Acta Geodaetica et Cartographica Sinica ›› 2019, Vol. 48 ›› Issue (1): 75-85.doi: 10.11947/j.AGCS.2019.20170448

• Cartography and Geoinformation • Previous Articles     Next Articles

Fine-grained analysis of traffic congestions at the turning level using GPS traces

TANG Luliang1, KAN Zihan1, REN Chang1, ZHANG Xia2, LI Qingquan1,3   

  1. 1. State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430079, China;
    2. School of Urban Design, Wuhan University, Wuhan 430072, China;
    3. Shenzhen Key Laboratory of Spatial Smart Sensing and Services, College of Civil Engineering, Shenzhen University, Shenzhen 518060, China
  • Received:2017-08-30 Revised:2018-09-19 Online:2019-01-20 Published:2019-01-31
  • Supported by:

    The National Key Research and Development Program of China (Nos. 2017YFB0503604;2016YFE0200400);The National Natural Science Foundation of China (Nos. 41671442;41571430)

Abstract:

For the issue that existing approaches on studying traffic conditions using GPS traces lack of detailed analysis of traffic congestion, this paper puts forward an approach for detecting traffic congestion events based on taxis' GPS traces at turning level. Firstly, this approach analyzed taxis' operating patterns and filtered valid traces. Then this approach detected traffic congestion traces of three different intensities:mild congestion, moderate congestion and serious congestion, based on analyzing traffic conditions from the filtered valid trace segments. Finally, traffic flow speed, congestion time and congestion distance of each turning direction at an intersection were explored at a fine-grained level. The experimental results show that the proposed approach is able to detect congestions of different intensities and analyze congestion events at turning level.

Key words: traffic congestions, turning-level, space time analysis, GPS trace, big data

CLC Number: