You can optimize the east and west going exiting rail signals by replacing the chain signals with them, otherwise it should run good. Afternote, i think it's not vertically symmetric. Try placing the blueprint over itself after rotating it 180 degrees. Ye I know, I posted it on reddit, and someone ...

4 Way 2 Lane Unbuffered intersection. It uses LHD on the vertical axis and RHD on the horizontal axis I know, it's cursed It should have a pretty decent throughput tho. https://i.redd.it/n36c9hxublb91.png Blueprint: 0eNqtmm9PGzEMxr9LXpfp8sdx0q8yoYnBaZwEB2rLNIT63dfScqPgI/bTSbwpcL86jh37nvjF/bx76h9Xw7h...