Why can fewer nighttime flights still leave a runway vulnerable?

Answer: Fewer staff cover more jobs

Fewer staff cover more jobs ✓ — Correct! Light traffic often comes with thinner staffing and merged duties. That can work smoothly when nothing unusual happens, but it leaves less spare attention when a runway crossing, landing aircraft, and emergency response all overlap. Night operations can look calm while actually having less buffer for surprises.

Jets land much faster — Wrong. Airliners do not normally land much faster simply because it is nighttime. The more important change is organizational: fewer people may be handling more roles, so one disruption can spread faster through the system.

Runways get narrower — Wrong. Runways do not physically shrink after dark. What shrinks is the margin in the human system: fewer staffed positions, more combined duties, and sometimes more fatigue or attention strain during an abnormal event.