![]() Intermodal – Movement of freight by two or more means, for example, truck and ship, or rail and air. Hub Meter – An odometer attached to the axle of a trailer with the purpose of recording the mileage of the trailer. Hours of Service (HOS) – A Department of Transportation regulation regarding the number of hours that commercial drivers work during interstate operations. HOV – A lane on interstates reserved primarily for cars and buses that carry two or more people. Hazardous Material (HAZMAT) – A material that the Environmental Protection Agency has classified as dangerous and regulated by the Department of Transportation. Gross Vehicle Weight (GVW) – Combined weight of truck plus freight. Division of DOT tasked with safety regulations for commercial drivers.įor Hire Carrier – Third-party company that moves freight for senders.įreight – Goods that are transported, also known as cargo or payload. Used for freight such as large machinery.įMCSA – Federal Motor Carrier Safety Administration. It is a separate unit from the truck and the trailer themselves.Ĭonverter Dolly – A separate axle system with a fifth wheel used to connect two semitrailers for towing.Ĭonvoy – Radio communication referring to 2 or more trucks heading in the same direction.Ĭopy – Radio communication for acknowledgement of message received.Ĭounty Mountie – Radio communication for Sheriff’s Department.Ĭross Dock – A dock where freight is transferred to other trucks, without storing first.ĭiesel Exhaust Fluid – Urea-based chemical used to reduce diesel emissions.ĭistribution Center – Warehouse where goods are shipped out.ĭock Height – Standard height of most trailers and docks measured from the ground, usually 48” to 54”.ĭOT – Department of Transportation, federal agency responsible for regulating a federally funded highway.ĭoubles – A truck towing two semitrailers that are connected by a converter dolly.ĭouble Nickel – Radio communication for 55 miles per hour.ĭrive Axle – The two axles right behind the cab that receive power from the transmission.ĭrop – A trailer that is delivered for loading or unloading.ĭry Van – The standard non-refrigerated trailer.ĭual Wheels – A pair of wheels on the same side of the axle.Įlectric On-Board Recorder (EOBR) – An on-board device that record information such as speed, idle time, etc.Įxempt Carrier – A carrier that is not regulated by the Interstate Commerce Commission.įifth Wheel – This is a sliding plate on the rear of the truck that has a slot for the trailer kingpin and locks the truck and the trailer together.įlatbed – A trailer that is simply a flat platform on which to load items that cannot fit into a traditional enclosed trailer. Divided into different classifications.Ĭommercial Vehicle – Any vehicle that is doing business and carrying cargo.Ĭontainer – Rectangular box used to send freight by ship, train, or truck. For example, a tractor and a trailer make up a combination vehicle.Ĭome Again – Radio communication asking that the message be repeated.Ĭome Back – Radio communication asking for a response.Ĭommercial Driver License (CDL) – Required to drive vehicles for commercial purposes. The wheels continue to rotate just enough to keep from freezing and allows for faster stopping.īill of Lading – Contract between the shipper (consignor) and the receiver (consignee).īlind Spot – Places not visible to the driver via the windshield, windows, nor mirrors.īreak Bulk – Splitting a shipment into smaller shipments.īreak – Radio communication request to use the channel for instance, “Breaker 19”, means a request to use channel 19.ĬabOver – The cab of the vehicle that sits over the engine.Ĭargo Weight – Equals weight of freight plus gear plus supplies on truck.Ĭarrier – The transportation service provider.Ĭartage Company – This is a company that transports good within the local area only.Ĭhannel 19 – A channel on the citizens band and perhaps the most popular channel.Ĭheck Point Charlie – Radio communication for police check point.Ĭitizens Band Radio (CB) – 40 radio channels within the 27 MHz band used for short distance communications for the general public.Ĭombination Vehicle – A vehicle made up of two or more units. Pressure to the bags is controlled by valves and provides a more steady ride.ġ0-4 – Radio terminology for “Affirmative.”ġ0-20 – Radio terminology for “Location.”ġ0-33 – Radio terminology for “Emergency situation.”ġ0-200 – Radio terminology for “Police are needed.”Īnchor It – Apply full breaking power for immediate stoppage.Īnti-lock Breaking System (ABS) – Computerized control of brakes that keeps the wheels from locking up and sliding. Air Ride – A suspension system that uses air filled bags instead of springs. ![]()
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