If only we had invented and built some sort of alternative mode of collective transportation. Maybe it could be in tunnels and ride on metallic rails. It would serve many people and make periodic stops to the same locations instead of the highway clusterf- we have today. Sad that we don’t, but a man can dream though. A man can dream.
Why express busses need separate lines? A bus at a bus stop should not block the lane. Unless you expect to have really many busses, you could just have a separate naming convention for the express ones
So that express busses can pass slow busses at full speed.