Public Open House: Union Pearson Express Electrification Environmental Assessment


Just wanted to keep you informed about the Union Pearson Express Electrification Environmental Assessment – Public Open House.


“We are writing to provide you with a brief update on the Union Pearson Express (UP Express) Electrification project as well as to inform you of the upcoming Public Open Houses (see below) being held as part of the Environmental Assessment (EA) process.  In addition to this email update, we would be happy to meet with you in person to further discuss the project, if you wish.


Metrolinx completed the GO Electrification Study in December 2010, which examined electrification of the entire GO Transit rail system as a future alternative to diesel trains currently in service.  Based on the findings of this study, Metrolinx initiated the Environmental Assessment (EA) for Electrification of the Union Pearson (UP) Express service from Union Station to Pearson International Airport.  This involves electrification of approximately 25km of track along the Union Station Rail corridor and Kitchener rail corridor, beginning west of the Union Station train shed to Highway 427, where the route then follows the new UP Express spur link into Terminal 1 at Pearson Airport.  The map below shows the EA study area, including proposed locations for traction power facilities and a maintenance facility, as well as a section within the Lakeshore West GO Transit rail corridor where a low voltage electrical feeder line is proposed.


The scope of the project includes development of performance standards for electrification, engineering design of the electrical power supply and distribution for the UP Express service, and completion of an EA study to assess the potential effects of converting the UP Express service from diesel to electric power.


Electrification of the UP Express will necessitate new electrical connection facilities as part of the power supply component of the project, which will be provided by Hydro One.  As a result, Metrolinx and Hydro One are proposing to carry out an integrated EA process to satisfy the requirements of O. Reg. 231/08 – Transit Project Assessment Process (TPAP) and Hydro One’s Class EA for Minor Transmission Facilities.


As part of the EA process, Metrolinx is holding a series of Public Open Houses to share a project update, and seek feedback on the following:


  • Overview of Conceptual Design for UP Express Electrification:
    • Traction power supply
    • Traction power distribution
    • Maintenance requirements
  • Overview of EA Studies
  • Next Steps

Interested persons are encouraged to attend the Open House:


Tuesday, June 4, 2013Pearson International AirportViscount Station6100 Viscount Road, Mississauga ONTime: 6:30pm – 8:30pm Monday, June 10, 2013Metro HallRoom 31455 John Street   
Toronto, ONTime: 6:30pm – 8:30pm
Tuesday, June 11, 2013Mimico Presbyterian Church119 Mimico Ave.Etobicoke, ONTime: 6:30pm – 8:30pm Wednesday, June 12, 2013Weston Legion1050 Weston Rd.Toronto, ONTime: 6:30pm – 8:30pm


For additional information on this project, please visit: Please contact me if you have questions or would like to schedule a briefing. ”





Karen Pitre

Executive Director, Electrification


20 Bay St., Suite 600

Toronto, Ontario  M5J 2W3

Phone:  (416) 874-5910