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Statistical modelling and analysis of sparse bus probe data in urban areas

Research output: Contribution in Book/Report/ProceedingsPaper

Published

  • Andrei Bejan
  • Richard Gibbens
  • David Evans
  • Alastair Beresford
  • Jean Bacon
  • Adrian Friday
Publication date19/09/2010
Host publication13th International IEEE Conference on Intelligent Transportation Systems (ITSC), 2010
PublisherIEEE
Pages1256-1263
Number of pages8
ISBN (Print)978-1-4244-7657-2
Original languageEnglish

Conference

Conference13th International IEEE Annual Conference on Intelligent Transportation Systems
CityMadeira Island, Portugal
Period1/09/10 → …

Conference

Conference13th International IEEE Annual Conference on Intelligent Transportation Systems
CityMadeira Island, Portugal
Period1/09/10 → …

Abstract

Congestion in urban areas causes financial loss to business and increased use of energy compared with free-flowing traffic. Providing citizens with accurate information on traffic conditions can encourage journeys at times of low congestion and uptake of public transport. Installing the measurement infrastructure in a city to provide this information is expensive and potentially invades privacy. Increasingly, public transport vehicles are equipped with sensors to provide real-time arrival time estimates, but these data are sparse. Our work shows how these data can be used to estimate journey times experienced by road users generally. In this paper we describe (i) what a typical data set from a fleet of over 100 buses looks like; (ii) describe an algorithm to extract bus journeys and estimate their duration along a single route; (iii) show how to visualise journey times and the influence of contextual factors; (iv) validate our approach for recovering speed information from the sparse movement data.