Lap Detector Location?

My team was wondering where the lap detector would be placed on the field. We are trying to figure out where to put our holder and it would help us greatly if we knew the exact locations. Browsing through the instruction manual only told us that it was on (or around?) the overpass. Is there somewhere that specifies all the locations?

I saw pictures somewhere, I can’t remember the exact reference. The lap detectors are placed on the underside of the overpass bar, oriented down. As your robot goes across the line, the lap is counted.

Heres the picture of the lap detector.

Thanks, that’s exactly what we needed to know!