Modeling of optimal control for urban freeway corridor under incident conditions  被引量:3

Modeling of optimal control for urban freeway corridor under incident conditions

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作  者:Jianhu ZHENG Decun DONG 

机构地区:[1]Scholl of Transportation Engineering, Tongji University, Shanghai 200092, China

出  处:《控制理论与应用(英文版)》2006年第3期252-256,共5页

基  金:This work was supported by the national 863 project of China (No. 2004AA505560).

摘  要:Traffic control and management are effective measures to solve the problem of traffic congestion. The optimal control model for freeway corridor is developed under incident conditions, which is in the form of minimization of the sum 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 intersections, off-ramp diversion rates at upstream off-ramps and on-ramp diversion rates at downstream on ramps. Finally, the objective function is discussed and it is showed that the optimal control model is simple and practical.Traffic control and management are effective measures to solve the problem of traffic congestion. The optimal control model for freeway corridor is developed under incident conditions, which is in the form of minimization of the sum 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 intersections, off-ramp diversion rates at upstream off-ramps and on-ramp diversion rates at downstream on ramps. Finally, the objective function is discussed and it is showed that the optimal control model is simple and practical.

关 键 词:FREEWAY Optimal control Model construction Traffic corridor Traffic incident 

分 类 号:U412.366[交通运输工程—道路与铁道工程]

 

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