Advances in Switch Machine Technology: GO Transit’s In-Tie Switch Machine Trial Update 2007

The Greater Toronto Transit Authority (GO Transit) operates a regional commuter rail service with a primary operations hub at Toronto’s Union Station. In 1999, GO Transit acquired the 6km long rail corridor adjacent to Union Station known as the Union Station Rail Corridor (USRC). In 2001 GO Transit embarked on a $640 million multi-year infrastructure improvement program to upgrade the entire plant within the USRC. The major contract to be awarded on the program will be for the upgrade of the Signals, Electrical and Communications (SEC) system. Within the SEC contract is the requirement to replace 268 switch machines. Given that the highest percentage of maintenance budgets for signaling systems is spent on switch machines, a committee with representatives from the current USRC operator, the Toronto Terminals Railway (TTR); GO Transit Planning and Rail Services; and GO Transit’s signaling consultant HDI (a joint venture partnership between Hatch Mott MacDonald, Delcan Corp and IBI Group) identified that In-Tie Switch Machine (ITSM) technology had the potential to provide significant operational and maintenance benefits. With this in mind GO Transit implemented an on-site evaluation of In-Tie Switch Machines (ITSM) from 6 manufacturers, as reported in the paper entitled “Advances in Switch Machine Technology: GO Transit’s In-Tie Switch Machine Trial”, which was presented to APTA on June 13, 2006. This paper will refresh the salient points from the 2006 paper, provide the final results of the evaluation, present observed advantages and disadvantages of ITSM technology, define GO Transit’s final position and identify the type of switch machines specified in the SEC Contract.


  • English

Media Info

  • Media Type: CD-ROM
  • Pagination: 5p
  • Monograph Title: 2007 Proceedings Rail Conference

Subject/Index Terms

Filing Info

  • Accession Number: 01051588
  • Record Type: Publication
  • ISBN: 1931594260
  • Files: TRIS
  • Created Date: Jun 12 2007 3:27PM