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Abstract

n increasing number of people use smartphone applications to plan their trips. Unfortunately, for various reasons, bus trips suggested by such applications are not as reliable as other trip types (e.g. by car, on foot, or by bicycle), which can result in excessive waiting time, or even the need to revise a planned trip. Traditional punctuality-based bus service reliability metrics do not capture route deviations, which are especially frequent in rapid changing urban environments due to rapidly changing road conditions caused by traffic congestion, road maintenance, etc. The prevalence of GPS data allows buses to be tracked and route deviations to be captured. We use such data to propose and calculate a novel reliability score for bus trips. This score is a linear weighted combination of distance, time, and speed deviations from an expected, pre-defined bus trip. GPS trajectory data is large and noisy which makes it challenging to process. This paper also presents an efficient framework that can de-noise and semantically split raw GPS data by pre-defined bus trips in citywide. Finally, the paper presents a comparative case study that applies the proposed reliability score to publicly available open bus data from Rio de Janeiro in Brazil and Dublin in Ireland.


Original document

The different versions of the original document can be found in:

http://dx.doi.org/10.1109/isc2.2017.8090843
https://researchrepository.ucd.ie/bitstream/10197/9113/1/insight_publication.pdf,
https://academic.microsoft.com/#/detail/2768874483
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Published on 01/01/2017

Volume 2017, 2017
DOI: 10.1109/isc2.2017.8090843
Licence: CC BY-NC-SA license

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