O-Train Commuter Line Header Image

O-Train Commuter Line

Project Profile

Supply and installation of new signal control points as well as intermediate locations for the O-Train commuter line.


The Project

Signals and Communications: A&B Rail Services was hired as a subcontractor to supply and install new bungalows and signals at all control points, signal housings at intermediate locations, all track circuits, and industrial locations to accommodate for the growth of the O-Train commuter line in Ottawa, Ontario.



  • 4 control point bungalows
  • 2 intermediate S&C housings
  • 12 industrial cases
  • 14 free standing signals (control / intermediate)
  • 4 US&S M23B dual controlled switch machines


The Result

A satisfied client and another quality project completed. This enormous project is a prime example of A&B Rail Services expertise, capabilities, and commitment to Doing It Right. There were a number of challenges that came up during the project that A&B Rail Services was able to overcome. Some of these challenges included poor access to the work areas, sharing work space with a number of other contractors, and maintaining an aggressive time line on short overnight work blocks. As the safety of our team, our client, and the public has always been A&B Rail Services’ number one priority, procedures and systems were put in place to ensure all goals and safety standards were met. For A&B Rail Services, it means another satisfied customer in our 50-year journey to become Canada’s largest, most experienced, and most sought-after rail services company.