I think it's a question of public support, political will, and stamina. People think of freeways as vital, so it's ok if I-69 through southern Indiana takes ov

I think it's a question of public support, political will, and stamina. People think of freeways as vital, so it's ok if I-69 through southern Indiana takes over 30 years from initial studies to completion. If a train route took 30 years to build, it would be lambasted as a boondoggle and abandoned.