"Induced demand" as a reason not to do something is illogical. The Green Revolution increasing crop yields induced demand for humans. Metro systems existing and building new lines induce demand, in some cases resulting in overcrowding. Building housing and offices induce demand in a location. There is nothing wrong with improving a thing so that more people are able to do that thing. I can understand concern about em…
Main issue is that traffic ‘misery’ (my term) is the constant. There is a maximum amount of gridlockedness before people naturally stop bothering to think they should begin using a given road (say, by moving farther out into the suburbs, or moving into some far suburb from outside the metro to take a job in the city). You can add 3 more lanes, and right away, more people believe they can make that lifestyle change, a…
In practice, they are public funds so it ends up being a public decision. Do people support spending $X so that Y people can obtain Z preference.
I'm off to my 1 hr commute right now, which I chose because it is preferable to my housing options near work. You couln't pay me enough to live in a condo downtown. I wish transportation infrastructure was even better so that I could live further and this is where I would like my taxes directed.