Winnipeg Transit is leading by example with good Open Data practices. They have published their data in GTFS format under the ODC PDDL. The zip file includes a LICENSE file with the full text of the PDDL.
These licensing terms provide absolute clarity to developers who wish to use Winnipeg Transit data. Yes, you may.
Winnipeg Transit also leads by example with their trip planner and transit API. Their Terms of Use clearly distinguish between the restrictions and limitations of their web service, and the Open Data license for the data. This approach allows the city to prevent over-use or abuse of the web service, and offer the web service on an equitable basis to all data consumers. At the same time, their policy makes the raw data available to data consumers without restrictions, so data consumers may provide their own services with that data, reducing the requirement for resources from the city.
This clear separation of web site terms from data license allows Winnipeg Transit Open Data to survive in the wild
when separated from the web service. Doug Hiebert and his colleagues at Winnipeg Transit have provided an admirable example of Canadian municipal Open Data best practices.
Well done, Winnipeg!