The impact of temporal resolution on public transport accessibility measurement: Review and case study in Poland

Marcin Stępniak, John P. Pritchard, Karst T. Geurs and Sławomir Goliszek

Journal of Transport Geography, 2019, vol. 75, issue C, 8-24

Abstract: In recent years there has been a significant increase of temporally variable analyses of accessibility by public transport as a result of the increased availability of open and standardized time table information in the form of GTFS (General Transit Feed Specification) data. To date, very little attention has been paid to systematically analyze the impact of temporal resolutions on the results. Different authors have applied different standards, often in an ad-hoc manner. In this study, we address the loss of precision associated with a stepwise reduction of the temporal resolution of travel time estimations based on GTFS data for the city of Szczecin in Poland. The paper aims to provide guidance to researchers and practitioners on the selection of appropriate temporal resolutions in accessibility studies. We test four sampling methods in order to analyze four different public transport frequency scenarios, three types of accessibility measures (travel time to the nearest provider, cumulative opportunities measure and potential accessibility) and seven types of destinations ranging from high to low centrality. Additionally, the impact on spatial disparities is explored using the Gini coefficient.

Keywords: Accessibility; Travel time; Temporal resolution; Public transport; GTFS (search for similar items in EconPapers)
Date: 2019
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Citations: View citations in EconPapers (23)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:jotrge:v:75:y:2019:i:c:p:8-24

DOI: 10.1016/j.jtrangeo.2019.01.007

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