A look at the TTC's cutting edge route management system which was introduced and used in the 1980s and 1990s. The C.I.S. (Communications and Information System) was a major technological step forward for the Toronto Transit Commission in the late 1980s and throughout the 1990s, modernizing how buses and streetcars were tracked, managed, and communicated with in real time. CIS combined vehicle location tracking, radio communications, and computerized route supervision into a single centralized s