Development of strategic infrastructure and train operations modelling

There have been major changes to Australia's railway industry arising from the combined effects of introducing new interstate train operators, the application of the National Competition Policy and the progressive privatisation of previously Government-owned railways. The most noticeable impact is the separation of the management of railway infrastructure from train operations. There is no single model for doing this in Australia but the effects are similar in different jurisdictions. There is more awareness about the capacity of railway infrastructure to handle competing train operators' train flows. However the means of determining the capacity of a stretch of railway or the best ways of augmenting this capacity to handle given train flows are still being sought. In response to this deficiency in analytical tools TMG International and the University of South Australia began developing a sketch infrastructure and timetable modelling system. This tool, SKETCH, is aimed at the planning for and evaluation of existing and proposed railway infrastructure and/or train timetables. In its first stage of development SKETCH models the infrastructure of a Simple railway network, overlays it with an input timetable and resolves this into a feasible, but not necessarily optimum timetable. SKETCH accepts logical infrastructure and timetable data and reports resolved timetables in classical tabular and graphical forms. There are added diagnostics to compare train lengths against refuge lengths, which is a vital issue for freight train operators wanting to run longer trains. In its next stage of development SKETCH will incorporate a controllable level of optimisation to improve output timetables and to reduce the risk of rejecting infrastructure arrangements because they might not deliver the requisite capacity.

Media Info

  • Pagination: 8p. ; PDF
  • Monograph Title: Railway technology for the 21st century: CORE 2000: conference on railway engineering, May 21-23 2000, Glenelg, South Australia

Subject/Index Terms

Filing Info

  • Accession Number: 01532024
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ATRI
  • Created Date: Jul 29 2014 11:51AM