It isnt about travel distances. Most "long haul" trucks dont go anywhere near maximum range on a given run. It is about driver time. A truck that cannot keep a driver driving for an entire shift (8 or 10 hours) is a logistics problem. At four or five hours, drivers will need to get to a depo and swap out for another truck mid-shift in order to keep driving, which is a wildly inefficient use of expensive human resources.
What is needed are 8 or 10-hour endurance trucks, even if at a lesser load, as that will cover a driver's day and allow recharge during rest periods.
What is needed are 8 or 10-hour endurance trucks, even if at a lesser load, as that will cover a driver's day and allow recharge during rest periods.