Extended Operational and Trade Vocabulary

Container Terminal Operations glossary

The automated-terminal vocabulary: AGVs with their charging-lane, inductive, and battery-swap infrastructure, claim areas and fleet-management buffers, automated stacking cranes and the terminal operating system, and the apron, yard-planning, and quay-interface terms. Grounds each term in the terminal automation system or the moves-per-hour operation it supports.

163 defined terms.

A

AGV (Automated Guided Vehicle): An unmanned horizontal transport vehicle that moves containers between the quay and the stacking yard along predefined paths guided by transponders, magnets, or GNSS.
AGV Battery Swap Station: A fixed yard facility where depleted lithium-ion battery packs on electric AGVs are exchanged for charged packs in a few minutes to maintain continuous duty cycles.
AGV Charging Lane: A dedicated parking aisle equipped with conductive or inductive chargers where battery AGVs replenish energy between transport assignments.
AGV Claim Area: A reserved spatial buffer around an AGV maintained by the fleet management system to prevent collisions during simultaneous path traversal.
AGV Pool: The fleet of AGVs assigned to a single quay crane or block, sized to maintain the target moves-per-hour without queueing at the apron.
AIDC (Automatic Identification and Data Capture): The family of technologies including OCR, RFID, barcodes, and biometrics used at container terminals to capture identifiers without manual keying.
ALV (Automated Lifting Vehicle): An unmanned horizontal transporter that can independently lift a container on or off a yard stack, eliminating the need for an automated stacking crane handoff at the block end.
Anhui Heavy Industry: A Chinese manufacturer producing rubber-tyred gantries, reach stackers, and empty container handlers for port and inland terminal markets.
APM Terminals: Container terminal operator within the A.P. Moller-Maersk group whose throughput data informs container index analysis.
Apron: Quayside area between ship and stacking yard.
ASC (Automated Stacking Crane): A cantilever or full-portal rail-mounted gantry operated without a cabin driver, used to densify yard storage in automated container terminals.
Auto-Steering AGV: An AGV variant employing differential GNSS and inertial navigation rather than embedded transponders for path following.
Auto-Twistlock: A semi-automatic or fully automatic twistlock that engages or releases by a defined mechanical motion of the spreader or container rather than by manual handle rotation.

B

Backreach: Quay side reach behind the STS crane backreach.
BAPLIE: Bayplan/Stowage Plan Occupied and Empty Locations Message, UN/EDIFACT EDI message used between terminals, carriers, and planners.
Battery AGV: An AGV powered by an onboard lithium-iron-phosphate or lithium-ion battery pack rather than a diesel-electric generator set, enabling zero-emission yard operations.
Bay: Transverse slice of a container vessel, numbered from bow to stern in stowage plans.
Bay plan: Stowage diagram showing every container slot on a vessel by bay, row, and tier.
Berth allocation: assignment of vessels to specific berths and time windows.
Berth occupancy: percentage of time a berth is occupied by vessels.
Berth productivity: cargo or moves handled per berth per unit time.
BlueWaters: A maritime software vendor producing stowage planning, ship operations, and terminal interface products used by container lines.
Bombcart: A heavy-duty terminal trailer with a low-deck cargo bed used to shuttle containers between quay cranes and the stacking yard.
Box: Terminal shorthand for an intermodal freight container, regardless of length or type.
Bridge Fittings: Twistlock-style intermediate stacking fittings placed between containers in the same tier to connect adjacent boxes during sea passage.
Buffer Zone: A short-term staging area on the apron where containers wait between quay crane discharge and horizontal transport pickup.

C

Cargotec: The Finnish parent corporation of Kalmar, Hiab, and formerly MacGregor, supplying cargo handling equipment to ports and shipyards.
Cassette System: A container transport scheme using detachable load-carrying cassettes lifted by translifters, common in northern European RoRo and combined terminals.
CATOS (Computer Automated Terminal Operating System): The terminal operating system developed by Total Soft Bank of South Korea, deployed at numerous container terminals worldwide.
Cell Guide: Vertical structure in container hold positively locating containers without lashings.
Chassis: Wheeled trailer that carries an ISO container by road.
CMA CGM Terminal Link: The container terminal investment subsidiary of the CMA CGM Group, holding stakes in terminals across the Mediterranean, Asia, and the Americas.
COFC (Container on Flatcar): The intermodal rail configuration in which a container is loaded directly onto a flatcar without an attached chassis.
Combiterminal: A facility offering combined rail and road intermodal transfers for containers and swap bodies.
Container Freight Station (CFS): An off-dock or on-dock facility where less-than-container-load cargo is consolidated into or stripped from full containers.
Container Moves per Hour (CMPH): The principal productivity metric for quay cranes and berths, counted across discharge and load motions.
Conver-Tek: A supplier of marine lashing equipment including twistlocks, lashing rods, turnbuckles, and stacking cones.
Cosco Shipping Ports: The Hong Kong-listed terminal operating arm of China Cosco Shipping Corporation, holding equity in container terminals across Asia, Europe, and the Mediterranean.
Cross-Trolley: An auxiliary trolley on a dual-trolley ship-to-shore crane that transfers containers from the main trolley to the landside platform.

