Modeling the Safety Effect of Access and Signal Density on Suburban Arterials:Using Macro Level Analysis Method

摘要：

　　With rapidly increasing of the land development density along suburban arterials,muchmore irregular signal spacing appeared on suburban arterials,and high access density is commonlyobserved on suburban arterials.These issues tend to increase the risk of crash occurrence ofarterials.By developing safety performance functions on road segments and intersections separately,the previous research analyzed the partial safety effects of the influence factors.In this study,Bayesian Conditional Autoregressive(CAR)models were developed at traffic analysis zone(TAZ)level for suburban arterials laid in suburban area in Shanghai.The model result showed that higheraccess and signal density tend to increase crash frequencies occurred on arterials.At this point,designing frontage roads paralleled to arterials to collect the access traffic instead of those intensiveaccess could reduce crashes occurred on arterials.

关键词： Suburban Arterial Access Density Signal Density Bayesian Conditional Autoregressive (CAR) Models Traffic Analysis Zone Macro Level Analysis Method

作者: Yuan Jinghui Wang Xuesong

作者单位: The Key Laboratory of Road and Traffic Engineering,Ministry of Education,Tongji University,4800 Cao” Jiangsu Province Collaborative Innovation Center of Modern Urban Traffic Technologies,SiPaiLou ＃2,Na

会议类型: 国内会议

会议名称: 第十届中国智能交通年会

会议地点: 无锡

会议语种:英文

页码: 566-572

在线出版日期: 2015-11-04（万方平台首次上网日期，不代表论文的发表时间）