Why is it a bad idea to build a parking deck in Piedmont Park?
Why is it a bad idea to widen I-75 to 23 lanes?
Why is it counterproductive to equip transit stations primarily with enormous parking decks?
Why is the eternal chase for traffic mitigation short-sighted?
Why is the typical intown development built by Sembler poorly conceived?
Jane Jacobs had an answer — a warning, if you will — for us more than fifty years ago:
Erosion of cities by automobiles entails so familiar a series of events that they hardly need describing. The erosion proceeds as a kind of nibbling, small nibbles at first, but eventually hefty bites. Because of vehicular congestion, a street is widened here, another is straightened there, a wide avenue is converted to one-way flow, staggered-signal systems are installed for faster movement, a bridge is double-decked as its capacity is reached, an expressway is cut through yonder, and finally whole webs of expressways. More and more land goes into parking, to accomodate the ever increasing numbers of vehicles while they are idle.
No one step in this process is, in itself, crucial. But cumulatively the effect is enormous.
…
One seemingly logical step is taken after another, each step plausible and apparently defensible in itself; and the peculiar result is a form of city which is not easier to use and to get around in, but on the contrary more scattered, more cumbersome, more time wasting, expensive and aggravating for cross-use.
– Jane Jacobs, 1961
Cumulatively, by accomodating cars more than people, we shoot ourselves (and our wallets, and our tax bases) in the foot by making our local economies less efficient, and our mobility less secure.
It is unfortunate that what lies in front of our faces, what should be obvious to all of us by now, is so tightly veiled simply because the so-called process of traffic mitigation creeps across many generations.