Detecting Illegal Vehicle Parking Events using Sharing Bikes’ Trajectories
Tianfu He (Harbin Institution of Technology); Jie Bao (Independent); Ruiyuan Li (Urban Computing Business Unit, JD Finance); Sijie Ruan (Urban Computing Business Unit, JD Finance); Yanhua Li (Worcester Polytechnic Institute (WPI)); Chao Tian (Beijing Mobike Technology Co., Ltd.); Yu Zheng (Urban Computing Business Unit, JD Finance)
Illegal vehicle parking is a common urban problem faced by major cities in the world, as it incurs traffic jams, which lead to air pollution and traffic accidents. Traditional approaches to detect illegal vehicle parking events rely highly on active human efforts, e.g., police patrols or surveillance cameras. However, these approaches are extremely ineffective to cover a large city. The massive and high quality sharing bike trajectories from Mobike offer us with a unique opportunity to design a ubiquitous illegal parking detection system, as most of the illegal parking events happen at curbsides and have significant impact on the bike users. Two main components are employed to mine the trajectories in our system: 1)~trajectory pre-processing, which filters outlier GPS points, performs map-matching and builds indexes for bike trajectories; and 2)~illegal parking detection, which models the normal trajectories, extracts features from the evaluation trajectories and utilizes a distribution test-based method to discover the illegal parking events. The system is deployed on the cloud internally used by Mobike. Finally, extensive experiments and many insightful case studies based on the massive trajectories in Beijing are presented.
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