城市道路网双层规划模型及其应用
BilevelProgramm ingM odel for C ity Road Network Planning and ItsApplication
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摘要: 分析了城市道路网规划的目标以及现有规划模型在应用时存在的不足之处.采用双层规划模型构建了 城市路网规划模型.用迭代算法对该模型求解.以兰州市为例,结合城区实际交通状况和交通需求,采用该模型 及算法进行路网规划,获得了兰州市道路网规划方案.在该方案中从快速路至支路初步形成了“金字塔”形 分布.Abstract: The objectives ofcity road network planning and shortcomings of the available programming modelswere analyzed. A bilevelprogrammingmodelwas proposed for city road network planning, and iteration optimization algorithm was used to solve themode.l As an example of application, themodel was applied in the road network planning ofLanzhou City. Current situations and the future demands on the traffic in the citywere elaberately taken into consideration. A scheme of road network planning forLanzhouwas presented, inwhich a reasonal pyramid distribution of the road typeswas formed.
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Key words:
- planning /
- city road network /
- bilevel programmingmodel /
- application
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