信号灯平交路口优化设计方法

Optimized Design Method of Signal Lamp At-grade Intersection

平交路口通行能力,一直是城市交通设计与管理者关注的重点。对于拥堵平交路口的改造,往往依赖于对路口宽度及通行时间上的增加,来实现平交路口整体通行能力的提升,而忽视了路口设计通行能力与实际交通量的匹配。通过实际案例,阐述在不增加路口宽度及信号灯周期条件下,通过对路口渠化车道及信号灯配时的调整,提高路口通行能力的设计方法,可为信号灯路口的优化设计提供一些借鉴和思路。

The traffic capacity of at-grade intersection is always paid attention by the urban traffic designers and managers.The reconstruction of congested at-grade intersection sometimes depends on the increment of intersection width and the traffic time to realize the improvement of the whole traffic capacity of the at-grade intersection,and but neglects the matching of design traffic capacity of intersection with the practical traffic volume.The practical cases set forth the design method of improving the traffic capacity of intersection by regulating the channelized lane of intersection and the timing of signal lamp,which can be referred and some thoughts for the design optimization of signal lamp intersection.