03-06-2016, 06:52 PM
ION will be traditional catenary, and the main reason is there's no standard for under ground power supply. If you put in Bombardier underground power you're forever locked into buying Bombardier vehicles, because no one else makes vehicles compatible with it. Pretty risky proposition for infrastructure that's supposed to last 100 years. There isn't even a guarantee that Bombardier will make compatible vehicles in 20 years, given underground power hasn't really taken off.