... I forgotten a lot of what I had learnt. In short, I've got stuck and rather fed up. I'm trying to draw a single slip. However, I can get the roads drawn properly to get to the crossover part. I always end up with the crossover on a transition curve, and then Templot throws up warnings. The video on making the slip part seems fairly easy to follow, but I need to get past the crossover bit to get there. I'd be grateful for any advice! Boxfile attached. 3033_231643_340000000.jpg Attachment: attach_2260_2871_MillersDale091015 Valhoj2.box 230 posted: 23 Apr 2016 22:12 from: Martin Wynne Hi Richard, There's a video on how to create a diamond-crossing on transition curves at help> watch a video> Scruff Video Andrew transition diamond menu item. If that doesn't work on your system, it is also available (in poorer image quality) at: http://flashbackconnect.com/Movie.aspx?id=ib65pLfUkgNxFBDqAZSNyA2 When you have the diamond-crossing, adding slip roads is the same as for regular diamonds. ...