An example of haulage is the process of moving furniture up flights of stairs.
The main haulage tracks are laid at the bottom of the stope, which thus forms the level.
Haulage roads are driven in the ore so as to divide the floor into areas of convenient size.
The subdrift system requires a smaller amount of narrow work in excavating the necessary haulage roads, and is therefore better adapted to hard ores in which such narrow work is expensive.
Trolley haulage lacks the flexibility of steam or compressed air haulage, and is limited to main lines because the wires must be strung throughout the length of the line.