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 employed

Vessel dwell time is not a linear function of cargo volume, since each vessel typically requires:

• 2-4 hours to be tied up and readied for cargo operations
• 2-4 hours to be readied for departure after cargo operations

Vessel dwell time also varies with the timing of arrival and departure.

• Late vessels may result in overlapping calls and delays
• A vessel that arrives in mid-shift my not be worked until the start of the next full shift