D

Deck Stow: Container stowage above the hatch covers, secured by twistlocks, lashing rods, and turnbuckles.
Discharge List: The sequenced list of containers to be unloaded from a vessel, produced by the stowage planner and the TOS.
Doosan Vina: A Vietnamese heavy industries plant established by Doosan Heavy Industries, manufacturing port cranes, boilers, and modules.
Double-Stack: A North American intermodal rail configuration carrying two stacked containers per well car.
DP World: The Dubai-headquartered global port operator running container, logistics, and free-zone facilities across more than 70 marine and inland terminals.
Dual-Cycling: A ship-to-shore crane operating mode that alternates loading and discharging within the same vessel call to reduce idle empty hoists.
Dual-Hoist STS Crane: A ship-to-shore crane equipped with two independent hoists on the same main trolley to handle two 40-foot containers in a single landside-waterside cycle.
Dual-Trolley STS Crane: A ship-to-shore crane in which a waterside main trolley delivers containers to a landside trolley via an intermediate platform, decoupling the over-water motion from the apron motion.
Dwell time: duration containers or cargo remain in the terminal.

E

Empty Container Handler: A counterweighted lift truck with a top spreader designed to stack empty containers up to eight high.
eRTG (Electric Rubber-Tyred Gantry): A rubber-tyred gantry crane powered fully from a busbar or cable reel rather than an onboard diesel generator, eliminating local emissions in the stack.
Eurogate: terminal operator with facilities in Hamburg, Bremerhaven, La Spezia, Tangier.
Evergreen Marine Terminal: The terminal interests associated with Evergreen Marine Corporation, including stakes in Taipei Port, Kaohsiung, and Colon Container Terminal.
Export Cut-Off: The deadline before vessel arrival after which export containers may not be received for that sailing.

F

Feeder vessel: Jones Act compliant US-flag vessel ferrying components from port to a foreign-flag installation vessel offshore.
Flatrack: Container with collapsible or fixed end walls and no sides or roof.
Flexible AGV (F-AGV): An AGV able to operate on opportunistic free-ranging paths rather than fixed lanes.
Folding Hatch Cover: A multi-panel hatch cover hinged so that panels fold against each other when opened, common on multipurpose vessels.
Forecast (Tideworks): The vessel planning and stowage product within the Tideworks software suite.

G

Gantry Travel: The longitudinal motion of a portal crane along its rails or wheel paths.
Gate Automation: The use of OCR, RFID, license plate readers, and kiosks at the terminal gate to identify trucks, drivers, and containers without manual data entry.
GCP (Gross Crane Productivity): The total moves performed by a quay crane divided by the gross hours alongside, including all delays.
Gottwald: A German mobile harbor crane and AGV builder acquired by Konecranes, with the AGV portfolio later transferred to Konecranes Port Solutions.
Ground Slot: A single 20-foot or 40-foot stack footprint in the yard, identified by block, bay, and row.

H

Hatch cover: Watertight cover over a cargo hatch.
High-Cube (HC): A container 9 feet 6 inches in external height, one foot taller than a standard ISO container.
Hutchison Ports: global terminal operator headquartered in Hong Kong.
Hybrid RTG: RTG with battery and diesel for fuel savings, e.g., Konecranes hybrid RTG.
Hyundai Samho Heavy Industries: HHI group yard building larger vessels.

I

ICTSI (International Container Terminal Services Inc.): The Philippine-headquartered global terminal operator with concessions across Asia, the Americas, Africa, and Europe.
Import Pre-Advice: An electronic notice from a shipping line to a terminal listing inbound containers, weights, and destinations ahead of vessel arrival.
IMPSA: An Argentine heavy engineering firm that has supplied ship-to-shore quay cranes and hydroelectric equipment internationally.
INFORM SyncroTESS: A real-time optimization software product by INFORM GmbH used for equipment dispatch in container, intermodal, and bulk terminals.
Inter-Modal Vehicle (IMV): A horizontal transport vehicle capable of interfacing with both ship-to-shore cranes and stacking cranes without an intermediate crane handoff.
Intermodal yard: rail yard within or adjacent to a marine terminal.
ISO 1496-1: The international standard specifying the structural design, testing, and rating requirements for general-purpose freight containers.

