[throwaway2245]

The poor neighbourhood where I lived had a statistically extremely low rate of car ownership. If you owned a car at all, it was a cheap second-hand.

There were expensive cars rolling around though: due to rich people were passing through from expansive suburbs to the financial district, creating pollution and externalities that the poor neighbourhood had insufficient power to deal with.

[chillwaves]

If it makes you feel any better, I live in a wealthy suburb by some major traffic congestion and in the age of Google Maps, has become a major "short cut" so much that backed up cars will block my driveway each morning during rush hour.

So even the well off have to deal with these "externalities".

Our road is also in poor shape and had no shoulder to begin with. It is not meant for this level of traffic.