Make sure to have enough signals at the straight rails for the best throughput.
RHD, Size: 442x442, Spacing: 6 tiles, Train length: 6 cars
Set1: 132, Set2: 132, Set3: 135
Designed by Hovedgade
The core of this intersections was just ripped out of a 8 lane design and then fitted into being a 2 lane intersection.
ichaleynbin did give a good explanation of why this intersection can be so fast.