alt Hacker NewsFrom the FAA’s site [1] on RWSL:
> If an Air Traffic Control clearance is in conflict with the Runway Entrance Lights, do not cross over the red lights. Contact Air Traffic Control and advise that you are stopped due to red lights. (ex.: "Orlando Ground, Ops 2 is holding short of runway 36 Left at Echo due to red lights").
Airports are highly controlled environments unlike typical motor vehicle roadways and generally the same rules apply for aircraft, vehicles, and equipment on airport surface movement areas. From all sources I can find, if the RWSLs were working they should have been red and nobody should have entered the runway without further clarification from ATC.