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A Branch-and-Price Approach for a Ship Routing Problem ... - gerad

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Inventory levels<br />

Upper Alarm<br />

Zone<br />

Preferred<br />

Inventory Zone<br />

Lower Alarm<br />

Zone<br />

Unpumpables<br />

Hard Maximal<br />

Inventory Level<br />

(tank top/capacity)<br />

Soft Maximal<br />

Inventory Level<br />

(Alarm Level +)<br />

Actual Inventory<br />

Level<br />

Soft Minimal<br />

Inventory Level<br />

(Alarm Level -)<br />

Hard Minimal<br />

Inventory Level<br />

(Unpumpable Level)<br />

0<br />

Ullage<br />

7

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