Origamist
Legendary Member
[QUOTE 3681830, member: 9609"]@McWobble
I have found my figures, from 30mph on the bike I done two tests one 28m and the other 26m. I made one attempt in the van and had wrote down 6m (which is nearly a metere longer than the van! It wasn't the most scientific of tests, the speedometer probably wasn't very accurate (that van over read distance by 7.9% so the speedo probably did too) and I just paced out the stopping distances, so lots of room for errors!, but I do recall being suprised at how quickly the van had stopped and particularily that it had done so pretty much within its own length. I sort of suspect a decent car would perform better.[/QUOTE]
It's the overall stopping distance that is crucial - not just the braking distance. At 30mph thinking distance (just spotting a hazard) can eat up between 7m to 10m on average.
I have found my figures, from 30mph on the bike I done two tests one 28m and the other 26m. I made one attempt in the van and had wrote down 6m (which is nearly a metere longer than the van! It wasn't the most scientific of tests, the speedometer probably wasn't very accurate (that van over read distance by 7.9% so the speedo probably did too) and I just paced out the stopping distances, so lots of room for errors!, but I do recall being suprised at how quickly the van had stopped and particularily that it had done so pretty much within its own length. I sort of suspect a decent car would perform better.[/QUOTE]
It's the overall stopping distance that is crucial - not just the braking distance. At 30mph thinking distance (just spotting a hazard) can eat up between 7m to 10m on average.