Question

How did the Interstate Highway Act boost the post-war economy

Answer 1

It gave the ease of transportation to goods around the country to sell and boost the economy.

Also allowed more people to travel and spend their money in the consumeristic society. 

Answer 2

The Interstate Highway Act opened thousands of new jobs, and also helped with transportation when it was done, making it easier and cheaper to transport goods and resources from one part of America to the next

hope this helps