Can Confirm, and yes they are related to this
http://feedback.dayzgame.com/view.php?id=161

Agreed needs to be slowed down a bit. and maybe if devs share the actual math behind it i could understand more.

Confirmed.
Issue still from Arma im afraid.

Most loads dont exceed 35 in cities

(At least i know you read since you decided to edit it, that was the goal)

Confirmed doesnt happen often but defintley happens