I was trying to write up tag info for these two tags, and its hard to separate them. I've had a go but its not very good.
Are they close enough that a crash IS an accident and vise versa ?
I see the distinction as being something like:
Accident: What happens before and up-to a collision. The road is icy/wet, you're blinded by oncoming lights or sunstrike, a motorist didn't see you coming and failed to give way, another cyclist was salmoning in your bike lane in the dark while wearing black at night with no lights.
Crash: you've hit something, be it the ground/road, a car, another cyclist, a rock/tree, or something squashy like a pedestrian or animal. At this point its all about reducing the damage to stuff and the injury to minimise healing time. You'd rather graze than cut, and bruise than break a bone. You want to not get run over by the rest of the bunch who were on your wheel.
Further - an accident could be avoided if something was different in the lead-up. A crash is the result of an accident and its about minimising not avoiding.
There was a meta discussion a year ago about Deleting the Accident tag but nothing changed.
Please suggest any improvements to the two tag descriptions.