[magooey]

Every road, street, bicycle path, foot path, etc. should be blocked by trucks. Nothing goes in and nothing comes out

Consider the issue of resupply by rail, air or boat.

[Victor]

"...Consider the issue of resupply by rail, air or boat...."

OK, let's consider that.

Even if goods are brought in by rail, air, or boat....they still be must be brought to their final destinations, either retail shops or warehouses....by truck.