Visibility Determination is the process of assessing how clearly objects can be seen from a specific location. This assessment is crucial in various fields, such as aviation, maritime navigation, and urban planning, where understanding sightlines can impact safety and functionality. Factors influencing visibility include weather conditions, terrain, and obstructions like buildings or trees. In aviation, for example, visibility determination helps pilots make informed decisions during takeoff and landing. Similarly, in maritime navigation, it ensures that ships can safely navigate through fog or storms. Accurate visibility assessments are essential for effective communication and operational planning in these industries.