Unofficial TTC Geospatial Data
Above: a quick, all-javascript webmap of the dataset (minus the SRT, for now). Check out the ArcGIS Online webmap for the actual metadata and more indepth data viewing.

This is a quick page to hold the links to the free data in shapefile form.

The last export of this data was January 19, 2012 (date stamp appended to filename: _yyyymmdd)
Links and webpages are sent using SSL. Projected in NAD83 UTM 17N. Creative Commons License
TTC Rapid Transit Routes by Kevin Farrugia is licensed under a Creative Commons Attribution 3.0 Unported License.

Please note: these are unofficial datasets and I do not take any responsibility for errors, inconsistencies, and/or problems that arise from the use of these files. They are provided as-is.

Credits: City of Toronto Open Data, Open Street Map, and the TTC.

Aaaaand just incase I have to put this here also:
"Contains public sector Datasets made available under the City of Toronto's Open Data Licence v2.0." (Licence)