This tradition continued even after the wars ended. The lessons learned on the battlefield were adjusted to meet the civilian consumer market. In this time there were many advances, for example, Roy Chapin experimented with pneumatic tires.
The idea was to handle heavier loads while running at greater speeds. Just look what happen from then until today with the heavy haul and the heavy duty truck!
By the 1950’s the USA had well over a million semi-trailer trucks rolling across her highways. It was during this time that other advances were made. The diesel engine was perfected and put to use in commercial trucks, locomotives, farm machinery and more.
Furthermore, our highways were improved and updated. Many of them were based on old trade route trails blazed over two hundred years ago (or more).
