Anchor
Pavement ... uneven, people, dogs, kerbs ... feel like you're always dodging something
Road or better still bike lane ... smooth ... stick your hand out like a traffic cop as you go through an intersection .
Run towards the traffic so you can see whats coming and dodge if you need to.
You stop less, more flowing ... so you may run the same speed but you keep moving. Times are better .
Same principal as a fixed wheel bike. Never stop... just slow down and then speed up.
and, yep , it's a bit more dangerous, bit more of a thrill 😁