Analysis of behaviour of vehicles using VGI data

Abstract

This article describes a methodology for analysing the behaviour of vehicles on roads using data obtained from Volunteered Geographic Information and more specifically from GNSS traces. These data have a great potential for this goal due to their distribution, continuity and anonymity. The proposed methodology includes all possible stages, from traces selection and downloading, passing by filtering, matching and enrichment using official linestrings, to the final obtaining of results. The article also shows the main results obtained after applying this methodology to a real case that uses a large quantity of traces, distributed over a large zone of study, including several types of roads and conditions. These results allow us to analyse the behaviour of the implicated vehicles based on the speed and the acceleration or deceleration of each trackpoint which composes the traces and compare them with the general official data published by the traffic authorities. The analysis of the results has demonstrated the viability of this methodology and its possible implementation by traffic authorities in order to obtain information to improve traffic safety.

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