交通运输系统工程与信息 ›› 2013, Vol. 13 ›› Issue (2): 27-33.

• 智能交通系统与信息技术 • 上一篇    下一篇

基于路径流的多粒度交通仿真研究

杜鹏*1, 田宗忠2, 周学松3   

  1. 1.北京交通大学 交通运输学院城市交通复杂系统理论与技术教育部重点实验室,北京 100044; 2.内华达大学 里诺分校,里诺 89557,内华达州,美国; 3.犹他大学,盐湖城 84112,犹他州,美国
  • 收稿日期:2013-01-28 修回日期:2013-02-22 出版日期:2013-04-25 发布日期:2013-04-27
  • 作者简介:杜鹏(1974-),男,河南焦作人,讲师.
  • 基金资助:

    国家自然科学基金重点项目(71131001); 国家基础研究计划项目(2012CB725406).

Path Flow Based Cross Resolution Conversions for Simulation Model

DU Peng1, TIAN Zong-zhong2, ZHOU Xue-song3   

  1. 1.MOE Key Laboratory for Urban Transportation Complex Systems Theory and Technology, School of Traffic and Transportation, Beijing Jiaotong University, Beijing 100044, China;  2. University of Nevada, Reno, NV 89557, USA; 3. University of Utah, Salt Lake City, UT 84112, USA
  • Received:2013-01-28 Revised:2013-02-22 Online:2013-04-25 Published:2013-04-27

摘要:

针对局部交通状况分析所需要的多粒度仿真功能,本文分析了从宏观规划模型到微观仿真模型转换时的逻辑保证和数据需求,设计了一种基于路径流的多粒度交通仿真方法,从物理、逻辑和运行三个层面实现了从基于点和线的宏观路网到基于车道的微观路网的转换.针对转换过程中交通小区质心及其路网连接线等虚拟实体的处理问题,本文进一步提出了新的支路近似方法.基于上述方法,开发了适用于TransCAD和VISSIM模型转换的软件包,方便地实现了从宏观路网中局部区域交通状况分析到微观路段交通流量仿真的一致性转换.

关键词: 交通工程, 多粒度仿真工具, 一致性转换, 局部交通分析, 基于车道的扩展, 连接线转换

Abstract:

Sub area traffic analysis is one of critically needed capabilities in practical traffic engineering applications. This paper aims to develop a fully automated network conversion and calibration tool to assist engineers easily extract a portion of a macroscopic planning network to construct a consistent subarea of interest, and then convert it into a detailed model suitable for microscopic simulation. A crossresolution simulation (CRS) method is adopted in this paper, which allows a rapid extraction of selected subareas from a regional planning network with OD matrix, and a lanebased expansion of the network topology, a consistent regeneration of subarea path flow and link volume. This paper integrates the abovementioned key modeling components into an opensource package and conducts a case study to demonstrate its effectiveness.

Key words: traffic engineering, crossresolution simulation tool, consistent conversion, subarea analysis, lanebased expansion, connector conversion

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