Infrastructure Ontario and Metrolinx have selected Trillium Guideway Partners (TGP) to deliver the Ontario Line guideway and stations contract. The team has signed a development and master construction agreement (DMCA) with Metrolinx, under a progressive design-build contract.
The Trillium Guideway Partners team includes Acciona Infrastructure Canada and Amico Major Projects and WSP Canada Inc, which is responsible for the design. The team was selected following an evaluation of proposals submitted in September 2023. The selection of TGP is the result of an open and competitive procurement process overseen by a third-party fairness monitor.
The agreement incorporates a multi-stage design process called a development phase, according to the progressive design-build model. This phase allows for a collaborative approach between Metrolinx as the project owner and TGP as the contracting partner, who work together to finalise the scope, risk allocation and pricing of various elements of this contract.
The development phase is anticipated to take up to 20 months, though early works construction can commence during this phase. Once the development phase has concluded, Metrolinx will have the option to sign a final target-price agreement with TGP, which would include final agreements on detailed designs and a negotiated price.
The contract for Ontario Line guideway covers the construction of 3 km of elevated line with five stations (Riverside -Leslieville, Gerrard, Thorncliffe Park, Flemingdon Park, Science Centre), one emergency exit building, interface with the operations and maintenance storage facility as well as with the Eglinton Crosstown LRT Line 5 and sections of existing Metrolinx-owned rail corridor where Ontario Line trains will operate.
The Ontario Line project is being delivered through various public-private partnership (P3), progressive design-build and traditional procurement contracts, which are all being staged accordingly for their successful delivery. The 15.6 km rapid transit line with 15 stations that will connect the Ontario Science Centre to Exhibition/Ontario Place. Over half of the route is planned to run underground through new tunnels, with the remainder running along elevated and at-grade rail corridor sections of track.
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