David Johnson wrote: > "C. Dewick" wrote: > > > Actually, Mortdale yard (the new signalling) has J/S track circuits I think, > > That would explain the 2 Hz clunking from the trackside boxes. > > -- > David Johnson > trainman@ozemail.com.au > http://www.ozemail.com.au/~trainman/ that's the easiest way of identifying Juemont tracks