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| Company type | Crown corporation |
|---|---|
| Industry | Rail transport |
| Founded |
|
| Headquarters | Montreal, Quebec , Canada |
Area served | Quebec City to Toronto |
Key people | |
| Parent | Via Rail |
| Website | altotrain.ca/en |
Alto (stylized in all caps), also known as the Toronto–Quebec City High-Speed Rail Network,[1] is a planned high-speed rail network in Canada that will connect Quebec City to Toronto. It was announced by Prime Minister Justin Trudeau on February 19, 2025. A design phase for the project was announced with an estimated cost of $3.9 billion and is expected to last 4 to 5 years, with the total cost estimated at $80 to 120 billion.[2]
The railway will feature trains that will reach top speeds of 300 km/h (186 mph), about double that of Via Rail’s current trains (Siemens Chargers and Venture cars), which have a maximum operating speed of 160 km/h (99 mph). The rail network is planned to consist of approximately 1,000 kilometres (620 mi) of new passenger-dedicated electrified track,[3] and is expected by the Alto team to be fully complete in 2043.[4]
In November 2022, the Canadian government announced the planning of a "high-frequency rail (HFR)" line on the Quebec City–Windsor Corridor. This project was called Via HFR.[5] Via HFR was founded as a Crown corporation on November 29, 2022,[6] under the official company name Via HFR – Via TGF,[7] to "oversee what was initially pitched as a 'high frequency' rail project".[8]
Alto was officially announced by Prime Minister Justin Trudeau in Montreal on February 19, 2025. It was announced as a revision of the Via HFR project, which was to now be a high-speed rail line from Quebec City to Toronto.[5] Via HFR was renamed Alto, and the federal government chose the design, engineering, construction, financing, operation, and maintenance of the rail network—also named Alto—to be the responsibility of the Cadence consortium (which includes the French state-owned rail operator SNCF Voyageurs and the private airline Air Canada).[8][9] In the announcement, Trudeau described the project as the "largest infrastructure project in Canadian history" and added that it would be "a game-changer for Canadians". The line is to span Toronto and Quebec City, with five stops in between: Peterborough, Ottawa, Montreal, Laval, and Trois-Rivières.[10]

The Alto high-speed rail network was announced to have stops in seven cities, with no other stops currently being developed.[11]
| Province | City | Metro population (2021) | Rank |
|---|---|---|---|
| Ontario | Toronto | 6,202,225 | 1 |
| Peterborough | 128,624 | 32 | |
| Ottawa | 1,488,307 | 4 | |
| Quebec | Montreal | 4,291,732 | 2 |
| Laval | |||
| Trois-Rivières | 161,489 | 28 | |
| Quebec City | 839,311 | 7 |
In July 2023, the government selected three consortia to proceed to the request-for-proposals (RFP) stage:[12][13][14][15]
On February 19, 2025 the winning consortium was announced to be Cadence after a multi-year procurement process.[16][17] The consortium members expressed their pride and excitement at being selected while promoting their respective areas of expertise.[18] Cadence will co-design, build, finance, operate, and maintain the Alto project.[19]
Official estimated/planned travel times by Alto and comparison to other modes, including the current Via Rail Quebec City–Windsor Corridor service:[20]
| Route | Alto | Via Rail | Flying[nb 1] | Driving |
|---|---|---|---|---|
| Toronto–Ottawa | 2:09 | 4:26 | 2:56 (0:56) | ~4:30 |
| Toronto–Montreal | 3:07 | 5:30 | 3:08 (1:08) | ~5:30 |
| Toronto–Peterborough | 0:40 | — | — | ~1:30 |
| Ottawa–Montreal | 0:58 | 1:59 | 2:42 (0:42) | ~2:00 |
| Montreal–Quebec City | 1:29 | 3:17 | 2:47 (0:47) | ~3:00 |
| Montreal–Trois-Rivières | 0:50 | — | — | ~1:30 |
With the route from Toronto to Montreal via Ottawa being approximately 610 km (380 mi) long, Alto high-speed trains will make the 3-hour trip at an average speed of approximately 196 km/h (122 mph) including stops at stations. Amtrak's Acela service operates at an average speed of 132 km/h (82 mph) between New York City and Washington, D.C. (its fastest segment),[24][25] while SNCF Voyageurs operates a TGV service at an average speed of 279 km/h (173 mph) between the Reims area and the Metz-Nancy region.[26][27]
By travelling at speeds of up to 300 km/h (186 mph) on dedicated passenger tracks, the planned Alto high-speed rail project would reduce travel times between Toronto and Montreal to approximately three hours. This lies in the ideal time range to make rail journeys attractive and to allow for frequent trips.[28] Low-cost tickets and frequent service could attract enough passengers for intermediary stations to be built to serve commuters. This could expand access to affordable housing in small towns, while trips between the major cities could remain fast by running trains that skip stops.[28]
