Velocity and acceleration are important, but I care more about deceleration; or the distance required to stop.
It’s why I run to work now rather than cycle. I feel safer on the roads at a slower pace; a pace that gives me more control and flexibility.
Earlier today I was running to work and a cyclist was about to speed through a yield sign at a road I was about to cross.
They had to slam on their breaks. I was able to stop early and easily avoid a collision, but it made me reflect on how it’s the distance required to stop—not accelerate—that really matters.