trolley bus. they run on electricity supplied by the overhead wires. also includes: bike rack at the front, hydraulic systems to lower the entry points to help passengers get on and off, a ramp to help the wheelchair-bound roll in and out, and after 9pm you can ask the driver to stop anywhere along his route to drop you off... and the best part: UBC students get free unlimited travel on any mass public transport (buses both trolley and diesel and also the skytrain)!