The Infrastructuralist provided the above image that shows all the potential and proposed street car lines by regions. It is amazing that 50 years ago many of these same regions had extensive street car networks. Fast forward 50 years and we are back to where we started about 100 years ago. The difference now is that these lines have to be built with the current environment. The days of neighborhoods and commercial corridors popping up along street car lines are long gone. Instead we now have to make sure these new lines mesh in with the current urban fabric. A much more difficult task for sure.
Here is a link to the local plans here in Minneapolis.