降雨对城市交通拥堵的影响分析  

Analysis of the Impact of Rainfall on Urban Traffic Congestion

作　　者：汤柳丹 洪奇 Tang Liudan;Hong Qi(Hangzhou Transportation Engineering Consulting Co.,Ltd.,Hangzhou 310000,China)

机构地区：[1]杭州交通工程咨询有限公司,浙江杭州310000

出　　处：《市政技术》2023年第9期171-176,共6页Journal of Municipal Technology

摘　　要：降雨通常会加重城市交通拥堵,增加通行时间,影响居民出行体验和城市经济社会发展。为缓解降雨对城市交通的影响,需要对城市干道交通拥堵形成的原因进行定量和定性分析。通过分析不同天气下车辆在快速路上的行驶速度和延误指标的变化特征,判断雨天与交通拥堵的关系;再通过计算不同降雨量对道路通行能力、车头间距、停车距离、驾驶员反应能力等方面的影响程度,从而达到通过降雨量预报就能预判城市拥堵程度,交通管理部门可以据此采取相应的交通管理措施。Rainfall usually exacerbates urban traffic congestion,increases passing time,affect residents’travel experience,and affect urban economic and social development.In order to alleviate the impact of rainfall on urban traffic,it is necessary to conduct quantitative and qualitative analysis of the causes of traffic congestion on urban main roads.The changing characteristics of vehicle speed and delay index on expressways are mainly analyzed under different weather conditions in this article to judge the relationship between rainy days and traffic congestion;The impact of different rainfall on road capacity,headway,parking distance,driver response ability are calculated to predict the degree of urban congestion through rainfall forecasting.According to this data,the traffic management department can take corresponding traffic management measures.

关 键 词：交通拥堵 降雨量 通行能力 附着系数 车头间距 

分 类 号：U491[交通运输工程—交通运输规划与管理]