城市停车诱导信息板显示优化的双层目标模型

Bi level Objective Model of Display Optimization for Urban Parking Guidance Message Signs

摘要:

针对单目标函数可能难以获得最优显示结果的缺点，以驾车者的停车等待时间最少和到达停车场的总时间最短为双层目标函数，建立了停车诱导信息板的显示优化模型.通过算例计算，对比单目标函数模型与双层目标函数模型的优化结果，表明后者的优化结果具有唯一性，能更好地实现诱导效益的最大化，且更加符合驾车者的停放行为，证明本双层目标模型具有更好的适用性和可行性，能够更加准确地优化停车诱导信息板的信息显示.

Abstract:

To address the problem that the optimal display results can hardly be obtained with singleobjective function model, the optimization model for parking guidance message signs display was formulated based on the bilevelobjective functions of minimizing the total parking queue length and the total arrival time. Through numerical example calculation,the optimal results between singleobjective function model and bilevelobjective functions model were compared. The result shows that the latter model has only one optimal display configuration, which can maximize the guidance benefit and be more coincident with drivers’ parking behavior. The bilevelobjectives model is of better applicability and feasibility,and can better optimize the parking guidance message signs display.