Passage planning or voyage planning is a procedure to develop a complete description of a vessel's voyage from start to finish. The plan includes leaving the dock and harbor area, the en route portion of a voyage, approaching the destination, and mooring, the industry term for this is 'berth to berth'.[1] According to international law, a vessel's captain is legally responsible for passage planning,[2] The duty of passage planning is usually delegated to the ship's navigation officer, typically the second officer on merchant ships.[3]
A Passage Plan is an important step in ensuring vital navigation information is readily available, crew and those ashore know what to expect, and to minimize the likelihood of accidents.[4] Passage planning is important for the safety of a vessel as it requires the correct assessment and establishment of safety settings, including adequate under keel clearance in regards to navigational risks.[1]
Studies show that human error is a factor in 80 percent of navigational accidents and that in many cases the human making the error had access to information that could have prevented the accident.[3] The practice of voyage planning has evolved from penciling lines on nautical charts to a process of risk management.[3]