when you live hard by the Cross Bronx, special compromises must be made.
The next sentence doesn't sound much like a compromise:
On Fteley Avenue, where Mrs. Moore lives, the children on her block know not to play past the stop sign where merging traffic lurks.
That sounds like a restriction dictated by traffic, not a mutual agreement between parties.
In any event, any positive value from watching traffic is outweighed by the costs of noise, pollution and safety. It would be worthwhile to consider building above the roadbed and let the nearby residents finding a new diversion.