Airport Rail Link – Union to Pearson Express Station

MMM provides multi-disciplinary services for express rail service between two of Canada's busiest transportation hubs

One of the most ambitious transportation projects in the history of Ontario is on-schedule to go into service for the start of the Toronto 2015 Pan Am / Parapan Am Games.

The Airport Rail Link (ARL) Spur project will produce a new elevated guideway structure constructed between the GO Georgetown South Corridor and Toronto Pearson’s Airport Terminal 1 (T1), including a new station at T1 with trains running every 15 minutes. Spur and T1 stations are being procured though Infrastructure Ontario’s Alternative Finance and Procurement model as a design-build-finance project.

Project will create jobs and accelerate economic growth for businesses and communities. The rail line will provide strong environmental benefits by eliminating over one million car trips within the first year of operation.

  • MMM’s engineering and technical advisory services include preparation of technical specifications and other technical documentation for the procurement process, outlining the construction requirements of the spur line and station
  • MMM may provide additional technical support to Infrastructure Ontario and Metrolinx during the implementation phase of the project
  • MMM provided preliminary design for future GO Transit commuter rail expansion, including three new tracks and major grade separation for a separate, privately run airport link from Union Station to north of Highway 427, as well as a separate spur link into Pearson International Airport
  • Performed Individual Environmental Assessment and submitted required Terms of Reference to Ontario’s Ministry of Environment, after more than a year of public consultation
  • Completed first Regional Transportation Master Plan, including the Georgetown Expansion, under approval of new Transit Assessment Process
  • Additional requirements included assessment of noise, vibration, air quality, and long-term health effects


  • operations plan development
  • technical advisory services
  • Global AirRail Awards Project of the Year, 2013

  • Location: Toronto, Ontario