Which type of approach is commonly associated with precision approaches?

The Instrument Landing System (ILS) is commonly associated with precision approaches because it provides both lateral and vertical guidance to pilots as they approach the runway. This system uses a combination of radio signals and, in some configurations, ground-based equipment to help ensure that aircraft can land safely even in low visibility conditions.

Precision approaches like the ILS allow for a more accurate descent path, which is crucial when weather conditions may impair visual reference during landing. ILS approaches typically have specific decision heights and minimum visibility requirements that enhance safety and reliability during landings. This level of precision is what distinguishes ILS from other types of approaches, such as non-precision approaches, which only offer lateral guidance and typically rely more on the pilots' visual navigation skills.

In summary, the reliance on both lateral and vertical guidance in the ILS is what makes it synonymous with precision approaches, ensuring that aircraft can more accurately navigate to the runway while maintaining safety, particularly in adverse weather conditions.