摘要
城市道路路网是城市交通的基础,合理的城市路网需要合理的城市路网密度。在控制道路面积率和交通需求不变的基础上,本文提出了一种对城市中心区大街区和小街区下不同路网密度的交通效率进行比较的定量分析法。通过利用Synchro分别对大街区和小街区情形下路网进行仿真,对路网交叉口的延误、交叉口停车、路网容量以及路段速度四个主要效率指标进行定量对比分析。以上海临港新城道路网和流量为基础,进行仿真和对比分析,分析结果表明小街区路网较大街区路网有较高交通效率。
Road network is the base of urban transportation.Rational network means rational network density. Basing on keeping the road-area rate and the total traffic demand unchanged,this paper proposes a quantitative analysis method which compares the traffic efficiency of the super blocks and the small blocks in the CBD.By using the Synchro,this paper quantitatively analysis the main four evaluation indexes of different block scales：delay and stops at the intersection, road-network capacity and average velocity .By taking the Lingang New City of Shanghai for example,a simulation and a comparative analysis are conducted,and the comparison result shows that the small- blocks network has a better traffic efficiency than the supper-blocks network dose.
作者
覃鹏
朱方方
王正
QIN Peng ZHU Fangfang WANG Zheng(College of Transport and Communication, Shanghai Maritime University, Shanghai 201306, China)
出处
《综合运输》
2016年第11期58-63,77,共7页
China Transportation Review
