Alto and Cadence begin comprehensive environmental field studies to support impact assessments for proposed Ottawa-Montreal high-speed rail corridor

Alto and its development partner, Cadence, have launched the next phase of environmental field studies for a proposed high-speed rail network between Ottawa and Montreal.

The 2026 programme builds on earlier studies, with data collection taking place along the first segment of the study corridor. The work is designed to support environmental impact assessments and inform planning, engineering and design decisions for the future railway.

Environmental data to guide planning

Field studies will include wildlife and vegetation surveys, soil sampling, sound level monitoring and analysis of waterways and wetlands. These activities are being carried out by specialists using recognised methodologies while complying with regulatory requirements.

The selected sites cover rural, urban and suburban environments, ensuring a comprehensive understanding of the corridor. However, the locations do not represent the final route, which has yet to be confirmed.

The data collected will establish baseline environmental conditions, helping identify potential impacts and define measures to avoid or reduce adverse effects while maximising benefits for communities.

Engagement with Indigenous communities forms a key part of the programme. Their knowledge contributes valuable insights into local environments and traditional land use, supporting more informed and inclusive decision-making.

The project will also expand studies onto selected private properties. Landowners will be contacted to provide consent for access, with participation remaining voluntary and compensation offered. Receiving a request does not indicate that land will be acquired or that the railway will pass through the property.

Anne Marie Gaudet of Alto said environmental considerations remain central to the project, ensuring decisions are based on robust data and aimed at protecting ecosystems and communities.