Final answer:
The completion of the National Road resulted in the halving of the cost and travel time of transporting goods from Baltimore to Ohio.
Step-by-step explanation:
The completion of the National Road had several significant results:
- The cost and travel time of transporting goods from Baltimore to Ohio was halved. The National Road, also known as the Cumberland Road, provided a direct route from Maryland to Illinois, allowing for faster and more efficient transportation of goods from Baltimore to Ohio.
- The completion of the National Road did not have a direct impact on the cost and travel time of transporting goods from New York to New Jersey.
- There is no evidence to suggest that the completion of the National Road led to the U.S. federal government doubling its spending in infrastructure.
- The National Road was successfully completed and played a crucial role in improving transportation in the United States.