Purpose

• Reduce frequency and severity of runway incursions

• Prevent runway accidents 

RWSL increases situational awareness 

• RELs provide a direct indication to pilots when it is unsafe to cross or enter a runway

• THLs provide a direct indication to pilots when it is unsafe to depart from a runway

RWSL RELs and THLs

• Runway Status Lights integrates airport lighting equipment with approach and surface surveillance systems to provide a visual signal to pilots indicating that it is unsafe to enter/cross or begin takeoff on runway.