What is the standard track gauge in the U.S?​

The demand for freight:​

The railroads dominate the market for:​

What is a Private Carrier?​

Shippers using air cargo transport may have to pay an over-dimensional charge. The charge is assessed by the carrier to gain a more appropriate revenue in which situation?​

What type of trailer can be coupled in twos and threes?​ 48 foot

The water carrier’s principal competitor for the movement of grain, coal, and ores is which mode of transportation?​

​ Air carrier revenues are concentrated in which group of carriers?

What led to the erosion of rail dominance in U.S. transportation?​

​ The airlines utilize technology to offer faster and more efficient service for their customers. One application of technology, developed by the airlines, is a paperless system called the Fast Flow Program. What is the Fast Flow Program designed to do?