A number of models are available to make a taxiway in either bitumen or concrete finish. They include fixed track switches (junctions) 90 degree and 60 degree turnouts, T sections, splines and 90 degree curved sections. Currently the fixed turnout models are broken in TS12, this has been reported to Auran as a bug to be fixed.
The bitumen models are 24 metres wide and the concrete version is 18 metres wide, for smaller aircraft. The splines will join the sections or the runway or terminal models.
Clicking on the turnouts or runway models will display an HTML help file in Surveyor, on how to use the models effectively.