... then got a smooth line across the slip at 1:7 regular, without dog-legs. It does push the B-7 turnout further left, but there is room to build the switch into the V-crossing of the loop turnout if that can't be moved. Here's a screenshot. The .box file is attached. Add file... over your existing plan and see what you think (it's not finished, no slip road yet or timber shoving, and the tandem needs some re-work): slattocks_junc_mod_a.png slattocks_junc_mod_b.png I'll get on with the irregular diamond for the double-junction (a typical location for an irregular diamond). regards, Martin. Attachment: attach_579_877_slattocks_junction _mods_a.box 374 posted: 25 Jun 2009 10:44 from: Andy G Martin, Thanks for this, I'll have a look at it. No need to do the irregular crossing as Dick is going to draw it out and build it, so I'm leaving him to it. Cheers Andy posted: 25 Jun 2009 14:51 from: Martin Wynne Andy G ...