About fast traveling: During certain quests where people are moving around the world and there's a marker on them (main quest where you kill the general's son and the Dark Brotherhood quest where you kill the guy in the caravan), it seems like they move at fairly the same rate as you. For example, I was in Windhelm and the caravan (for the Dark Brotherhood quest mentioned) was near a location I could fast travel to. I fast traveled there and they were at Windhelm, so it seems that they should be moving at roughly the same speed, right?
Then why didn't these bums meet me there? I guess someone could do a test on how much time passes when you fast travel compared to normal travel.

I just assumed Fast Travel v manual running were the same if you travel along the roads, but hopefully someone who has tested it will come along because I've wondered how they calculate that time as well.