SRA development of high speed turnouts in consultation with Thompsons, Kelly and Lewis

There are many methods available to the Railway Engineer for improving passenger and freight service whilst reducing maintenance costs. These include improved track geometry, crossing loops, multiple and dedicated tracks, improved rolling stock and track components, C.T.C. signalling systems, electrification, and many others. It is a well known fact that one of the limiting factors for improving service is the speed at the which rolling stock can negotiate turnouts generally, and junctions in particular. The installation of high speed turnouts utilizing Swing Nose Crossings supported by concrete bearers allows scheduling of rolling stock not to be necessarily governed by the limitations of Junctions. This involves outlaying capital expenditure initially, but cost benefit analysis indicates that this is cost effective because of extended service life and reduced routine maintenance on the turnout as well as savings in travelling time and reduced fuel consumption and brake wear. The benefits of high speed Turnout will only be apparent if adequate drainage, capping and bottom ballast is provided. It is also assumed that tamping is carried out in a uniform manner, at regular intervals. This paper will detail the design, manufacture, assembly and installation of a prototype high speed junction at Glenfield which has been incorporated as part of the East Hills Campbelltown Railway Project.

Media Info

  • Pagination: 8p. ; PDF
  • Monograph Title: Permanent Way Institution (PWI) NSW, 1987 annual convention

Subject/Index Terms

Filing Info

  • Accession Number: 01711348
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ATRI
  • Created Date: Jul 19 2019 2:22PM