In 2005, the TTC introduced "time-based" transfers allowing additional free rides within a two-hour time limit from the start of the vehicle's journey, even if the passenger makes a stopover or reverses direction.
Tess Kalinowski, writing in the Toronto Star, reported in January 2014 that TTC staff were studying shifting the TTC to a time-based transfer system, as part of introducing Presto cards, and that they predicted it would result in a $20 million annual loss of revenue [REF].