Or tax dollars could be better spent giving the people who plan traffic labotamies, rather than implementing their plans. Really, let them sit in a cornor and drool. It would be better for traffic movement.
Okay, let's say you have a city that is essentially divied into 2 by a mountain range. Like... oh I don't know... Los Angeles. And let's say that 4 million people live on one side .. let's call it the San Fernado Valley side.. you know just for shits and giggles. And, of these 4 million, most of the workers actually work in the other side of the mountains. Fine.
That is poor planning; but what nature devided, let man unite with 16 lanes of traffic.
So between the Valley and the West side there are 6 routes. Pacific Coast Highway (PCH), the 405 (many many lanes), the 101 (a lot of lanes) and the 3 Canyon roads (Beverly Glen, Coldwater and Laurel).
So we get a ton of rain. A ton! Well PCH and the canyon roads get washed out. That leaves a lot of extra traffic on the 101 and the 405.
So I have an un-lobotimize transit guy. What does he say, "I got a great idea! Now is the time to start tearing up the 101 over the hill." Oh yeah that will help.
Traffic, FYI, eh-sucks.