Research on Connectivity Reliability of OD in Urban Road Network Based on Floating Car Data

doi:10.3969/j.issn.1674-0696.2016.02.22

Abstract

Abstract: A road connectivity reliability model based vehicular speed of the road section was established. In this model, the connectivity of a given road section was indicated by the ratio of freedom loss of vehicle on given road section in real scenario in relation to that of free running scenario. Connectivity was expanded from the 0,1 binary value judgment to the interval ［0, 1］. By taking Guangzhou city as an example, the model was applied to analyze the changes of the connectivity reliability of the road sections based on the floating car data (FCD) of taxi GPS. A conclusion is drawn that the percentage of the sections of good connectivity reliability in the afternoon is about 10%~35% lower than those in other periods, and drops to 51.2%, the lowest in the evening peak. 

Key words: transportation engineering, connectivity reliability, series and parallel method, urban road network, FCD

摘要： 提出基于路段车速的道路连通可靠度模型，模型将路段在实际状态下相对畅行状态车辆自由度损失的比例作为该路段的连通度指标，把连通可靠度从0,1的二值判断拓展至［0,1］区间。并以广州市为例，结合出租车浮动车的GPS数据，将模型应用于分析广州市路段可靠度在各时段的变化，发现广州市在下午达到良好连通可靠度的路段比率相对其他时段低10%~35%，晚高峰达到最低值，跌至51.2%。

关键词: 交通工程, 连通可靠度, 串并联方法, 城市路网, 浮动车

CLC Number:

U491.1+3

HU Jihua , YANG Yuanyuan , CHENG Zhifeng , LIANG Jiaxian ,. Research on Connectivity Reliability of OD in Urban Road Network Based on Floating Car Data[J]. Journal of Chongqing Jiaotong University(Natural Science), 2016, 35(2): 105-109.

胡继华，杨媛媛，程智锋，梁嘉贤,. 基于浮动车数据的城市路网OD连通可靠度研究[J]. 重庆交通大学学报（自然科学版）, 2016, 35(2): 105-109.

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