VIA Rail has a contingency plan in place to ensure that passengers who have purchased tickets will receive transportation to their destinations.  Here it is (courtesy www.viarail.ca).

SARNIA – TORONTO (TRAIN 84)
-Regular train service between Sarnia and London.
-Train will take alternate route between London and Toronto. Passengers boarding or detraining in St. Marys, Stratford, Kitchener, Guelph, Georgetown, Bampton and Malton will receive alternate transportation.

TORONTO – SARNIA (TRAIN 87)
-Train will take alternate route between Toronto and London.  Passengers boarding or detraining in Malton, Brampton, Georgetown, Guelph, Kitchener, Stratford and St. Marys will receive alternate transportation.
-Regular train service between London and Sarnia.
 
TORONTO – SARNIA (TRAINS 85, 86, 88 AND 89)
-Passengers will receive alternate transportation.
 
ALDERSHOT – TORONTO (TRAIN 740)
-Passengers will receive alternate transportation.
 
TORONTO – OTTAWA  (TRAINS 50, 54, 44, 46, 656 AND 48)
-Regular train service between Toronto – Brockville.
-Passengers boarding or detraining in Smiths Falls, Fallowfield and Ottawa will receive alternate transportation.
 
OTTAWA – TORONTO (TRAINS 41, 51, 55, 657, 59 AND 659)
-Passengers boarding or detraining in Ottawa, Fallowfield and Smiths Falls will receive alternate transportation.
-Regular train service between Brockville and Toronto.

WHITE RIVER – SUDBURY (TRAINS 185 AND 186)
-Passengers will receive alternate transportation.