GlossaryBobtail
A bobtail is a truck tractor or prime mover operating without an attached trailer. It commonly occurs when a truck travels between depots, returns after dropping off a trailer, or moves to collect another trailer.
Bobtail movements are part of Commercial Road Transport Operations, particularly when transport companies use separate truck tractors and trailers for different collections and deliveries.
For example, a truck tractor may deliver a loaded trailer to a distribution centre, disconnect it, and travel to another location to collect a different trailer. During the journey without a trailer, the vehicle is operating as a bobtail.
Although the tractor is not carrying a trailer, the movement still involves fuel consumption, driver time, vehicle wear, and road safety considerations.
Bobtailing is different from deadheading. Deadheading generally refers to travelling without revenue-generating cargo, which may involve an empty trailer.
For transport operators, effective vehicle allocation and trailer scheduling can help reduce unnecessary bobtail movements and improve fleet utilisation.
Frequently Asked Questions
No. Bobtailing refers specifically to a truck tractor operating without a trailer. An empty truck or tractor pulling an empty trailer is different.
Yes, provided the tractor is compatible with the trailer and meets the relevant coupling, mass, and operating requirements.
It can. Fuel, driver time, maintenance, and vehicle operating costs still apply, even when the tractor is travelling without a trailer.
Yes. Operating without a trailer changes the tractor's weight distribution and handling characteristics, requiring appropriate driving precautions.
Bobtail movements may be necessary to collect trailers, reposition tractors, or return to depots after trailer drop-offs.