OD Basics (Drayage & OTR) Flashcards
(50 cards)
What is over-dimensional (OD)?
Any load that exceeds standard legal limits in height, width, length, or weight, requiring permits and often special routing.
What does out-of-gauge (OOG) mean?
Cargo that doesn’t fit within the standard dimensions of a shipping container (typically in open-top or flat rack containers).
What is heavy haul?
Transporting cargo that exceeds legal weight limits and needs specialized trailers, routing, and possibly escort vehicles.
What defines a superload?
An extreme oversize/overweight load that requires detailed route surveys, multiple permits, and sometimes police escorts.
What is project cargo?
Large, complex shipments that involve multiple oversized or overweight pieces, typically for industrial projects like refineries or wind farms.
What does breakbulk refer to?
Cargo that is transported as individual pieces rather than in containers (e.g., machinery, steel coils, wind blades).
What is transloading?
The process of moving cargo from one mode of transportation to another—commonly from containers to RGN or flatbeds at a port.
What does lashing & securing mean?
Tying down cargo to prevent movement during transport using chains, straps, and tie-down hardware.
What is blocking & bracing?
Using wood, metal, or plastic to secure a load within a container or trailer to prevent shifting.
What is a flat rack container?
An intermodal container with no sides or top, used for OOG cargo at ports; cargo is often transloaded to RGN after port.
What is an open-top container?
A container without a fixed roof, used for overheight cargo that can’t be loaded through doors.
What does overheight mean?
Cargo taller than standard legal trailer height (typically 13’6” in the U.S.).
What is overwidth?
Cargo wider than legal road limits (typically 8’6” in the U.S.).
What does overlength refer to?
Loads longer than 48–53 feet (standard trailer lengths).
What is a permit load?
Any load that exceeds DOT legal limits and requires state or local permits for transport.
What does high, wide, heavy (HWH) mean?
A shorthand term for freight that is taller, wider, and/or heavier than legal limits.
What is specialized equipment?
Non-standard trailers or handling tools designed for OD/OW freight (e.g., RGN, extendables).
What are escort vehicles?
Pilot cars that accompany an oversized load to alert traffic and help with safe routing.
What is a pilot car?
A lead or follow vehicle for OD freight that ensures safety and compliance with routing requirements.
What is port drayage?
The local movement of freight to or from a port terminal, typically by truck.
What does port congestion mean?
When terminals are overloaded with containers or freight, causing delays.
What is terminal access?
The ability to retrieve or deliver cargo at port facilities—sometimes restricted by congestion or hours.
What is chassis shortage?
When there are not enough trailers to move containers, delaying port operations and transloads.
What does drayage delay refer to?
Time lost due to port holdups, paperwork issues, or wait times for transloading or permits.