Constructing high-speed rail between Toronto and Quebec City is expected to deliver 50,000 jobs over ten years and $15-27 billion in economic benefits over 60 years.[20][29] The rail network's use of electrified track will reduce emissions from car and air trips in the Toronto-Quebec City corridor, helping Canada to meet its climate goals.[1] The Government of Canada will require the Cadence consortium to deliver minimum project outcomes, including "producing a significant modal shift to passenger rail; providing barrier-free access to services according to the latest accessibility standards; and improved on-time performance across the Corridor."[1]
The project's public-private partnership (P3) structure has been criticized for increasing the risk of project difficulties and reducing the potential benefits of the proposed high-speed line, compared to a line fully owned and operated by a public entity.[4][30][31] A private operator will want to increase ticket prices to maximize profitability, which would limit the number of travellers switching from driving and air travel to rail travel. With most high-speed rail lines losing money,[32] maintaining low ticket prices could require taxpayers to subsidize the profits of the private operator.[30]
At an estimated cost of CA$80–120 billion,[2] the Alto high-speed rail project is significantly more expensive than similarly long high-speed lines elsewhere in the world.[31][33] The per-kilometre cost of Alto will be more than double the average cost for high-speed rail construction in Europe, which has itself been found to be excessive by the European Court of Auditors.[4] The Alto project's cost is more than five times the conservative estimate in a previous study for high-speed rail between Toronto and Montreal.[34][35] Given Alto's high estimated costs and planned 18-year timeline for completion,[4] investment in urban public transit and the existing Via Rail network has been proposed as a more cost-effective target for public funding to reduce transportation emissions and improve mobility.[31][36][37]
Large infrastructure projects in Canada often experience uncertainty and delays,[38] partly due to an overreliance on P3 projects and a lack of public sector project management expertise.[39] Two of the partners in the awarded consortium, AtkinsRéalis (formerly known as SNC Lavalin) and CDPQ Infra, are responsible for rail projects that have encountered delays, cost-overruns, and technical problems. AtkinsRéalis is responsible for the delayed Ottawa LRT's Confederation Line expansion, while CDPQ Infra was responsible for the now-cancelled REM de l'Est light rail extension as well as the wider REM network.[30] Due to CDPQ Infra's privatization of public infrastructure for the REM light rail network, it is "highly unlikely" that the Alto high-speed train will be able to access Montreal's downtown public transit hub of Central Station, forcing commuters to travel longer or make more transfers to get to their destination.[31]
Unlike France or Japan, where a public body performs expert-led oversight and its own project management, the Cadence consortium will be collectively responsible for delivering the Alto high-speed rail project. This may cause inefficiencies in project delivery and drive up the overall costs.[40] In addition, legal issues and an overemphasis on public consultation may cause Alto to run into similar schedule and cost problems as the California High-Speed Rail project, which has been delayed from a 2020 completion date, has had its route shrunk significantly from its original plans, and has had its estimated cost increase from US$30 billion to US$128 billion.[2][40][41] A lack of national standards, expertise, workforce development, and political will could also result in the experience of California High-Speed Rail being repeated.[42][36]
As of 2025[update], Via Rail uses revenue from the corridor to subsidize rail services in the rest of Canada, and the loss of this revenue to a private, for-profit operator under the Alto P3 structure could "profoundly compromise" Via Rail's ability to maintain services elsewhere in Canada.[30][43] The private consortium would be incentivized to reduce labour costs by terminating union agreements when they come up for renewal, and any changes in Alto's schedules, stations, or routes would have to be negotiated with the private consortium, potentially resulting in costly litigation.[30]