Design of a waterborne construction logistics system for quay wall renovations in Amsterdam

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Abstract

In the upcoming years the Municipality of Amsterdam has to cope with renovation works to approximately 200 kilometers of quay walls and 800 bridges. These projects need to be executed in the least burdensome manner, which is why executing parties are obliged to perform their construction logistics via waterways instead of the road. Stakeholders want to have more insight into the consequences of using waterborne construction logistics and what the possible choices and decisions are within the system. In this research a waterborne construction logistics system is presented from which waterborne scenarios can both be compared with each other and with the conventional road modality. A decision support tool is developed and used to quantify these consequences and it can be concluded that water is always the preferred alternative when looking at movements and vessel/vehicle kilometers through the city, which is for both indicators a decrease of approximately 80%. From this analysis can be concluded that in the most optimistic scenario it is possible for waterborne logistics to become less expensive than road transport, but under the conditions that the average transported load and vessel speed are rather high. It is therefore recommended to further investigate the optimum between vessel capacity, loading rate and vessel speed and for the Municipality of Amsterdam to involve executing stakeholders to contribute to reaching this optimum.