2 ms·
The 3 feet is a minimum. The idea is just to leave a reasonable amount of room. If someone passed a post at speed with only 3 feet of clearance they would be ch
by upofadown 11y ago
The 3 feet is a minimum. The idea is just to leave a reasonable amount of room. If someone passed a post at speed with only 3 feet of clearance they would be checking to see if their mirror was still there.