K

K-Motion: The terminal operating system product of Kalmar, designed for automated and conventional container terminals.
Kalmar: Cargotec brand for terminal tractors, reach stackers, straddle carriers.
Konecranes: Finnish manufacturer of STS, RTG, RMG, and reach stackers.
Konecranes Noell: The Konecranes business unit derived from the former Noell Mobile Systems of Germany, providing straddle carriers and automated stacking cranes.
KW Marine: A maritime software supplier providing stowage and loading computer products for container vessels.

L

Lashing bridge: Elevated platform above the hatch covers from which containers are lashed.
Lashing rod: Steel bar tensioned by a turnbuckle to lash containers.
Liebherr: A Swiss-headquartered industrial group whose maritime cranes division supplies mobile harbor cranes, ship cranes, ship-to-shore quay cranes, and rubber-tyred gantries.
Lift-AGV: A variant of the AGV able to deposit and pick up containers directly on or from racks at the block interface, eliminating one stacking crane move per box.
List: Angle of permanent heel.
LOLO (Lift-On Lift-Off): A vessel or operation mode in which cargo is loaded and discharged vertically by crane, as distinct from RoRo.

M

MacGregor: Common type of folding steel hatch cover.
Mainsail (Tideworks): The vessel and yard operations module within the Tideworks software suite.
Mi-Jack: A US-headquartered manufacturer of rubber-tyred gantries widely used in North American intermodal rail terminals.
Mitsui Engineering and Shipbuilding (MES): The Japanese engineering group whose Mitsui Miike Machinery operations have supplied quay cranes, transfer cranes, and AGVs to container terminals.

N

Navis N4: Navis terminal operating system, deployed at over 300 terminals worldwide.
NCP (Net Crane Productivity): The moves per crane hour calculated only for productive working time, excluding delays attributable to vessel, terminal, or weather.
Noell: A historic German port equipment brand, the source of straddle carrier and automated stacking crane designs now sold by Konecranes.

O

OCR Portal: A gantry or canopy fitted with cameras and lighting that captures container number, ISO code, IMO placards, and damage imagery as the box passes underneath.
Onboard: A vessel stowage and loading computer software brand used on container ships.
One-Over-Two: A stacking crane configuration able to pick a container from the top of a two-high stack without intermediate moves, used with reach stackers and yard cranes.
Open top container: Container with removable tarpaulin roof.
OPUS Terminal: A terminal operating system developed by CyberLogitec used at container terminals in Asia, the Middle East, and the Americas.
Outreach: distance an STS crane spreader can reach beyond the waterside rail.
Over-Panamax STS Crane: A ship-to-shore crane sized to work vessels wider than the original Panama Canal locks, with outreach typically 17 to 18 rows.

P

Paceco: A historic ship-to-shore crane brand, originator of the Portainer design, with successor operations in Italy and the United States.
Panamax STS Crane: A ship-to-shore crane sized to work vessels within the original Panama Canal lock dimensions, with outreach typically 13 rows.
Pier: Berthing structure projecting from shore.
Pontoon Hatch Cover: Hatch cover type; designed deck loading specified in stability booklet.
Portainer: original Paceco brand for STS cranes, now generic.
Pre-Stowage Plan: An initial vessel stowage proposal prepared by the line's central planning office and sent to the loading terminal for refinement.
Productive Move: A container move that advances vessel loading or discharge, as opposed to a yard rehandle.
PSA (Port of Singapore Authority) International: The Singapore-headquartered global terminal operator with flagship terminals at PSA Singapore Tuas and equity stakes worldwide.
PSA Singapore Terminals: The Singapore container terminals at Tuas, Pasir Panjang, Brani, and Keppel operated by PSA.

Q

Quay: Solid berthing structure parallel to the shore.
Quay Crane: Container terminal ship-to-shore crane.

R

RBS (Realtime Business Solutions): An Australian terminal operating system vendor whose TOPS and TOPX products are deployed at container terminals worldwide.
Reach stacker: Heavy duty container handling vehicle.
Reefer container: Refrigerated container with integral plant.
Reefer Plug: Onboard or terminal 440 V socket for reefer power.
Rehandle: A non-productive yard move in which a container is lifted and reset to access a target box beneath or behind it.
RFID Gate Tag: A windscreen-mounted radio frequency identification credential on a drayage tractor used to authenticate the truck visit at the terminal gate.
RMG (Rail-Mounted Gantry): A portal crane running on fixed rails, used in stacking yards or intermodal yards for high-density storage and rail transfer.
Row: A transverse position number within a bay on a container vessel, with even numbers to port and odd to starboard from the centerline.
RTG (Rubber-Tyred Gantry): A self-propelled rubber-tired portal crane that straddles a stack of containers in the yard, typically six or seven containers wide and four to six high.

