What might lead to lost instrument approaches at an airport?

The reason that incompatible land use can lead to lost instrument approaches at an airport is rooted in the requirements for safe and effective approach procedures. Instrument approaches rely on specific physical and environmental criteria, including clear airspace, obstacle clearance, and the absence of disruptions in navigable paths. If land development occurs near the airport that includes structures such as high buildings, radio towers, or other obstructions, it can interfere with the instrument approach paths. Furthermore, such land use may encroach on airspace critical for descent angles and visibility during approaches, which could necessitate the suspension of certain instrument approaches to ensure safety. Therefore, maintaining compatible land use surrounding an airport is crucial for preserving the integrity of navigation systems and ensuring continued access to instrument approaches, making it a significant factor affecting their viability.