2 ms·
Runway Status Lights (RWSL) are close to what you're describing. If surface surveillance radar detects that a runway is occupied, it turns on red warning lights
by tjohns 3y ago
Runway Status Lights (RWSL) are close to what you're describing. If surface surveillance radar detects that a runway is occupied, it turns on red warning lights at the runway approach end and at the hold-short bars.
The nice thing is that the entire system is ground-based, no additional equipment needed in the aircraft.
However, it's complicated/expensive, so only a handful of airports have it installed.
https://en.wikipedia.org/wiki/Runway_status_lights https://en.wikipedia.org/wiki/Runway_status_lights
- YPPH 3y agoYou're right. Regrettably, I just read that Haneda is one of the handful that have it, but the system was broken. A great example of how an aircraft accident is almost always a result of multiple things going wrong. https://abcnews.go.com/International/japan-airlines-flight-crew-acknowledged-repeated-permission-land/story?id=106066266 https://abcnews.go.com/International/japan-airlines-flight-c...