You are here

Driver's Handbook on Cargo Securement - Appendix B: Glossary

Aggregate Working Load LimitThe summation of the working load limits or restraining capacity of all devices used to secure an article on a vehicle.
Anchor pointPart of the structure, fitting, or attachment on a vehicle or cargo to which a tiedown is attached.
Article of cargoA unit of cargo, other than a liquid, gas, or aggregate that lacks physical structure (e.g. grain, gravel, etc.), including articles grouped together so that they can be handled as a single unit or unitized by wrapping, strapping, banding, or edge protection device(s).
BandingA strip of material that may be used to unitize articles and is tensioned and clamped or crimped back upon itself. (same as "Strapping")
Bell Pipe ConcretePipe whose flanged end is of larger diameter than its barrel.
BinderA device used to tension a tiedown or combination of tiedowns.
BlockingA structure, device, or another substantial article placed against or around an article to prevent horizontal movement of the article.
BolsterA transverse load bearing structural component, particularly a part of a log bunk.
BoulderA large piece of natural rock that may be rounded if it has been exposed to weather and water, or is rough if it has been quarried.
BracingA structure, device, or another substantial article placed against an article to prevent it from tipping that may also prevent it from shifting.
BulkheadA vertical barrier across a vehicle to prevent forward movement of cargo.
BundleA group of articles of that has been unitized for securement as a single article.
BunkA horizontal bolster fitted with a stake at each end that together support and contains a stack of logs, and is installed transversely
Cab shieldA vertical barrier placed directly behind the cab of a tractor to protect the cab in the event cargo should shift forward.
CargoAll articles or material carried by a vehicle, including those used in operation of the vehicle.
ChockA tapered or wedge-shaped piece used to secure round articles against rolling.
CleatA short piece of material, usually wood, nailed to the deck to reinforce blocking.
Coil bunkA device that keeps timbers supporting a metal coil in place.
ContainedCargo is contained if it fills a sided vehicle, and every article is in contact with or sufficiently close to a wall or other articles so that it cannot shift or tip if those other articles are also unable to shift or tip.
Container Chassis VehicleA vehicle especially built and fitted with locking devices for the transport of intermodal containers.
CradleA device or structure that holds a circular article to prevent it from rolling.
CrosswiseSame as "Lateral"
CrownThe rounded profile of the top of a stack of logs, when viewed from the ends of the stack.
Cut-to-length logsIncluded in shortwood.
DeckThe load carrying area of a truck, trailer, or intermodal container.
Direct tiedownA tiedown that is intended to provide direct resistance to potential shift of an article.
Direct tiedownAll loose materials used to support and protect cargo.
Dunnage bagAn inflatable bag intended to fill otherwise empty space between articles of cargo, or between articles of cargo and the wall of the vehicle.
Edge protectorA device placed on the exposed edge of an article to distribute tiedown forces over a larger area of cargo than the tiedown itself, to protect the tie-down and/or cargo from damage, and to allow the tiedown to slide freely when being tensioned.
Eye (of a cylindrical object)The hole through the centre of the article.
Flatbed vehicleA vehicle with a deck but no permanent sides.
Frame vehicleA vehicle with skeletal structure fitted with one or more bunk units for transporting logs. A bunk unit consists of a front bunk and a rear bunk that together cradle logs. The bunks are welded, gusseted, or otherwise firmly fastened to the vehicle's main beams, and are an integral part of the vehicle.
Friction matA device placed between the deck of a vehicle and car or between articles of cargo, intended to provide greater friction than exists naturally between these surfaces.
gThe acceleration due to gravity, 9.823 m/sec2 (32.2 ft/sec2).
Gross Combination Weight RatingThe value specified for the vehicle by the "Manufacturer" as being the maximum of the sum of the "Gross Vehicle Mass" of the drawing vehicle plus the sum of the "Axle Loads" of all vehicles being drawn.
Gross Vehicle Weight RatingThe maximum laden weight of a motor vehicle as specified by the "Manufacturer."
HeadboardA vertical barrier across the front of the deck of a vehicle to prevent forward movement of cargo.
Hook-lift ContainerA specialized container, primarily used to contain and transport materials in the waste, recycling, construction/demolition, and scrap industries, which are used in conjunction with specialized vehicles, in which the container isloaded and unloaded onto a tilt frame body by an articulating hook-arm.
Indirect tiedownA tiedown whose tension is intended to increase the pressure of an article or stack of articles on the deck of the vehicle.
Integral Locking DeviceA device that is purposely designed and used to restrain an article of cargo on a vehicle by connecting and locking attachment point(s) on the article to anchor point(s) on the vehicle.
Integral Securement SystemA feature of roll-on/roll-off containers and hook-lift containers and their related transport vehicles in which compatible front and rear hold down devices are mated to provide securement of the complete vehicle and its cargo
Intermodal ContainerA reusable, transportable enclosure that is especially designed with integral locking devices that secure it to a container chassis trailer to facilitate the efficient and bulk shipping and transfer of goods by, or between various modes of transport, such as highway, rail, sea, and air.
