Currently more than 15 turnouts are operated by this system. For more
details check the JMRI
page
The Tracks are a very important part of the Railway, I use Horby and Peco (my preferred) Cod.100.
Tracks in Cod.100 ensures more compatibility (no derailment) also with older Loco and Wagons. Alternative is cod. 83 that is more realistic. Nice videos about differences are here (ita) or here (eng)
After I got a bit experienced, I started to use Flexible Tracks (like Peco SL-100); Flexible track allows you to create more realistic curves and tracks but are more difficult to use. In YouTube you can find a lot of video, like this one, that explains how to cut or curve flexible tracks.
Remember to always use a consistent Track Geometry avoiding curves with radius smaller than R3 for High Speed sections.
Check here the Hornby Geometry.