What could we have with rest‐of‐the‐world regular commuter, not‐even‐almost‐high‐speed, rail? Back‐of‐the‐envelope time. For easy calculations, cruise at 150 km/h (2.5 km/minute), accelerate and decelerate for stops in 1 km and 1 minute each — all leisurely for an off‐the‐shelf commuter EMU (e.g. Cali‐KISS). Dwell 1 minute.
On the current route it's 102 km (sigh) to Union Station. From Kitchener let's stop in Breslau, Guelph, Rockwood (hey, why not?), Acton (seriously, why not?), Georgetown, Brampton, Malton/YYZ (at 77 km) and then express to Union. So: Kitchener–YYZ: 46 minutes. Kitchener–Toronto: 59 minutes. Who would take that over driving? (Click to reveal answer)
On the current route it's 102 km (sigh) to Union Station. From Kitchener let's stop in Breslau, Guelph, Rockwood (hey, why not?), Acton (seriously, why not?), Georgetown, Brampton, Malton/YYZ (at 77 km) and then express to Union. So: Kitchener–YYZ: 46 minutes. Kitchener–Toronto: 59 minutes. Who would take that over driving? (Click to reveal answer)