With the Trixbrix Pass-Through Adapter you can connect 45 degrees crossings to R40 switches. It's a small curve with a custom radius. Using this adapter makes sure your layout stays within absolute geometry. Tracks will always have 8 studs in between this way.
The 8 stud distance allow trains to safely pass without collisions. It makes your layout look cool and properly organized. The 8 stud distance is also useful for switch levers, platforms, signals etc.
2 pieces of a custom "pass-through" adapter for R40 switches.
Create a single crossover spanning 3 parallel tracks.