Ship behavior during encounters in ports and waterways based on AIS data: From theoretical definitions to empirical findings

Currently, the research on ship behavior during encounters focuses on evasive behavior during specific situations with existing risks of collision. However, the preliminary selection of encounters to refine the presented ship behavior is biased. To obtain a full understanding of all ship behavior during different encounters in ports and...

Feasibility Study of Implementing a Central Suction-WID System in a Tide-Dominated Channel

The feasibility of installing a suction system, which consists of a pump and pipeline for transporting sediment from the sediment trap to the reallocation site to complement the water injection dredging (WID) method is accessed in this thesis. The combination of a suction system and a water injection dredger is called central suction-WID system....

Impacts of wind and current on ship behavior in ports and waterways: A quantitative analysis based on AIS data

In ports and waterways, the impacts of external navigational factors may lead to serious incidents due to limited space for ship maneuvering. Using nautical traffic models, these incidents can be predicted in advance. In current studies of nautical traffic models, the impacts of wind and current on ship behavior are seldom considered when...

Comparison of Paradigms in Nautical Traffic Models

The increase of ship traffic flow, densities, ship size, and the uncertainty from technological advancement raise issues in traffic safety and efficiency. In order to tackle the issue, currently, a simulation model is widely used by various users as the port authority and bridge team and for research and development team. Since the issues are...

Ship classification based on ship behavior clustering from AIS data

Since the introduction of the Automatic Identification System (AIS), AIS data has proven to be a valuable source of ship behavior analysis using data mining. It records ship position, speed and other behavior attributes at specific time intervals in all voyages at sea and in ports. However, the current studies in ship behavior analyze the...

Influence of external conditions and vessel encounters on vessel behavior in ports and waterways using Automatic Identification System data

The impact of many external factors, such as wind, visibility and current, on the behavior of vessels in ports and waterways has not been investigated systematically in existing maritime traffic models. In order to fill the current knowledge gap and provide a basis for developing a new model to effectively simulate maritime traffic, the...

Feasibility study of port project Clifton Point, New Providence, Bahamas

The current port of the city of Nassau, the capital of the Bahamas, encounters a capacity problem for the current port. A previous study for the Bahamian Government concluded that the area of Clifton Point is most suitable for relocating the main part of the port structure. This report will focus on the feasibility of the appointed project site....