What does Bobtail mean?

To bobtail is to drive a tractor (the truck cab) with nothing attached behind it — no chassis, no container, no trailer. The term paints the picture: a truck running "short" without its tail. In drayage it commonly describes a driver heading to a terminal or depot to pick up equipment, or returning after dropping a load, with an empty tractor.

Bobtail miles are pure cost with no freight generating revenue, so carriers work hard to reduce them. Fetching a chassis in a chassis split, repositioning between yards, or returning empty from a delivery are all bobtail movements that eat fuel and driver hours.

Bobtailing also carries a safety note: a tractor without the weight of a trailer over its drive axles handles and brakes differently, which is why it is treated as a distinct operating condition. Minimizing bobtail moves through better dispatch planning — and tactics like street turns — is a mark of an efficient drayage operation.