GO was running some test trains July31/Aug1 between Toronto and London on the north line via Guelph, Kitchener and Stratford. GO already reaches Kitchener (100 km)........a London extension would add another 95 km.
https://london.ctvnews.ca/go-transit-tr ... -1.5530701
https://london.ctvnews.ca/go-transit-tr ... -1.5530701