One thing that has been missing from TSW is the distinct sounds you get whilst going through tunnels. Playing both SEHS and BKL with its long tunnels, it just feels and sounds completely dead, and no different to driving outside of a tunnel. The sounds themselves do not get louder at all, there’s just a very faint echo. This was a massive criticism of the Bakerloo line, as it is far too quiet in TSW compared to real life. In real life the sound will reverb (echo) and get significantly louder as the sound has nowhere to go, as it bounces off the tunnel walls. I’m not expert but how hard is it to add a marker or something to make it ‘trigger’ sounds fo react appropriately inside a tunnel? I’m sure TS1 did this to an extent? Secondly, there is barely any track noise, apart from going over junctions. Continuous welded track may not have any joints, but it still produces noise as the steel wheels come into contact with the steel rails. This can be described as ‘running’ or ‘rumble’ noise. If you watch this video from start to end, you’ll notice how much noise there is, particularly when going through tunnels, and especially the rail joints and echos within the tunnel. This is with a train with sealed windows, too.