The approach lighting system must be aligned in a straight line along the preferred approach direction, ensuring that the pilot can follow a well-defined path toward the landing or take-off area. When the visibility of the approach path is reduced due to surrounding lights or other visual interferences, the use of sequenced flashing lights (SFL) provides an effective solution. These lights enhance the visibility of the path even in low-light conditions, significantly improving safety during night operations or in complex environments.
