1. A method comprising: receiving a transportation order indicating an item to be transported; determining a first configuration with the item in a first compartment of a first vehicle having a plurality of separate compartments, each compartment having an associated capacity value; generating, in a computer, an indicator of feasibility for the first configuration based on whether the first configuration meets a first set of transportation constraints; adjusting, in the computer, the capacity value for the first compartment if the first configuration is not feasible; and determining, in the computer, if the first configuration is feasible with the capacity value of the first compartment adjusted.