My running days are over, however seeing as I’m over 6ft, my stride on speed walking is considerable; I’ve been allowed into Peter Pans Flight at DL traveling at near the same speed as people running (while they were turned away and told to go to the back of the line.)Speedwalk?
Before they changed to an in park rope drop (years ago) when the A&E M&G was first opened I watched a man vault the low fence in the center of town square with a 2 - 3 yo on his shoulders then sprint off down mainstreet.
Shortly after they started walking the crowd down the street with a rope barrier.
eta; Oh, there were suits milling around by the barbershop, they caught the whole thing live
Walking=one foot in contact with the pavement at all times
Running=At times in your stride neither foot is on the ground
Running is dangerous, as it’s harder to stop, while walking it’s much easier to slow your stride quickly.