- Select a route from the dropdown box, enter freight tonnage and click calculate. Add 2 tonnes for gross TEU tonnage, 3 tonnes for FEU.
- Shipping routes comprise direct and indirect links between sea ports.
- Mode calculations based on CO2 emssions in grams per tonne/km for heavy road (92), rail (23), coastal shipping (14).*
*Sea Change: Transforming Coastal Shipping in NZ, MoT, May 2008, p10.