While in Boise last week I visited the Boise Depot. This got me thinking about rail transit. I'm not familiar with the history of Boise's efforts to build light rail, but this seems like a very straightforward route with very high potential to me:
Airport-downtown connection
Greenbelt connection
Zoo proximity
Boise State proximity
Boise Depot connection (future interstate rail connection)
Other infill stations, density along route