Thanks to the wonderful wonk blog:
A new study in the Journal of Transport Geography suggests that four light-rail systems built around England during the 1990s and 2000s had virtually no effect on overall car traffic. Instead, the rail systems mainly seemed to attract riders who would otherwise have taken the bus.
Without shifting away from our bush capital moniker, light rail appears to be another green boondoggle. The question that nobody is asking but should is, do we want to give up the current character of Canberra as the bush capital?