You might find that someone has already drawn the bus routes you are interested in:
http://wiki.openstreetmap.org/wiki/Buses
(Then you just have the task of pulling the data out of OSM and translating it into a format that you can work with)
You might find that someone has already drawn the bus routes you are interested in:
http://wiki.openstreetmap.org/wiki/Buses
(Then you just have the task of pulling the data out of OSM and translating it into a format that you can work with)