You’re right, we should!

We could even build these special purpose, heavy duty roads out of something stronger than asphalt, like metal. Then once we have these sturdy new metal roads for trucks, we can raise the weight limit to allow them to carry heavier loads. And since there’s no little cars getting in the way, we could even group together multiple trucks going in the same direction for better logistical efficiency.

You can see where I’m going with this. ;-)