Not sure if anyone else has experienced it, but was driving Westbound on this today. Being a new tunnel with speed cameras I thought it prudent to put the Cruise Control on (not Auto-Pilot).
Twice it emergency braked thinking there was a pedestrian walking across the road. The only thing I can think of is both occasions it was near the Suburb names on the wall where the vertical neons are.
I am talking hard braking with loud beeping, if the guy behind had been closer he would have went straight up my backside. It briefly flashed up a human avatar on the display outlined in red.
Could the LED 80 speed limit signs every 50M be triggering it?