What is Deadhead?

In road freight, deadhead miles are the distance a vehicle runs empty, with no revenue freight aboard — out to a pickup or home from a delivery.

Deadhead is the one leg in freight named for what is not on the vehicle. Nothing is aboard, so nothing is being sold, and the trip still spends fuel, wear and the driver's only working day.

Where the empty miles are recorded, and what they cost

An empty vehicle has no shipper, no consignee and no cargo, so it generates none of the paperwork the rest of the operation runs on: no bill of lading, nothing to invoice against. Deadhead surfaces only in the vehicle's own records — the electronic log that keeps the driver's hours, the empty-mile line on a settlement statement, and the distance a broker quotes beside a load before anyone accepts it.

The measurement is a ratio, not a rate: empty miles over total miles, for a truck, a lane or a week. It matters because cost per mile barely notices the difference. The American Transportation Research Institute put the industry-average cost of operating a truck at $2.336 a mile in 2025^[atri], and the fuel, tires and maintenance inside that figure are incurred by the distance rather than by the freight.

The scarcer input is the clock. Federal hours-of-service rules allow a property-carrying driver 11 hours of driving after 10 consecutive hours off duty, inside a 14-hour window that begins when the shift does^[hos]. Repositioning is driving, so an hour spent empty is an hour that is no longer available to a paying load.

Deadhead, bobtail and the empty container

Three words for an empty vehicle are not interchangeable. Deadhead is about revenue: the vehicle is in service and carrying nothing that pays. Bobtail is about equipment — a tractor running with no trailer attached — and it is also an insurance question, because the federal leasing rules make the lease say who provides coverage for the equipment, bobtail insurance included^[lease]. An empty container going back to a marine terminal is a third thing again: a road move on somebody else's clock.

The last row is where the road stops. Returning the empty box is trucking, but its urgency belongs to the free time the ocean carrier allows on the container, metered by the terminal under a rulebook this entry does not cover.

Who pays for the empty leg, and what a dispute turns on

Between shipper and carrier, almost nobody pays for it as a line item. Deadhead is not an accessorial and no tariff meters it; it is a cost the carrier prices into the rate for the loaded leg. The two exceptions are contractual: a rate confirmation can quote paid deadhead into a pickup far from anywhere, and a load cancelled after dispatch is settled as truck ordered not used — a negotiated flat sum rather than one of the standard accessorial charges.

Between a carrier and an owner-operator the empty leg is a live argument, and federal law gives it a shape. The statute lets the Secretary require a carrier that runs vehicles it does not own to put the arrangement in writing, state the compensation, and have control of and be responsible for operating those vehicles as if it owned them^[control]. The leasing regulation does exactly that: the amount paid for the equipment and the driver's services must be stated on the face of the lease, and the lessor gets copies of the documents needed to check whether a charge is valid^[lease].

So the argument is rarely about the word. It is about which empty miles were counted, on which mileage basis, and measured from where — the last delivery, or wherever the vehicle actually was.

The limits of the definition

The contract outranks the dictionary. No freight regulation defines deadhead or fixes what an empty mile is worth. Whether those miles are paid, at what rate and measured how, is a matter for the lease, the carrier's pay schedule or the rate confirmation — and where any of them disagrees with a definition, including this one, the paperwork wins.

The word moves with the mode. In aviation, a deadheading crew member is a person riding as a passenger to be repositioned, not an empty aircraft; a vessel carrying no cargo sails in ballast. This entry is written for road freight, which is the freight Shyftbase runs — no air, ocean, port or customs work.

Zero deadhead is not the target. Some empty running is the cheapest move available: repositioning into a market where the next load pays more, or getting the vehicle home for the first pickup of the morning. Planning software does not delete the empty leg; it shortens it — matching a return load where one exists, ordering stops so the gaps are small — which is the work behind route optimization and mid-mile planning. The measured version of that question is what AI routing actually saves.