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General

Legacy ID
201

Key Questions

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Key questions

How do we choose useful, fair, and consistent port metrics? How do we address the diversity of port types and operations? How to we use the opportunity to provide insight and tell the port industry story?

Truck Turn Time

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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...

Crane Moves per Hour

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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...

Vessel Dwell Time

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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 employed

Vessel dwell time is not...

TEU per CY Acre

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Stacked container yard with chassis pool means:

Higher storage density with CY lift equipment Four longshore moves, two trucker moves

Oakland Terminal June, 2014

Annual TEU per Acre

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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...

Bulk & Container Port Basics

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Common Accessible Port Data

Cargo Tonnage Terminal Acres Berths & Length Vessel/Barge Calls & Sizes Vessel/Barge Dwell Time  

Potential Common Port Metrics

Tons per Acre Tons per Berth/Berth Foot...

How do we measure utilization and productivity?

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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...

Critical Capacity Assumptions: Example

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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...