Characterizing co-modality in urban transit systems from a passengers’ perspective

Naima Islam (), Md Abu Sufian Talukder (), Alex Hainen () and Travis Atkison ()
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Naima Islam: The University of Alabama
Md Abu Sufian Talukder: The University of Alabama
Alex Hainen: The University of Alabama
Travis Atkison: The University of Alabama

Public Transport, 2020, vol. 12, issue 2, No 6, 405-430

Abstract: Abstract Co-modality is a concept based on a unified network system which will ensure the effective and sustainable utilization of all transportation modes. However, the application of co-modality as a measure of evaluating public transit system performance is recent and has been predominantly used in freight transport systems. This study proposes a novel approach by using co-modality as a key performance indicator to characterize public transit systems for passengers. This paper examines a new data set to evaluate transit systems from a user perspective. The data is gathered from an Application Programming Interface (API) which pulls from the real-time General Transit Feed Specification (GTFS). Data was collected over 24 h to explore 4320 transit trips and 69,120 attributes for a single origin–destination pair. Co-modality is used to understand how dozens of transit routes and schedules will best serve transit users. A detailed analysis of trips involving multiple transit segments is conducted to understand how varying headways influence the overall trip travel time. The main conclusion for this paper is that a user perspective is necessary to understand co-modality across public transit systems. Some of the metrics identified in this paper, such as percent of trip spent walking, will be useful in assessing last-mile portions of travel across multiple trips. A better understanding of transit service to travelers by the transit system as a whole will help to improve transportation in dense urban areas.

Keywords: Public transit; Co-modality; Performance; Travel time; GTFS; API (search for similar items in EconPapers)
Date: 2020
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DOI: 10.1007/s12469-020-00228-y

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