交通运输系统工程与信息

交通运输系统工程与信息 ›› 2019, Vol. 19 ›› Issue (5): 42-49.

• 智能交通系统与信息技术 • 上一篇    下一篇

车行指路系统信息连续性分析及量化算法

张建旭*1a, 1b，郑海兵2   

  1. 1. 重庆交通大学a. 交通运输学院，b. 重庆市交通运输工程重点实验室，重庆 400074； 2. 江西省交通设计研究院有限责任公司，南昌 330052
  • 收稿日期:2019-03-19 修回日期:2019-05-02 出版日期:2019-10-25 发布日期:2019-10-25
  • 作者简介:张建旭(1979-)，男，河南长葛人，副教授，博士.
  • 基金资助:

    国家自然科学基金青年科学基金/ Young Scientists Fund of the National Natural Science Foundation of China (51508061)；重庆市交通运输工程重点实验室开放基金/Chongqing Key Laboratory of Traffic & Transportation(2018TE03).

Analysis and Quantization Algorithm of Information Continuity in Vehicle Guide Sign System

ZHANG Jian-xu1a, 1b, ZHENG Hai-bing2   

  1. 1a. School of Traffic & Transportation, 1b. Chongqing Key Laboratory of Traffic & Transportation, Chongqing Jiaotong University, Chongqing 400074, China; 2. Communications Design & Research Institute Co., Ltd of Jiangxi Province, Nanchang 330052, China
  • Received:2019-03-19 Revised:2019-05-02 Online:2019-10-25 Published:2019-10-25

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摘要：

指路标志信息连续性是驾驶者在复杂路网中顺利出行的保障. 本文以路网指路标志信息系统为研究对象，从宏观、中观、微观3 个层面分析指路系统信息的连续性，提出系统、频度信息项、区域、方位、路径等不同层级的连续性量化指标，利用空间聚类分析识别指路信息项目标地的辐射方位，基于有效路径三原则筛选每个方位的路径集；考虑路径各节点指路信息项的前后承接特征、道路及交通设施条件量化驾驶人心理预期，即节点信息连续度；设计了路网及指路信息项、转向特征等属性的数据存储结构，提出指路系统连续度量化算法，以实现其信息连续性计算. 最后，以重庆市渝中区路网指路信息系统为例，对连续性分析模型及量化算法进行验证.

关键词: 交通工程, 连续性, 有效路径, 指路标志, 指路信息系统

Abstract:

The continuity of guide sign information is the guarantee for the driver to travel to the right direction in complex road network. This paper analyzes the continuity of guiding system information based on the macro, meso and micro levels. The quantitative indicators for different continuous levels are proposed such as system, frequency information items, region, guiding direction, and path. The spatial clustering analysis method is used to identify guiding directions of destinations related to guide information items, and the effective path set in each direction is screened based on three principles. It calculates the continuous degrees of nodes with consideration of driver's psychological expectation constructed by considering the coherence of guiding information items within the front and back adjacent nodes in one path, and conditions of road and traffic facilities. The data structure designed to store guide information items and routes turning characteristics at nodes, and continuous quantization algorithm are developed to calculate the continuity for the network guiding sign system. Finally, taking the guiding sign system in Yuzhong District of Chongqing, China, as an example, the feasibility of continuity analysis model and the quantization algorithm is verified by demonstrated some core steps.

Key words: traffic engineering, continuity, effective path, guide sign, guide sign information system

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