What would you expect on approach if the yellow lights are illuminated?

When yellow lights are illuminated on approach, it typically signifies that the runway is of short length. This warning serves to alert pilots that they need to adjust their landing techniques and expectations due to the shorter runway available for landing. It is crucial for pilots to be aware of this condition as it affects their flight operations, including approach speed and landing distance.

In contrast, closed runways and runways under construction would usually indicate different signals or lights, such as red lights or other specific markers that denote hazards or obstructions. A runway with a normal length would not have illuminated yellow lights, as that is not a condition requiring special attention. Understanding these signals helps ensure safe landings and operations in varying runway conditions.