... have smoothed out the curves with some transitions to show the effect. It meant moving the platform roads a bit further north. I also changed the crossover back to 1:8 -- it could go a bit longer to 1:9 or so, to ease the inside radius on the yard turnout. The turnouts are in the transition zone, but I won't tell anyone. I also moved the catch points back as far as they would go so that a derailed vehicle is clear of traffic using the crossover road. 2_181448_250000000.png .box file attached. cheers, Martin. Attachment: attach_2576_3127_michael_transitio ns_215d.box 208 posted: 18 Nov 2017 20:25 from: Michael Henfrey Wow! Yeah that looks way better, Thanks very much I see what you mean about maybe making it a 1.9 as that turnout is probably on the limit of being abit of a tight radius at 33.5" Not sure what the limits are for 4-SF but it's in the green so at least I have some options there I think I will print it off tomorrow and lay it ...