Apples and oranges, perhaps a little, but in my neighborhood they have placed speed bumps before the bus stops, apparently the signs themselves aren't enough for some people. My sidewalk fence idea is perhaps knee jerk, but it would give some people a second to pause. I find things repeat themselves and I hope nobody, especially a young person has a life changing event. Hell, my daughter continues to push the limits as I did at her age and sometimes still do. Cheers!