Safety-aware routing for motorised tourists based on open data and VGI

In this work, the authors present a routing approach avoiding relatively dangerous areas within a city. The information of how dangerous some urban areas are is derived using volunteered geographic information (VGI), governmental open data for detecting properties and functionalities of the urban infrastructure and historical crime data from police departments for detecting crime hot spots. Therefore, the authors present the basics of crime mapping and analysis with Geographic Information Systems (GIS), the practical use of VGI for routing and describe the contribution within the field of routing solutions. Afterwards, the authors explore the test data in detail. For the practical use, the authors simplify all the urban infrastructure information and propose a safety index, which represents the relative safety in the investigation area. Additionally, historical crime hot spots are detected and used as routing obstacles. The arcs in the road network are weighted by the safety index and the historical crime hot spots are introduced as obstacle polygons. The authors test the safety-aware routing design on Los Angeles (LA) and assume its use during night times. In this regard, from two relatively far away situated origin and destination points, the authors calculate the least dangerous path and compare it with the calculated shortest path. Vehicle drivers without knowledge about the dangerous areas in the city may use the least dangerous path, which is based on the calculated safety index. Finally, the authors discuss the effectiveness of the method and consider further extensions using freely available geodata.

Language

  • English

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Filing Info

  • Accession Number: 01599323
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 26 2016 3:01PM