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Reliability of GPS based traffic data: an experimental evaluation
Dalarna University, School of Technology and Business Studies, Statistics.ORCID iD: 0000-0002-7512-5321
Dalarna University, School of Technology and Business Studies, Statistics. (Statistics)ORCID iD: 0000-0003-2317-9157
Dalarna University, School of Technology and Business Studies, Information Systems. (Geography)ORCID iD: 0000-0003-4871-833X
2014 (English)Report (Other academic)
Abstract [en]

GPS tracking of mobile objects provides spatial and temporal data for a broad range of applications including traffic management and control, transportation routing and planning. Previous transport research has focused on GPS tracking data as an appealing alternative to travel diaries. Moreover, the GPS based data are gradually becoming a cornerstone for real-time traffic management. Tracking data of vehicles from GPS devices are however susceptible to measurement errors – a neglected issue in transport research. By conducting a randomized experiment, we assess the reliability of GPS based traffic data on geographical position, velocity, and altitude for three types of vehicles; bike, car, and bus. We find the geographical positioning reliable, but with an error greater than postulated by the manufacturer and a non-negligible risk for aberrant positioning. Velocity is slightly underestimated, whereas altitude measurements are unreliable.

Place, publisher, year, edition, pages
Borlänge: Högskolan Dalarna, 2014. , 20 p.
Working papers in transport, tourism, information technology and microdata analysis, ISSN 1650-5581 ; 2014:17
Keyword [en]
GPS tracking device, reliability, transportation, road network
National Category
Human Geography
Research subject
Complex Systems – Microdata Analysis
URN: urn:nbn:se:du-16203OAI: diva2:756062
Available from: 2014-10-16 Created: 2014-10-16 Last updated: 2016-09-08Bibliographically approved

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