Originally Posted by cdsuofa
... I would like to see the system be as free flowing as possible, I hope it doesn't end up just like a bus where it takes you 15 mins to get a mile due due stop lights, traffic, whatever. How we could achieve this without doing the obvious extremely expensive options (raised above street level or dropped below at points) is a question I don't know how to answer.
Raised above street level or underground rail would be ideal for a free flowing light rail transit - not gonna happen in Tucson, unfortunately.
Since Tucson has always been against the all important east-west crosstown freeway (Grant-Kolb, my favorite freeway route) and traffic flow has been getting worse each year, I think a dedicated lane for light rail is Tucson's best answer for the likely traffic armageddon it will face in the future.
Tucson might as well extend the current street car route to a light rail otherwise it will be another embarrassing major sinkhole (and a joke). Besides, wherever the light rail goes, investment follows ( 5+ floor buildings ).