Two or more main tracks are used for operation as designated in the special instructions. What is this configuration called?

• A. Siding
• B. Regular Train
• C. Two or More Tracks
• D. Camp Car

Answer: (C)

Using two or more main tracks means trains operate on parallel main lines as designated in the special instructions. This setup is used to increase capacity and manage traffic by separating movements, such as meeting or passing trains, on multiple main tracks. The term described in the options is literally “Two or More Tracks.” A siding is a separate track off the main used for storage or meeting trains, not a multi-main-track configuration; a regular train is a train type, not a track arrangement; and a camp car is a crew living quarters car.