>But induced demand is simply a good thing - you are allowing more people to realise their desires.
projects usually have a goal. especially multi-billion-dollar transportation projects. if the goal of the project aligns with the behaviour it is inducing, then induced demand is good. if the goal of the project (according to the people making decisions about funding it) contradicts the behaviour it induces, then induced demand is a bad thing and it's not going to get funded.
for a highway project, the goal isn't usually to allow more people to drive cars. it's to reduce congestion, improve safety, or to improve the flow of commercial vehicles through a corridor. the demand that more lanes induces is contrary to that goal, which is why the induced demand is a reason not to do it.
projects usually have a goal. especially multi-billion-dollar transportation projects. if the goal of the project aligns with the behaviour it is inducing, then induced demand is good. if the goal of the project (according to the people making decisions about funding it) contradicts the behaviour it induces, then induced demand is a bad thing and it's not going to get funded.
for a highway project, the goal isn't usually to allow more people to drive cars. it's to reduce congestion, improve safety, or to improve the flow of commercial vehicles through a corridor. the demand that more lanes induces is contrary to that goal, which is why the induced demand is a reason not to do it.