Ideally a lot of the long-haul freight could be handled by rail, but another option for trucks is to have electrified highways. There are some projects in Sweden (one of which uses power rails embedded in slots in the road surface) and Germany (which uses overhead lines).
The slots-in-the-road approach is a bit more expensive, but it can be used by cars and trucks, whereas the overhead lines are just for trucks.
The slots-in-the-road approach is a bit more expensive, but it can be used by cars and trucks, whereas the overhead lines are just for trucks.