Soon after the Gatwick incidents the parallel taxiway lighting was adjusted so it doesn't show towards the direction of approach when the northern runway is in use. So when runway 08R/26L is closed for maintenance and runway lights are switched off. runway 08L/26R runway lights only can be seen. The parallel taxiway lights are visible only after
vacating 08L/26R, Also there is a radar based approach monitoring aid which provides ATC with an audible warning from a few miles out should an arriving aircraft be lined up on
the wrong runway.