文章编号：1672-5328（2007）03-0086-06

张宁¹ 陈  恺^1，2 何铁军¹ 黄卫¹
（1.东南大学交通学院，南京 210018； 2.四川省交通厅公路规划勘察设计研究院，成都 610041）

摘要：中间分隔带不仅有利于车辆安全行驶，也是提高道路通行效率，进行有效交通组织的重要交通设施。通过对不同型式分隔带各自优缺点的分析，认为绿化带式的中间分隔带对保障行车安全最为有利。同时，这种分隔带为配合交通组织与管理以及将来的道路改造，都提供了充裕的条件。之后对绿化带式的中间分隔带宽度、开口型式以及转向车道的设置等设计细节问题进行了探讨。

关键词：城市道路；中间分隔带；分隔带宽度；转向车道

中图分类号：U491

文献标识码：A

Comparative Study and Design of Urban Street Median

ZHANG Ning¹, CHEN Kai^1,2, HE Tiejun¹, and HUANG Wei1
(1.School of Transportation, Southeast University, Nanjing 210018, China; 2.Sichuan Province Communication Department Highway Planning, Survey, Design and Research Institute, Chengdu 610041, China)

Abstract: Street medians are not only beneficial to the safe traveling of vehicles, but also an important measure for the improvement of street capacity and the effectiveness of traffic organization. Through an analysis of the advantages and shortcomings of different types of street medians, this paper identifies the green medians (raised median with green landscaping) are most suitable for the safe traveling of vehicles. Meanwhile, it is understood, too, that this type of medians is better in traffic organization and management, and in future street reconstruction. The paper concludes with a discussion on design details regarding the width and opening of the green medians as well as the turn-lane configurations attached to the medians.

Keywords: urban road; street medians; street medians width; turn-lanes