What is it?
Preserving clear lines of sight around intersections so that drivers, pedestrians, and people on bikes can see each other and keep themselves and each other safe.
Why here?
People regularly park their cars in the crosswalks - hiding oncoming cars and crossing pedestrians and causing pedestrians to have to enter travel lanes to cross the street.
Why now?
Recent deaths would all likely have been prevented by daylighting.
Precedent
It is New York State Law to require daylighting 20 feet from all intersections. NYC has opted out of this law, though there is a growing list of community boards who are demanding universal daylighting to be implemented.