Final answer:
The lack of modal integration in the U.S. was exacerbated by public policy that did not allow intermodal transportation, competition between carriers, infrastructure development, and regulatory oversight.
Step-by-step explanation:
The lack of modal integration in the U.S. was exacerbated by public policy that did not allow intermodal transportation, competition between carriers, infrastructure development, and regulatory oversight.
Intermodal transportation refers to the use of multiple modes of transportation, such as trucks, trains, barges, and ships, to transport goods. It allows for more efficient and cost-effective transportation of goods.
Competition between carriers promotes innovation, efficiency, and lower costs in the transportation industry. Infrastructure development, such as the construction and maintenance of roads, railways, and ports, is essential for a well-functioning transportation system. Regulatory oversight ensures compliance with safety and operational standards, as well as fair competition.