What do pilots rely on for a visual cue when exiting the runway?

Pilots rely on taxiway lead-on lights as a visual cue when exiting the runway because these lights serve a crucial role in guiding aircraft safely from the runway to the taxiway. Taxiway lead-on lights are typically positioned at the intersection of the runway and taxiway and provide clear visual guidance. They help pilots identify the correct path to follow, ensuring that they can navigate safely off the runway after landing. This is particularly important for maintaining safe operations at busy airports like O'Hare, where there is a constant flow of air traffic.

The other options serve different purposes. Touchdown zone lights indicate where an aircraft should aim when landing but do not assist in exiting the runway. Runway centerline lights help with alignment during approach and landing but are not intended for guiding pilots once they have landed. Land and Hold Short Lights are used to indicate whether an aircraft is cleared to land or hold short of a specific point, which is more relevant to during the landing phase rather than the exit from the runway.