I couldn't find a four lane blueprint with modern tracks or elevated rail intersections, but for those looking, here's something you can work on. It's adapted for a base-wide robot network, and each segment comes with roboports, assuming you're in late game and using ports to this scale.
It is also capable of adapting to a a bilane rail system, with a couple of different adapters for a t intersection and a simple 4-2 merge section. This track is designed for 5-segment trains, be that 1-4-0, 2-1-2, 3-1-1, or whatever.