You have idle trucks unable to increase the truck-loadings-per-hour because they can't complete a single job due to the lack of storage space for their empty containers.
Providing that storage space will allow the trucks to complete their circuit.
Providing that storage space will allow the trucks to complete their circuit.
MMy understanding: many truck drivers are owner-operators, operating on extremely slim margins at the best of times (say 5 pickups per day).
With long waits and maybe one or two pickups per day, they go out of business.