Montréal metro interlocking contract
https://www.railwaygazette.com/metros/montreal-metro-interlocking-contract/61343.article
Montreal has now 4 metro lines, none of which has complicated train sorts or branching lines. So, I think that interlocking system is only needed at terminus. But, when we consider that REM lines under construction will be complicated suburban rails, such an interlocking system should be installed on REM lines.
