485
It doesn't take much...
(lemmy.world)
… especially if the neighborhood is filled with little shits with too many electrified toys.
EDIT: Okay, I'm convinced. Regular bikes would actually be a sensible cause here. Let me be a curmudgeon though.
Regular roundabouts can also do that.
Obviously not a criticism of your statement, but this thing shows up every five minutes and I've still yet to see a single justification for it's existence.