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一个城市的交通发展水平直接体现这个城市的社会经济发展状况.上海是一个国际化的城市,经济发达,人口众多.21世纪,上海将建设成为"经济、贸易、金融"中心之一. 相似文献
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The purpose of this paper is to identify the critical road sections and intersections in a road network which have great influence
on the normal transport functions of the road network and to optimize the road network structure by reducing its vulnerability.
In this paper, the framework of road network structural vulnerability measurement and improvement model is proposed. The network
efficiency model is used to define road network structural vulnerability. Shanghai freeway network is analyzed based on this
model. We find that using this model the critical components of the road network can be identified. Two methods which are
increasing connections and rewiring are proposed to optimize the road network structural vulnerability and the results can
be used to reduce the network vulnerability. The measurement method that we put forward for structure vulnerability is useful
and important to optimize road network structure. 相似文献
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基于DCOM式智能体的交通控制系统模型 总被引:2,自引:0,他引:2
章提出了一种智能体的实现方式——DCOM式智能体,并将其应用到交通控制中。针对交通控制中的集中指挥、分级管理和动态变化等特点,将DCOM分布组件技术和智能体技术结合起来。以DCOM式智能体管理交叉口信号、设定道路服务水平,并对堵塞道路选取替换路径,再通过“协作智能体”维护智能体间的通信,从而实现统一指挥、分工协作的交通控制系统。研究表明,此交通控制系统具有更强的稳定性和可扩展性。并减少了人工干预,提高了交通控制的自动化水平。 相似文献