1. Lloyd’s Register EMEA Key contribution of Oceanographic research in providing an economic solution to Zeebrugge’s lack of hinterland connectivity Paul Moeyaert

2. Lloyd’s Register EMEA Wave measurement

3. Lloyd’s Register EMEA Solutions: Noorderkanaal Dockships “extended” estuair regime

4. Lloyd’s Register EMEA Access to the network of inland waterways from Zeebrugge: Traditional inlandwater tankers Provided “good’ weather Coasters But too high requirements And high investment/operational costs Due to lack of reliable knowledge of the risk-level

5. Lloyd’s Register EMEA

6. Extended Estuair Based on Risk analyses Simulation of ships motions and behaviour as a response to the 10years wave spectra: in the particular sea area

7. Lloyd’s Register EMEA Statistical distribution of occurances of dangerous situations Slamming Greenseas Rolling Bending moment

8. Lloyd’s Register EMEA Acceptable frequency Bending moment : once a life time Slamming: once per year Green seas : once per life time

9. Lloyd’s Register EMEA Iterative process of design If the number of incidents proves to be too high : 2 possible actions: Restrict the allowable weather conditions And/or Increase strength Optimum solution

10. Lloyd’s Register EMEA Relative vertical motion of point : fore, keel exceeding draft fore: number of exceedings per trajectory as a function of significant wave height in measured directional wave spectra Bol van Heist, Western Scheldt – Zeebrugge

11. Lloyd’s Register EMEA Significant Wave Height Is a far more accurate criterion for reflecting the risks compared to the old yardstick : Beaufort Number As basis for designing ships But also as a criterium for the captain: whether to make the voyage or the wait for better circumstances

12. Lloyd’s Register EMEA Further possible improvements Accuracy of predictions on medium term Directional predictions Distinction between: Swell –Caused by remote storms –Long waves, traveling at known speed –well predictable Local waves –Same predictability like the local wind –Shortcrested waves

13. Lloyd’s Register EMEA