This tutorial will show you how to make exact straight and curved road sections in SCARM in order to create perfectly aligned road networks for your layouts. [>>>] 
Read this in order to see how to make a circle / 3D cylinder in the layout within current release of SCARM. [>>>] 
This tutorial will give you some ideas about how to work with the road pieces in SCARM in order to make various custom intersections and junctions. [>>>] 
Read this if you want to create custom tunnel portals or to make double tunnel portals in your SCARM track plans. [>>>] 
Read this tutorial to see how to create custom level crossing with barriers for your track plan, using the figures in SCARM. [>>>] 
Read this QuickTip if you want to use custom made tracks or cutouts of the standard track pieces in your layout plan. [>>>]