As trains and hovercrafts are the main forms of transportation across Panem, the railway system spans over much of the land, at least going through every major city in a District. Many stretches of the railway were destroyed in the rebellion, but the Capitol has placed extra importance on rebuilding them (at least all routes that connect to the Capitol). Only Capitol-approved workers and travelers are accepted on the train cars, but there's always room for stowaways, or people using the railways as guides as they trek across Panem.