动态交通分配中一种多模式动态决定式点排队模型及其特性分析

Analysis of Multi-mode Dynamic Deterministic Point Queue Model Properties in Dynamic Traffic Assignment

提出了一个可应用于动态交通分配中的多模式决定式点排队模型。模型中不同的交通模式(如小汽车、卡车和公交车等)由于车辆特性以及长度的差异在路网中将分别具有不同的行驶特性。为了能够反映不同模式车辆在路段上的相互作用,将单模式点排队模型扩展为多模式点排队模式。并对这个模型的相关特性进行了研究,如:反映不同模式车辆在路段上的速度收敛特性,在路段上每一模式车辆的先入先出特性(FIFO)以及路段上不同模式车辆的因果特性。

A multi-mode dynamic deterministic point model for dynamic traffic assignment is proposed.The mode classes typically refer to different vehicle types such as passenger cars, trucks, and buses sharing the same road space. Each vehicle type has its own characteristics, such as free flow speed, vehicle size. A single mode deterministic point mode is extended to muhimode deterministic point model for modeling the asynuneLric interactions among various modes. It is proved that the multimode deterministic point model within each mode-user meets the FIFO discipline, the speeds of different modes approach consistent during congestion, and the causality of different modes on link.