Present Use
Today, only commuter trains from AMT's Deux-Montagnes service use the Mount-Royal Tunnel. Before 1995, Via Rail trains to/from Northern Quebec and the northern route to Quebec City (cancelled in 1990) also used the tunnel, being hauled up by boxcabs pre-1990, and coasting downhill. This practice was eliminated when the catenary and signalling were replaced in 1995. The old catenary was 3000 V DC (upgraded from the original 2400 V DC in the early 1980s) and the new catenary is 25 kV AC. The new signalling is CTC. The ventilation shaft is too small to allow the use of diesel electric locomotives in the tunnel.
Read more about this topic: Mount Royal Tunnel
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