Unfortunately there is a tendency to vere off subject but speed is relative. I live next to a children's play area which is very close to a junction. Our road is a cul de sac and yet motorists seem hell bent on seeing how fast they can get around the corner and most of the offenders are MOTHERS.
Speed checks on the main road that runs though the village reveal that the popular time for speeders is pre and after school again MOTHERS.
May I illustrate the difference between a modern car and an older one in relation to speed.
BMC 1100 travelling at less than the 30 mph limit collided with a drunk on a cycle travelling in the opposite direction just staying upright so combined speed was no more than 35mph. Drunk a cabbage and the 1100 written off. I dealt with this one circa 1977
I was standing on the corner of a main trunk ( marvelous what the blue suit does to speeding motorists) talking to one of my locals, when a small car approached from my right on the main road, one of my senior residents walked up to the junction and into the path of the small car. It is true it does happen in slow motion. He prescribed an arc over the top of the car, which stopped pretty quickly. Before I could get to the pedestrian, he was up and walking away. (They don't teach you that one at training school) There was no question of the young lady driver having done anything wrong. She had recently passed her test and was hysterical. The pedestrian was 92 and suffered no injuries at all. I spent many weeks trying to help the driver as she was convinced it was her fault. The car modern, the date circa 1990. Is this why people take no notice of the lower speed limits because the modern car is so forgiving.