摘要
交通控制和管理是解决城市交通拥挤问题的有效措施。在事件状态下,对快速路交通通道的优化控制建模进行了研究,以快速路和干道交叉口的交通需求与通行能力的方差和最小为优化目标,建立了快速路交通通道优化控制模型,该模型同时优化干道交叉口绿信比、事件上游出口匝道转移率和事件下游入口匝道转移率三个控制参数。最后对目标函数进行了评述,表明该优化控制模型简单实用。
Traffic control and management are effective measures to solve the problems of traffic jam. The optimal control model for freeway corridor is developed under incident conditions, which is in the form of minimization of the summation of the square of the difference between traffic demand and capacity at each intersection and on the freeway bottleneck section. The model optimizes control parameters of phase splits at arterial interactions, off-ramp diversion rates at upstream offramps and on-ramp diversion rates at downstream on ramps. In the end, the objective function is discussed and the optimal control model proved simple and practical.
出处
《系统工程》
CSCD
北大核心
2006年第2期32-36,共5页
Systems Engineering
基金
国家863计划资助项目(2004AA505560)
关键词
交通工程
优化拉制模型
交通事件
交通通道
快速路
Traffic Engineering
Optimal Control Model
Traffic Incident
Traffic Corridor
Freeway
