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基于多目标优化的兴趣点指路标志布设模型

, PP. 154-158

Keywords: 交通工程,指路标志,多目标规划模型,指引路径,网络分析

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Abstract:

在指路标志的工程应用中,常要为兴趣点规划一条布设指路标志的指引路径.首先,基于道路网络的拓扑表达,考虑指引路径的长度、交通量和设置指路标志的数量,定义了衡量指引路径优劣的多目标搜索路径度量值.其次,以网络分析为基础,建立了搜寻最优指引路径的模型,从给定入口开始,以广度搜索算法在路网上搜索,并动态更新搜索路径的度量值,直至获取优化的指引路径.最后,以广州大学城为试验区域,利用上述模型计算得到了从南沙港快线出口到中山大学的指路标志布设的规划路径.对比规划路径与最短路径的多目标优化度量值表明规划路径兼顾了布设路径的便捷性和指路标志牌布设成本的特点,模型是可行有效的.

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