Reliability of GPS based traffic data: an experimental evaluation


Autoria(s): Zhao, Xiaoyun; Carling, Kenneth; Håkansson, Johan
Data(s)

2014

Resumo

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.

Formato

application/pdf

Identificador

http://urn.kb.se/resolve?urn=urn:nbn:se:du-16203

Idioma(s)

eng

Publicador

Högskolan Dalarna, Statistik

Högskolan Dalarna, Statistik

Högskolan Dalarna, Informatik

Högskolan Dalarna, Kulturgeografi

Borlänge

Relação

Working papers in transport, tourism, information technology and microdata analysis, 1650-5581 ; 2014:17

Direitos

info:eu-repo/semantics/openAccess

Palavras-Chave #GPS tracking device #reliability #transportation #road network #Human Geography #Kulturgeografi
Tipo

Report

info:eu-repo/semantics/report

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