ANSWER:
A collision could occur when the distance decreases and bearing between two vessels aren't changing.
Step-by-step explanation:
To keep away from impacts, the administrators should ace the Rules of the Road. The administrators ought to have the capacity to decide whether his watercraft is a Stand-On Vessel (keeps up course and speed) or the give-way vessel (the "troubled" vessel which offers a path to the remain on vessels) and move likewise.