Displaced Threshold Lighting...
At night, you shouldn't see anything diferent about runway lighting for a displaced threshold.
A displaced threshold means that the start of that part of the runway available for landing is inset or 'displaced' from the beginning of the total surface available. This can be for a variety of reasons, perhaps because the beginning part isn't maintained but more usually because the final part of the approach is obstructed by buildings or electricity pylons etc.
The threshold will be marked by a row of green lights at 90 deg to the direction of travel i.e. across the runway. The white side lights will start at this point. The end of the Landing Distance Available will be marked by a row of red lights across the runway. It may well be that there are side lights before the threshold if it is displaced; these are for the benefit of pilots using the full length for departure and should be coloured red. Lighting provided for glideslope guidance, such as Precision Approach Path Indicators (PAPI) should give guidance to the aiming point of the displaced runway, not the full length. This describes the lighting for a basic 'visual' runway.
Any other runway lighting, in place if it is a precision instrument runway, such as centreline, touchdown zone or stop-end cautionary zone lights, will look the same whether the threshold is displaced or not.
hope this helps - ask again if not
Cheers,
The Odd One
Chilli Monster
Sorry, trod on your reply!!! (if you see what I mean)
Cheers,
TheOddOne