S

Sany SCC: A Chinese heavy industry group manufacturing port machinery including reach stackers, empty handlers, rubber-tyred gantries, and ship-to-shore cranes.
SeaLink (MacGregor): The MacGregor brand family of semi-automatic and fully-automatic twistlocks for container lashing.
Semi-Automatic Twistlock (SATL): Twistlock that locks automatically on landing but is released manually.
Shuttle carrier: SC variant for transporting containers between STS and ASC stacks.
Side-Rolling Hatch Cover: A multi-panel hatch cover whose panels roll athwartships on rails to clear the hold opening.
Single-Hoist STS Crane: A ship-to-shore crane with one trolley and one hoist, the conventional configuration.
Single-Trolley STS Crane: A ship-to-shore crane in which one trolley performs both the over-water and over-apron motion in a single cycle.
Solvo.TOS: A terminal operating system developed by SOLVO used at container, multipurpose, and bulk terminals.
SSA Marine: A US-headquartered container terminal operator with facilities across North and South America and equity in international terminals.
Stack Height: The maximum number of containers permitted in a vertical stack, set by structural rating, crane reach, and operational rules.
Stacker Trailer: A heavy trailer used in some terminals to receive containers from straddle carriers and present them to other equipment.
Stowage plan: Plan showing container or cargo positions.
Straddle carrier: yard vehicle straddling and lifting containers.
STS (Ship-to-Shore) Crane: The class of dockside container crane that loads and discharges vessels at the quay.
Super-Post-Panamax STS Crane: A ship-to-shore crane sized for vessels wider than the New Panamax lock, with outreach above 22 rows and lift heights matching neo-Panamax and ultra-large container vessels.

T

Tandem Lift: Use of two cranes simultaneously on a single load.
Tank container: ISO tank container for liquids and gases.
TBA: A terminal automation and simulation software supplier, source of the Cosmos terminal operating system family and TIMESQUARE emulation tools.
Terminal Operating System (TOS): The integrated software platform that plans and controls vessel, yard, gate, and rail operations at a container terminal.
Terminal tractor: yard tractor or hostler towing chassis, e.g., Terberg YT, Kalmar Ottawa, MAFI.
Tideworks Technology: A US-headquartered terminal software vendor producing the Mainsail, Forecast, Spinnaker, and TrueGate product suite.
Tier: Horizontal layer of containers in a stack, numbered 02, 04 upward on deck.
TOFC (Trailer on Flatcar): The intermodal rail configuration in which a road trailer is carried on a flatcar, also known as piggyback.
Top Lifter: A counterbalanced lift truck fitted with a top-lift spreader used for laden containers in lower stacks.
TOPS (RBS): A terminal operating system product of Realtime Business Solutions used at container terminals worldwide.
Translifter: A wheeled trailer that lifts and transports cassettes carrying containers or other unitized cargo.
Transtainer: A historic Paceco trademark, used generically in some markets for rubber-tyred gantry cranes.
Trim: Difference between forward and aft drafts.
Trolley: STS or RMG trolley carrying the spreader along the boom or trolley girder.
Truck Appointment System (TAS): A web-based or kiosk-based scheduling system that assigns drayage trucks to specific gate windows to reduce queueing.
Twin lift: STS crane fitted with a spreader handling two 20 ft containers simultaneously.
Twin-Twenty Spreader: A spreader fitted with retractable twenty-foot heads enabling single or twin lifts of 20-foot boxes.
Twistlock: Locking device joining containers at corner castings.

V

VDL Containersystemen: A Dutch industrial group within the VDL family that has supplied AGVs and other heavy vehicle systems to container terminals.
Vehicle Booking System (VBS): A British and Australian term for a truck appointment system used at container terminals.
Vessel Loading Computer: Onboard software that calculates stability, strength, and stress for each stowage proposal during loading and unloading.

W

Weight Per Move (WPM): A productivity metric expressing the average weight handled per crane lift, used to track twin and tandem lift uptake.
Wharf: Quay alongside which vessels berth.

Y

Yang Ming Terminal: The terminal interests of Yang Ming Marine Transport Corporation, including stakes in Kao Ming Container Terminal at Kaohsiung.
Yard block: stacking module of rows, tiers, and bays.
Yilport Holding: The Turkish container terminal operating arm of the Yildirim Group, with terminals in Europe, the Americas, and Asia.

Z

Zenon Hatch Cover: A historic European pontoon hatch cover product line used on bulk and multipurpose vessels.
ZPMC (Shanghai Zhenhua Heavy Industries): The Chinese state-owned manufacturer that supplies a majority share of new ship-to-shore quay cranes and a large share of rubber-tyred and rail-mounted gantries delivered worldwide.