The Réseau express métropolitain (REM) redefines mass transit in the Greater Montreal area. This 67 km all-electric system connects key hubs, including Montréal-Trudeau International Airport, the South Shore, the North Shore and downtown. With its 26 stations and four antennas, it represents the largest public transport infrastructure since the Montreal metro was inaugurated in 1966. Designed to be a world-class automated network, the REM combines above-ground, underground and aerial segments to meet the population’s growing need for sustainable mobility.

Commissioned to carry out the geotechnical investigation campaign, our team drilled more than 4,700 linear metres of boreholes and carried out a variety of tests to assess soil and rock conditions along the route. This work included geophysical surveys and laboratory tests for foundation design and groundwater monitoring. Logistical challenges, such as access to restricted areas of the airport or the complex underground sections of Mount Royal, were mastered thanks to rigorous technical expertise and close coordination with stakeholders. This mandate provided critical data for the planning and realization of this infrastructure, essential to the sustainable development of the metropolis.