... on O.S. maps without corroborative evidence is likely to be misleading. I`m also told that the track layout at Andermatt station in Switzerland is a state secret. This is for military reasons. As the whole station can be seen panoramically when on the ramp leading from Andermatt towards Disentis or from the public road, this does seemn to be a bit non-sensical. Bernard posted: 13 Dec 2018 22:16 from: Andrew Smith Hi Bernard. Comparison of the mixed gauge trackwork on the 1878 town plan for Penzance with photographs suggests that the map makers were actually pretty accurate. On that basis I am prepared to accept that the Aberdare plan also reflects the actual running lines. The problem lies in the compromises on the part of the draughtsman in reproducing curves and consequent effect on crossings etc. Andrew Parts of Templot Club may not function unless you enable JavaScript (also called Active Scripting) in your browser. Templot Club> Forums> Trackbuilding topics> Problem interpreting mixed gauge track plan about Templot Club Templot Companion- User Guide- A ...