Easy Load / Unloading of Freight The loading and unloading of the various types of freight that can be carried on a rail line depends on what is being carried, there are all sorts of methods that are available, and new methods are being thought of each day. The BorderTransportationSystem will be carrying Container Units, Building Materials, Vehicles, Military supplies, local garbage, and more.  There will be a restriction in order to prevent catastrophic spills or explosions, that being that no loose products like dirt, sand, or coal, no nuclear waste, and no flammable items like gas containers, fuel oil, or hazardous chemicals will be allowed on the system.  Index of ... Loading and unloading on running lines