... in one direction only I referred to a potential problem that this might create with our proposal to introduce more authentic working of the exchange sidings and dock branch. It's only fair that I explain what this is (giving Rodney or anyone else) the opportunity to see whether workable solutions exist for his proposal that would accommodate our traffic needs. First of all I'm posting a sketch of the scenic section so the full layout can be envisaged. I'll follow on with an explanation of the dock traffic later. Regards, Richard Attachment: attach_135_236_Mostynplan1.jpg 2821 posted: 17 Nov 2007 19:55 from: Martin Wynne Richard Oldfield wrote: Does anyone know of a P4 layout with reasonable gradients?- the most we can manage is a drop and rise of 3mm over about a metre of the dock branch. Hi Richard, I don't understand -- that's only about 1:300? Surely you can do better than that? On Adavoyle Junction the main line gradients are 1:100 on easy curves and the Monaghan Branch gradient is 1:60 and sharply curved ...