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Title:

Strategies for Maintaining State of Good Repair for Mixed Transit Fleet

Accession Number:

01519321

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

Maintaining state of good repair is one of the imperative goals of Moving Ahead for Progress in the 21st Century (MAP-21) vision of U.S Department of Transportation (USDOT). The aging transit fleet if not adequately preserved may have adverse effect on public transportation. Many state DOTs and local agencies are concerned about escalating costs of new buses and lack of funds to keep up with the replacement needs of the aging fleet. Lack of adequate resource allocation mechanism creates challenges for agencies to determine whether to purchase or rehabilitate/rebuild existing buses in an era of constrained budgets. This paper presents a novel approach that maximizes the total remaining life of buses at the state level consisting of many transit agencies with varying bus types. A branch and bound integer programing is proposed to optimize total remaining life of buses subjected to policy, budget and other constraints. Two scenarios are presented as options to assist transit agencies to assess better strategies. The first scenario analyzes improvement options applicable to buses with zero years of remaining life. The second scenario is mileage based improvement which allows for buses to be eligible for improvement after they reach a certain mileage. The proposed model is applied for transit agencies in the state of Michigan. The results show that mileage based improvement produces better outcomes than replacement when buses reach service life of zero years. The proposed approach is generalized for use by any transit agency to efficiently allocate resources and preserve the aging transit fleet.

Supplemental Notes:

This paper was sponsored by TRB committee AP010 Transit Management and Performance.

Monograph Accession #:

01503729

Report/Paper Numbers:

14-4001

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Mishra, Sabyasachee

Pagination:

24p

Publication Date:

2014

Conference:

Transportation Research Board 93rd Annual Meeting

Location: Washington DC
Date: 2014-1-12 to 2014-1-16
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; References; Tables

Geographic Terms:

Michigan

Subject Areas:

Economics; Planning and Forecasting; Public Transportation; I10: Economics and Administration; I72: Traffic and Transport Planning

Source Data:

Transportation Research Board Annual Meeting 2014 Paper #14-4001

Files:

TRIS, TRB, ATRI

Created Date:

Jan 27 2014 3:23PM