Transportation connects locations, allowing movement of people and shipments of freight. Since transportation and commuter costs are distinct types of cost, they require a methodology specifically designed for this purpose.

A policy instituted nationally will still affect states differently due to their gross state product, input, output, and linkages to in-state and out-of-state programs and plans.

Regions seeking upgrades to their local economies must consider what a proposed change will do to their corresponding labor force. The inability to meet labor demands can capsize even the most ambitious public program.