Radar and ARPA (Automatic Radar Plotting Aids) systems are integral for enhancing situational awareness on vessels. These systems use radar data to automatically track and predict the movements of other vessels, providing operators with early warnings of potential collision risks. By offering real-time, automatic tracking, the radar and ARPA systems significantly reduce the risk of accidents, especially in congested maritime traffic. These systems also provide additional features such as maneuver suggestions, based on the calculated positions of surrounding vessels. Regular calibration and updates ensure the system operates accurately, and maintenance is essential for long-term reliability, particularly in challenging weather conditions or busy navigational areas.