00453103

Component

http://onlinepubs.trb.org...trr/1985/1013/1013-002.pdf

https://scholar.google.co...Lall&publication_year=1985

U.S. transit operators are faced with escalating operating deficits along with growing opposition to the increase in taxes required to offset them. This financial situation has created an immediate need to restructure inefficient and underproductive transit operations. In response to this need, this study developed an analytical framework to help control transit operating deficits. A bilevel optimization model based on nonlinear programming was developed at system and route levels of detail. The model postulates that transit operators could reach a feasible solution for minimizing operating deficits through modifications of current fare and service policies. The model has an economic framework (through the specification of appropriate cost and revenue functions) and solves for optimality through system supply-demand equilibrium. Solutions of the optimization model will provide transit operators with specific operating guidelines for minimizing deficits subject to resource and policy constraints. The nonlinear optimization model is solved using a large-scale (sparse matrix) successive linear programming algorithm. The model was implemented on a microcomputer and was tested with a real-world application to establish its practicality and usefulness.

Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.

01419896

pp 9-19

1985

Transportation Research Record

0309039029

Print

Figures (6) ; References (11) ; Tables (3)

Algorithms; Bus routes; Deficits; Demand; Economics; Fares; Level of service; Linear programming; Mathematical models; Microcomputers; Minimization; Operating costs; Operating revenues; Optimization; Policy; Public transit; Supply

Supply and demand

Economics; Highways; Operations and Traffic Management; Planning and Forecasting; Policy; Public Transportation; I72: Traffic and Transport Planning

TRIS, TRB

May 31 1988 12:00AM

• ANALYSIS OF BUS TRANSIT'S OPERATING LABOR EFFICIENCY USING SECTION 15 DATA
• GETTING CONTROL OVER OPERATING BUDGETS: METHODOLOGY FOR EVALUATING PRODUCTIVITY ALTERNATIVES
• GUIDED TOUR THROUGH THE SECTION 15 MAZE
• IMPROVING SECTION 15 PASSENGER DATA COLLECTION TECHNIQUES
• PART-TIME PUBLIC TRANSIT OPERATORS: EXPERIENCES AND PROSPECT
• RESEARCH IMPLICATIONS OF PROPOSED CHANGES IN THE UMTA SECTION 15 REPORTING SYSTEM
• REVIEW OF THE USE OF PART-TIME TRANSIT OPERATORS AND METHODS FOR ASSIGNING PART-TIME WORK
• SOLON: INTERACTIVE METHOD FOR EVALUATING AND IMPROVING TRANSIT ROUTE PERFORMANCE
• TRANSIT OPERATOR PERFORMANCE EVALUATION: STUDY GROUP REVIEW AT MUNI