A TOTAL COST APPROACH TO FLEET REPLACEMENT: THE TRANSPERTH BUS REPLACEMENT MODEL. 14TH AUSTRALIAN TRANSPORT RESEARCH FORUM, PERTH 20-22 SEPTEMBER 1989; FORUM PAPERS. VOLUMES 1 AND 2

This paper describes a method of determining the annual number of replacement buses to be purchased which is optimal in the sense of minimising the net present value of capital and operating costs for the whole transperth fleet over a suitable time horizon. The model takes into account the effect of the introduction of new buses on the annual distance performed by all existing buses, and hence their operating costs. The microcomputer implementation of the model allows the user to interactively examine various replacement policies and to gradually home in on the point at which the trade off between lower operating costs and higher capital costs results in the optimal replacement policy. The sensitivity of the results to variations in key parameters such as bus unit costs, interest rates and inflation can also be examined (a). For the covering record of the forum, see IRRD no 822808.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/073092663X
• Corporate Authors:

  Western Australia Department of Transport

  136 Stirling Highway
  Nedlands, Western Australia,   Australia 
• Authors:
  • BATH, P
• Publication Date: 1989-9

Language

• English

Media Info

• Pagination: p. 495-515
• Serial:
  • Publication of: Western Australia Department of Transport
  • Volume: 2
  • Publisher: Western Australia Department of Transport

Subject/Index Terms

• TRT Terms: Buses; Computers; Costs; Decision making; Economic efficiency; Economic factors; Economics; Management; Mathematical models; Methodology; Operating costs; Policy; Public transit; Transportation
• Uncontrolled Terms: Micro
• Subject Areas: Administration and Management; Economics; Policy; Transportation (General);

Filing Info

• Accession Number: 00497839
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• ISBN: 0-7309-2663-X
• Files: ITRD, TRIS
• Created Date: Sep 30 1990 12:00AM