车道被占用对市道路通行能力的影响.doc

车道被占用对城市道路通行能力的影响 摘要 车道被占用是指因交通事故、路边停车、占道施工等因素，导致车道或道路横断面通行能力在单位时间内降低的现象。由于城市道路具有交通流密度大、连续性强等特点，一条车道被占用，也可能降低路段所有车道的通行能力，即使时间短，也可能引起车辆排队，出现交通阻塞。如处理不当，甚至出现区域性拥堵。 车道被占用的情况种类繁多、复杂，正确估算车道被占用对城市道路通行能力的影响程度，将为交通管理部门正确引导车辆行驶、审批占道施工、设计道路渠化方案、设置路边停车位和设置非港湾式公交车站等提供理论依据。 关键词：车道被占用；城市道路通行能力;区域性拥挤；交通管理部门；优化管理；Lingo软件；MATLAB软件 The problem of Lane occupied effects on urban road capacity ABSTRACT Refers to in a traffic accident, the road lanes occupied parking, roadway taking-up factors such as construction, lead to a driveway or road cross-section capacity in unit time to reduce the phenomenon. Because the city road has characteristics of traffic flow density, continuity, is occupied a driveway, may also reduce the stretch all lanes of traffic capacity, even if the time is short, also may cause the vehicle queuing, a traffic jam. If mishandled, appear even regional congestion. Lanes occupied the phyletic and various, complicated, to correctly estimate the lanes occupied the influence degree of the urban road traffic capacity, to correctly guide for traffic management department of vehicle, the presence of examining and approving the construction, design highly channelizing scheme of the road, roadside parking Spaces, and set the bus bay bus station and so on. Key words:Lane occupied; Urban road traffic capacity; Crowded areas; The traffic administrative department; Optimization of management; Lingo software. MATLAB software 目 录 1 问题的提出................................................1 2 问题的分析................................................1 3 问题的假设................................................3 4 符号说明..................................................4 5 模型的建立................................................5 5.1 模型的准备工作........................................5 5.2建立模型与求解.........................................6 5.2.1 问题一模型建立与求解............................6 5.2.2 问题二模型建立与求解.............................7 5.