基于公交时空过程的城市时空可达性计算方法

交通运输系统工程与信息 ›› 2014, Vol. 14 ›› Issue (4): 146-153.

基于公交时空过程的城市时空可达性计算方法

胡继华^*1，李国源¹，钟广鹏²

1. 中山大学工学院智能交通研究中心，广州510006 ；2. 中国城市规划设计研究院深圳分院，广东深圳518040

收稿日期:2013-12-16 修回日期:2014-03-31 出版日期:2014-08-25 发布日期:2014-09-16
作者简介:胡继华(1971-)，男，河南人，讲师，博士.
基金资助:
国家自然科学基金（41271181）；国家863 计划项目（2012AA121402）；广州市科技计划项目（2011Y3-00061）.

Measuring Space-Time Accessibility within Bus Network Based on Space-time Process of Bus

HU Ji-hua¹, LI Guo-yuan¹, ZHONG Guang-peng²

1.Research Center of Intelligent System, School of Engineering, Sun Yat-sen University, Guangzhou 510006,China; 2.China Academy of Urban Planning & Design of Shenzhen, Shenzhen 518040, Guangdong, China

Received:2013-12-16 Revised:2014-03-31 Online:2014-08-25 Published:2014-09-16

摘要/Abstract

摘要：

交通系统的本质目标是为了提高个体的可达性.已有的基于时空维的时空可达性计算方法忽略交通模式选择的约束，以及对于出行时间没有确切的概念，因此，提出了基于公交时空过程的城市时空可达性计算方法.该方法以特定的公交出行时空约束作为效用函数，从历史公交时空过程中获取公交出行时间，对于出行时间的计算更具可操作性；并且，其考虑特定的时空约束下个体参与活动的效用值，显得更加严谨.同时该方法将特定的交通出行方式作为一种出行的时空约束，更加符合现实情况.最终，以广州市公交系统为研究对象，运用该方法计算特定时空约束下个体出行的城市时空可达性.结果表明该方法具有有效性和可操作性.

关键词: Measuring Space-Time Accessibility within Bus Network
Based on Space-time Process of Bus交通工程, 时空可达性计算方法, 公交时空过程, 公交系统, 时空约束

Abstract:

Transportation systems exist to improve individual accessibility. The existing space-time accessibility measure (STAM) method based on space-time pyramid ignores the limit to the choice of traffic pattern, and had no exact concept about travel time. Therefore, this paper proposes the space-time accessibility measures method on the basis of space-time process. The method takes the space-time constraint on bus as utility function, and gets the travel time by bus from space-time process, thus it is more tractable on the calculation of travel time. Besides, the method can be more rigorous by the consideration of user and locational benefit based on mandatory space-time constraint. And the method takes traffic modes as a kind of space-time constraint, so it is more realistic. At last, the article studied bus transport system of Guangzhou, and used the method to calculate space- time accessibility of individual trip under the mandatory space- time constraint. The result shows that the proposed method is effective and tractable.

Key words: traffic engineering, space- time accessibility measure, space- time process of bus, bus system, space-time constraint

中图分类号:

U491.1+7

胡继华，李国源，钟广鹏. 基于公交时空过程的城市时空可达性计算方法[J]. 交通运输系统工程与信息, 2014, 14(4): 146-153.

HU Ji-hua, LI Guo-yuan, ZHONG Guang-peng. Measuring Space-Time Accessibility within Bus Network Based on Space-time Process of Bus[J]. Journal of Transportation Systems Engineering and Information Technology, 2014, 14(4): 146-153.

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