Where Speed Cameras in Sydny Harbour tunnel?

[steventh]

Hi Folks,

I travel to work everyday through the tunnel and slow right down - except today (*@&$) when I followed a car into the tunnel. I was near the limit and who knows, as I actually watch the road most of the time while Im riding (rather than the speedo) I may have gone over.

Does anyone know where the spped cameras are located in the north bound tunnel?

Cheers

Steven