LateralSideways, transverse, crosswise, or across a vehicle.
LengthwiseSame as "Longitudinal"
LiftA tier of dressed timber, steel, or other materials.
Load binderA binder incorporating an over-centre locking action.
Load capacityThe weight of cargo that a vehicle can carry when loaded to its allowable gross vehicle weight in a particular jurisdiction.
LogsInclude all natural wood that retains the original shape of the bole of the tree, whether raw, partially, or fully processed. Raw logs include all tree species with bark that have been harvested and may have been trimmed or cut to some length. Partially processed logs that have been fully or partially debarked or further reduced in length. Fully processed logs include utility poles, treated poles, and log cabin building components.
LongitudinalLengthwise or along the length of a vehicle.
LongwoodAll logs that are not shortwood and are over 4.9 m (16 feet) long. Such logs are usually described as long logs or treelength.
PalletA platform or tray on which cargo is placed so that it can be handled as an article. (Same as "Skid")
Pole TrailerA trailer whose body consists simply of a drawbar by which the trailer is drawn.
Rail vehicleA vehicle whose skeletal structure is fitted with stakes at the front and rear to contain logs loaded crosswise.
RestrainedAn article that is not contained, but is prevented from tipping or shifting.
Rub RailA rail along the side of a vehicle that protects the side of the vehicle from impacts.
SecuredMeans by which cargo is contained or restrained.
Securing DeviceAny device specifically manufactured as a means to attach or secure cargo to a vehicle or trailer.
ShackleA U-shaped metal coupling link closed by a bolt.
ShiftA change in the longitudinal or lateral position or orientation of an article.
Shoring barA structural section placed transversely between the walls of a vehicle to prevent cargo from tipping or shifting.
ShortwoodAll logs typically up to 4.9 m (16 feet) long. Such logs are often described as cut-up logs, cut-to-length logs, bolts, or pulpwood. Shortwood may be loaded lengthwise or crosswise, though that loaded crosswise is usually no more than 2.6 m (102 inches) long.
Sided VehicleA vehicle whose cargo compartment is enclosed on all four sides by walls of sufficient strength to contain cargo, where the walls may include latched openings for loading and unloading, and includes vans and dump bodies, and includes a sided intermodal container carried by a vehicle.
SkidA platform or tray on which cargo is placed so that it can be handled as an article. (Same as "Pallet")
SpacerMaterial placed beneath an article or between tiers of articles to
StackA single column of articles placed one above another.
Stack of logsLogs aligned parallel and heaped one upon others.
StakeA member mounted close to vertical on a vehicle frame or as part of a bunk that serves to immobilize cargo placed against it. (Same as "Standard")
Stake PocketA female housing fixed to the side or ends of a vehicle to receive a stake or peg, and may also be used as an anchor point.
StandardA member mounted close to vertical on a vehicle frame or as part of a bunk that serves to immobilize cargo placed against it. (Same as "Stake")
StrappingA strip of material that may be used to unitize articles and is tensioned and clamped or crimped back upon itself. (Same as "Banding")
Tarpaulin (tarp)A waterproof sheet used to cover cargo.
TiedownA combination of securing devices which form an assembly that attaches cargo to, or restrains cargo on, a vehicle or trailer, and is attached to anchor point(s).
Tiedown assembly(Same as "Tiedown").
TierOne layer of articles that are stacked one upon another.
TipAn article falls over.
TrackA set of plates on a tractor wheel that provide mobility for a tracked vehicle.
Tractor-pole trailerA vehicle that carries logs lengthwise so that they form the body of the vehicle. The logs are supported by a bunk located on the rear of the tractor and another bunk on the skeletal trailer. The bunks may rotate about a vertical axis, and the trailer may have a fixed, scoping, or cabled reach, or other mechanical freedom, to allow it to turn.
Transverse(Same as "Lateral")
Twist lockA device designed to support and fasten one corner of an intermodal container to a container chassis vehicle.
Unitized loadA number of articles grouped together with sufficient structural integrity that they can be handled, transported and secured as a single article.
VehicleA truck, truck tractor, trailer, or semitrailer individually or in combination.
Void FillerMaterial used to fill a void between articles of cargo and the structure of the vehicle that has sufficient strength to prevent movement of the articles of cargo.
WedgeA tapered piece of material, thick at one end and thin at the other.
WellThe depression formed between two cylindrical articles when they are laid with their eyes horizontal and parallel against each other.
WinchA device for tensioning a webbing or wire rope tiedown that is fitted with means to lock the initial tension.
Working Load Limit (WLL)The maximum load that may be applied to a component of a cargo securement system during normal service, usually assigned by the manufacturer of the component.
Updated: Sunday, March 16, 2014
Submit Feedback >