... . cheers, Martin. posted: 16 May 2020 19:37 from: Mike Kynaston Hi Martin, Please don't apologise. I appreciate the help you have given already- there was no expectation for you to pick up and run with this! Gratefully appreciate your help and advice. Mike posted: 17 May 2020 13:03 from: Martin Wynne Hi Mike, Here's a BOX file with my suggested design. I managed to get the slip to 1:9, which makes more sense for the switch-diamond: 2_170745_070000001.png It was a bit of a juggle to keep the 6ft way for the slip road, get the crossings in the same relative positions as the photos, and align it all to the old map. BOX and BGS3 files attached. Over to you to do the timber shoving. For the map, I captured it a higher zoom level than yours (level 19*, which is usually gives the best results), and I also used the function in Templot to reduce it to a low-contrast grey image while ...