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ONTARIO LINE METRO - TORONTO

The Ontario Line is a new underground railway line under construction in Toronto. A fully automated line, it is set to transform the city’s transport system. The route will cross the centre of the city, a quick, easy and modern link between the Ontario Science Centre, the Exhibition Place area and the future Don Mills Road stop, where it connects with the Eglinton Crosstown tram line (line 5).

The Ontario Line is one of the most ambitious and innovative infrastructure projects not only for the city, but for the whole of Canada. About 16 kilometres long, with 15 stations, it will make it really easy to get around the city by connecting to subway lines 1 and 2, three GO Transit railway lines and the new Eglinton Crosstown LRT line. This will reduce travel times and improve the efficiency of the regional transport system.

More than half of the route will run in tunnels, with eight underground stations, while the rest will be at ground level or elevated. Six of these will become important interchange hubs, connecting bus, tram, regional rail and metro lines, fully integrated with the entire mobility system of the Toronto metropolitan area.

Infrastructure Ontario and Metrolinx are overseeing the project – from design to construction – as well as being the sponsors of the project.

Italferr is playing a big part in this huge and complicated programme, engaged in many different specialist areas and using our engineering know-how to build a railway infrastructure that's both strategic and innovative, set to make a huge difference to the future of mobility in Toronto.

RSSOM Project

Since 2023, Italferr has been working on the RSSOM (Rolling Stock, Systems, Operation and Maintenance) project for the new automated metro line on the Ontario Line. Responsible for designing the layout and track system for the entire 15.6 km line and depot, it has received the challenging and strategic task of liaising with all five civil contractors involved in the project.

The company is working with the main designer, Arcadis, and the contractor, Connect6ix (a consortium that includes, among others, WeBuild, Hitachi and Transdev). Together, they're developing and modelling the ballastless track system and all related components along the line, including switches, heaters, buffers and lubricators, in a BIM environment.

Since 2023, the Italferr team has been busy designing the track, dealing with the many variations, and finalising the designs for the North, South and depot sections, liaising with the many stakeholders involved also thanks to the onsite project team and the input of the expert engineers based in Italy.

The construction design is scheduled to be finished in spring 2026, which is when the track equipment work in the depot is due to start. Italferr is also finalising the contract for supervising the works, with the completion date scheduled for 2030.

Moreover, from February 2024, Italferr will be supporting the Connect6ix Consortium in RAMS (Reliability, Availability, Maintainability and Safety) activities related to civil works, through their onsite team and the engineers in Italy. These activities are essential for analysing, verifying and validating the entire infrastructure in terms of its reliability, availability, maintainability and safety. The project, in fact, should be viewed as a complex and integrated system throughout its entire life cycle, from design, construction and testing to operation and maintenance.

PTUS Project

Since January 2024, the Italferr team has been working on designing the TBM tunnelling and fire protection systems. We're working with the Main Designer, AECOM and Arcadis, as part of the PNC Consortium (Webuild and FCC).

The project is part of an innovative public-private partnership scheme called Progressive Design and Build, which promotes gradual design evolution and constant technical and economic optimisation.

In 2024, Italferr was engaged in engineering validation and in-depth value engineering activities aimed at improving the design solutions, based on the feasibility study used for the tender, subsequently developing 30% of the preliminary design.

In 2025, 60% of the final design was delivered, followed by 90% of the construction design, which allowed the contractor to define the final budget for the work. The design work is set to be completed (100%) in the spring of 2026, and construction of the tunnel is slated to begin in 2027, when Italferr will continue supporting the Consortium during construction.

We developed all the design levels in a BIM environment, from the modelling of the tunnel segments to the definition of the fire-fighting water system, ensuring effective coordination with the technical interfaces and stakeholders involved.