;Beijing Collaborative Innovation Center for Metropolitan Transportation,Beijing University of Civil Engineering and Architecture,Beijing 100044,China;Beijing Urban Transportation Infrastructure Engineering and Architecture,Beijing University of Civil Engineering and Architecture,Beijing 100044,China;Shenzhen Urban Transport Planning Center,Beijing 100083,China)

机构地区：[1]北京建筑大学土木与交通工程学院,北京100044 [2]北京建筑大学首都世界城市顺畅交通协同创新中心,北京100044 [3]北京建筑大学北京市城市交通基础设施建设工程技术研究中心,北京100044 [4]深圳市城市交通规划设计研究中心有限公司北京分公司,北京100083

出　　处：《交通工程》2021年第3期1-6,共6页Journal of Transportation Engineering

基　　金：住房和城乡建设部软科学研究项目(2018-R2-046);地下换乘系统关键技术研究(UDC2019032924).

摘　　要：在“以人为本”的设计理念下,结合交叉口过街行人、右转机动车及非机动车冲突特性优化社会力微观仿真模型,并基于所建仿真模型对不同缘石转弯半径下的交叉口进行仿真,分析行人过街延误与右转车头间距随缘石转弯半径的变化情况,以行人延误小、安全性高为优化目标.在以慢行交通为主,设计速度为60 km/h的两同类型次干路以直角相交,右转机动车专用道设计速度为30 km/h时,缘石转弯半径以10 m为宜,该研究方法可为交叉口精细化设计提供定量分析方法和设计依据.The turning radius of the curb at an intersection is generally determined according to the design speed of right-turning vehicles.Under the“human-oriented”design concept,it is of great significance to optimize the curb turning radius with the goal of improving pedestrian safety and mobility.This paper optimizes the social force micro-simulation model based on the conflict characteristics of pedestrians,bicycles,and vehicles at intersections,and simulates the intersections with different curb turning radius based on the built simulation model,and analyzes the delay of pedestrians crossing the street and the change of the distance between the heads of vehicles and the curb turning radius in the situation.The optimization goal is to minimize pedestrian delay and improve safety.When two secondary trunk roads of the same type with a design speed of 60 km/h intersect at right angles,and the design speed of the right-turning motor vehicle lane is 30 km/h,the appropriate turning radius of the curb is 10 m.This research method can provide a quantitative analysis method and design basis for the refined design of intersections.

关 键 词：以人为本设计理念 微观交通仿真 交叉口缘石转弯半径 行人延误 车头间距 

分 类 号：U412.351[交通运输工程—道路与铁道工程]