I’m not sure that tracks: If a new road allows me to build a home where I would not have built a home before, that’s economic activity enabled by the new road.
But it's activity somewhere other than where part of the road was built.
Take DC and NoVA, typical large suburb next to a large city. If DC wants to increase economic activity, does it want to invest in a new bridge that allows more people to live in NoVA (where most of their retail/commercial activity will occur)? Or, would DC be better off spending that money on redeveloping run-down neighborhoods and adding some light rail (or other transit improvements)?
Doesn't DC have a height limit on buildings? Seems like eliminating that would be a way for the city to increase economic activity without spending any money
Yes, that’s a fairly unique rule. IIRC to protect the aesthetics of the downtown monument/lawn zone (which includes the WH and Capitol). Arlington across the river has all the tall office buildings.
But I have no idea how much DC “needs” the vertical space for development. It isn’t nearly as dense as NYC - plenty of infill (re)development to be done, I would guess.