... end linking the exchange line (siding 1) to both the Northern SR line and the Southern GWR line (that'll confuse 'em in Swindon and York!) I tried a variety of turnout profiles but have ended up with a little bit of curved track between the two. Hi Richard, That bit of curved track contained a reverse curve which didn't align very well. In re-aligning it, I have ended up working over most of your plan. It is obviously entirely up to you whether to take any notice. 2_201515_050000000.png You didn't post the BGS file, so I obtained the map myself from NLS. I used the georeferenced version, and I think you probably used the original OS sheet version (Find By Place), because there was a difference in the map projection and I need to rotate the whole thing a fraction to align with the georeferenced map. Generally it is better to use the georeferenced version if possible, because Templot can be more accurate in scaling it to the world coordinates than to the old OS County Series mapping: ...