[jmgrosen]

Even at 23mph, a pedestrian's chance of death in a collision, in the US over the years 1994-1998, was only 10%: https://aaafoundation.org/impact-speed-pedestrians-risk-seve...

I don't mean to imply that that is a low risk, only that speed is quite a crucial factor.

[sonicanatidae]

Oh, I agree 100%. Speed kills.