I finally improved my previous intersection, adding the last pair of direction/lane pair that was missing. It can probably be improved on, but at least it makes for a reasonable 4 lane 4 way intersection baseline. It fits exactly in 6x6 chunks Blueprint: RHT, Size: 192 x 192, Spacing: 4 tiles, Train...

I made a probably overkill 4 lane 4 way intersection. The blueprint includes exchangers as the right lane can't turn left (RHT). It is signaled for 2-4 trains, but there is enough room to signal it for bigger trains, though the exchangers would need to be extended. It was designed to be exactly 9 ch...