城市中心景观类环形交叉口交通改善研究

Research on Traffic Improvement of Roundabouts in Urban Central Landscapes: A Case Study of East Ring Road Roundabout in Handan

摘要:

城市环形交叉口一般兼具城市门户、中心景观、交通等复合功能，但该交通组织形式大多已经不能满足城市的发展以及交通量的增长。以邯郸市东环环形交叉口改造为例，综合景观文化保留、近远期结合、交通系统性等原则，对中心环岛进行压缩，保留既有景观雕塑，并改为信控交叉口。改造后，节点通行效率以及交通秩序均得到了有效改善。

Abstract:

Urban roundabouts generally serve the multiple functions such as city gateways, central landscapes and transportation. However, this form of traffic organization has mostly been unable to meet the needs of urban development and the growth of traffic volume. Taking the reconstruction of the East Ring Road Roundabout in Handan City as an example, based on the principles of retaining comprehensive landscape culture, combining short-term and long-term planning, and ensuring traffic system integrity, the central roundabout is compressed, the existing landscape sculptures are retained, and the central roundabout is converted into a signal-controlled intersection. After the reconstruction, both the traffic efficiency at the node and traffic order have been effectively improved.