An official website of the United States government
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Graphic Version
Truck turn time includes waiting/queue time and terminal time.
Terminal turn times vary by time of day and transaction type Port-wide average terminal turn times could be compiled from terminal information systems Compiling queueing times would...Graphic Version
Crane moves per hour as a terminal efficiency metric poses methodological and data collection challenges.
“Cranes moves” may include handling hatch covers and restowing containers as well as movement of imports and exports “Hours...Graphic Version
Vessel dwell time is a function of:
The number of containers or tonnage to be loaded and unloaded Terminal resources available (e.g. cranes per berth and vessel) The efficiency with which those resources are employedVessel dwell time is not...
Graphic Version
Stacked container yard with chassis pool means:
Higher storage density with CY lift equipment Four longshore moves, two trucker movesOakland Terminal June, 2014
Graphic Version
Annual TEU per Acre has been used to compare U.S. container ports with each other and (often unfavorably) with foreign ports
Annual TEU per acre can be a misleading metric.
TEU per acre measures land productivity, but land may be the least costly...Graphic Version
Common Accessible Port Data
Cargo Tonnage Terminal Acres Berths & Length Vessel/Barge Calls & Sizes Vessel/Barge Dwell TimePotential Common Port Metrics
Tons per Acre Tons per Berth/Berth Foot...Graphic Version
Utilization is throughput/capacity expressed as a percentage
Utilization is strongly affected by the timing of capacity additions versus demand growth Low utilization may signal low productivity, loss of demand, or reserve capacity High utilization...Graphic Version
Assumptions and rules of thumb
Maximum annual TEU slot turnover = 70 turns (5 day dwell, 350 days/yr) Crane available 16 hours/day (two shifts), 250 days/yr Modern crane maximum = 35 moves/hr Vessel spacing at berth = vessel beam...Graphic Version
Container yard capacity depends on acreage and storage density
Lower storage densities usually mean less handling and lower cost Terminal designers and managers “densify” to accommodate rising volume...
Graphic Version
Capacity may be based on port/terminal estimates, third-party estimates, or engineering studies
Bulk, container, and inland ports may have different capacity metrics and concerns
Near-term throughput capacity may be limited by one or more factors,...