4way Bus / Metro Hub
One of my Bus main stations to interconnect city quarters. (no traffic lights)
At the same time it offers a high way styled roundabout (to prevent pedestrians crossing the street on ground level)
It offers plenty space for stores or small parks to beautify it.
As the city grows you can place a subway station in the centre to fit your growing transportation needs.
Built for moderate traffic. If you happen to have much traffic I recommend to change the middle roundabout into a one way that goes opposite direction compared to the outer roundabout, to prevent too much traffic on the bus lanes.
Have fun with it. ?
The round centre park from picture 3: