TOP100 2026 Report - Report - Page 14
3
RAIL
GO Expansion –
On-Corridor Works
$15.7 BILLION
2025 Rank: 2
Project Owner: Metrolinx
Procurement Agent: Infrastructure Ontario
P3 Team: ONxpress Transportation Partners
Systems and Integration Team: ALSTOM Transport Canada Inc.
Construction, Design and Engineering Team: Aecon Infrastructure Management
Inc., ALSTOM Transport Canada Inc., FCC Construccion S.A., WSP, Hatch
Fixed Infrastructure Maintenance Team: Deutsche Bahn International
Operations GmbH, Aecon O&M, a division of Aecon Construction Group Inc.
Operator Team: Deutsche Bahn International Operations GmbH, Aecon O&M, a
division of Aecon Construction Group Inc.
Other Key Players: Stantec (planning and envrionmental engineer); Wood (WSP)
(consulting engineer/geotechnical studies/environmental assessment); Dillon
Consulting (architectural services); Golder (WSP) (geotechnical studies); EY
(mgmt. consultant); Deloitte (mgmt. consultant); Accenture (project manager);
Entuitive; Parsons (consulting engineer); Turner & Townsend (project controls);
AECOM (consulting engineer); Arup (engineer); SEMP Ltd. (consulting engineer);
TULLOCH; GHD (engineer-design); Accuracy (management consultant); Egis; E.S.
Fox; HKA (risk advisor); INTECH (risk advisor); KPMG; LRI Engineering; Marsh
Canada (risk advisor)
Legal: Borden Ladner Gervais (for the owner); McMillan LLP (ONxpress);
Stikeman Elliott
Funding: P3
Substantial Completion: 2032
14 RENEW CANADA – TOP100 2026
METROLINX
As On-Corridor Works is a complex regional project with multiple external
interfaces, stakeholders, utility and operational elements, it is being delivered
as a Progressive DBOM (design-build-operate-maintain) model. In a Progressive
model, the project features a collaborative approach between the project owner
and the contracting partner. In the Spring of 2022, Metrolinx and Infrastructure
Ontario (IO) executed an agreement with ONxpress Transportation Partners to enter
the Development Phase of the On-Corridor Works project—the largest project in
Metrolinx’s GO Rail Expansion program. Unprecedented in its scale and complexity,
this multi-billion-dollar capital program will transform the regional rail network with
electrification, more frequent service, shorter journey times and a more modernized
system for the Greater Toronto and Hamilton Region.
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