Every time I use motorways I get frustrated. I can understand that traffic jams occur when there's accidents, but what I don't understand is why there's consistently congestion where traffic joins motorways. Surely there should be a way to use motorways so that there's never congestion when joining them. This feels like either an economics or a physics problem.

There must be a way to behave around junctions that ensures traffic can flow freely up to a point. Things like keeping the left lane clear at junctions, merging slowly. I need a YouTuber to figure this out for me. Going to email Tom Scott.