Description: Allision refers to the act of a vessel striking a stationary object, such as a dock, an anchored boat, or any fixed structure in the water. This phenomenon can occur due to various reasons, such as navigation errors, adverse weather conditions, or failures in the vessel’s control system. Allision is an event that can have significant consequences, both for the vessel involved and for the impacted object. In terms of maritime safety, allision is a risk that must be carefully managed, as it can result in material damage, injuries to the crew, or even loss of life. The main characteristics of allision include the speed of the vessel at the moment of impact, the size and resistance of the stationary object, as well as the sea conditions. Preventing allision involves a combination of proper crew training, the use of advanced navigation technology, and the implementation of safety protocols in ports and anchorage areas. In summary, allision is a technical term that encapsulates a significant risk in navigation, underscoring the importance of caution and preparedness in the maritime environment.