TRB Pubsindex
Text Size:
x

« Prev Next »

Return to Results | New Search

Bookmark and Share

Title:

Measuring the Impacts of New Public Transit Services on Space-Time Accessibility

Accession Number:

01663530

Record Type:

Component

Abstract:

The absence of reliable access to opportunities and services is a key contributor to substandard socio-economic (e.g., poverty) and health (e.g., high infant mortality) outcomes in underserved neighborhoods in many cities. To help alleviate the problems, the city of Columbus, Ohio, USA is attempting to enhance residents’ accessibility by providing new public transit services. These new services include a major Transit System Redesign (TSR) of the conventional bus network and constructing a new bus rapid transit, named CMAX. Using a high-resolution space-time accessibility measure, this study analyzes whether these new public transit services will change residents’ accessibility to job and healthcare in an underserved neighborhood of Columbus. Also, this research assesses whether enhancing the CMAX service to reduce delays (e.g., reserved lane, off-board payment system) will improve accessibility. The high-resolution space-time accessibility measure in this study uses published public transit schedules via the General Transit Feed Specification (GTFS). Multiple departure times during a day are used to account for the temporal fluctuations of accessibility based on the transit schedule changes. The operating hours of the job opportunities and healthcare services are also considered. Results suggest that the TSR yields ambiguous benefits for accessibility to jobs and healthcare. However, the new CMAX service and its potential upgrades lead to a substantial increase in both job and healthcare accessibility. The results can be used for city officials and urban planners to evaluate the effectiveness of public transit innovations in improving accessibility.

Supplemental Notes:

This paper was sponsored by TRB committee AP025 Standing Committee on Public Transportation Planning and Development.

Report/Paper Numbers:

18-02609

Language:

English

Authors:

Lee, Jinhyung
Miller, Harvey J

Pagination:

21p

Publication Date:

2018

Conference:

Transportation Research Board 97th Annual Meeting

Location: Washington DC, United States
Date: 2018-1-7 to 2018-1-11
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; Maps; References; Tables

Geographic Terms:

Columbus (Ohio)

Subject Areas:

Planning and Forecasting; Public Transportation; Society

Source Data:

Transportation Research Board Annual Meeting 2018 Paper #18-02609

Files:

TRIS, TRB, ATRI

Created Date:

Jan 8 2018 10:37AM