Assign trucks to Construction, Dumping, or Delivery only tasks

in vehicle management, it would be useful to be able to assign a number of trucks to construction only tasks so that their main purpose is to collect and deliver construction materials for projects "Under Construction". that can include surfaces, or deconstructing.
Likewise there could also be a category for "Terraforming" That their main job would be to pick up materials from available storage and deliver it to available dumping designations.
An additional category could be delivery only. would be a pool of trucks designated to prioritize delivery tasks.
If no jobs are actively available they can queue in the unassigned jobs.

With the new "logistics zones," you can designate one zone for construction in other zones.
Zoning also works for dumping, though I haven't tried it much yet. This could solve the issue, though.