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| 临界簇模型及其在地面公交线网可达性评价中的应用 | |
| 引用本文： | 陈翔,李强,王运静,陈晋,唐巧.临界簇模型及其在地面公交线网可达性评价中的应用[J].地理学报,2009,64(6):693-700. |
| 作者姓名： | 陈翔 李强 王运静 陈晋 唐巧 |
| 作者单位： | 1. 北京师范大学资源学院,北京,100875 2. 北京师范大学减灾与应急管理研究院,北京,100875 3. 北京师范大学信息科学与技术学院,北京,100875 |
| 基金项目： | 教育部留学回国人员科研启动基金，科技部科技支撑计划项目 |
| 摘 要： | 发展公共交通对于解决城市交通问题意义重大,提高地面公交可达性是增强公共交通吸引力的有效途径之一.用于区域疏散风险评价的临界簇模型(Critical Cluster Model,CCM)将需要疏散的人口与由此产生的对道路容量的需求相结合,通过对道路网进行全局优化,确定具有较高疏散困难度的区域.基于道路容量需求与可达性所表征的交通便捷程度意义相反的关系,以地面公交线网为对象,在已知城市人口分布的条件下,考虑公交线路重复数的影响,对CCM加以改进,提出通过计算公共交通线路容量需求来评价地面公交线网可达性的方法.将CCM应用于北京市地面公交线网可达性评价的结果表明,这一方法具有一定的实用性.鉴于地面公交线网可达性的重要意义和CCM的可扩展性,今后需要在现有工作基础上,对可达性评价方法进行深入探讨. |
| 关 键 词： | 临界簇模型(CCM) 公共交通线网 可达性 地理信息系统(GIS) 北京 |
| 收稿时间： | 2008-09-19 |
The Critical Cluster Model and Its Application in Accessibility Assessment of Public Bus Network |
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| CHEN Xiang,LI Qiang,WANG Yunjing,CHEN Jin,TANG Qiao.The Critical Cluster Model and Its Application in Accessibility Assessment of Public Bus Network[J].Acta Geographica Sinica,2009,64(6):693-700. | |
| Authors: | CHEN Xiang LI Qiang WANG Yunjing CHEN Jin TANG Qiao |
| Institution: | 1. College of Resources Science and Technology;Beijing 100875;China;2. Academy of Disaster Reduction and Emergency Management;3. College of Information Science and Technology;Beijing Normal University;China |
| Abstract: | The Critical Cluster Model (CCM) is a network optimization model that can be used to identify neighborhoods facing transportation difficulties during an evacuation process. It defines the Bulk Lane Demand (BLD) as the ratio of population to exit capacity that is adversative to the meaning of accessibility. Based on this context, this paper applies CCM to assess the accessibility of public bus network by introducing multiple bus lines in the certain road sections and considering the spatial distribution of p... |
| Keywords: | Critical Cluster Model public bus network accessibility Geographical Information System Beijing |
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