https://en.wikipedia.org/wiki/Avenida_9_de_Julio
This is how wide streets & avenues can really help to efficiently allow people to get around.
https://buenosaires.gob.ar/movilidad/metrobus/metrobus-9-de-julio
Of course point to point teleportation or wormhole technology could really get things moving.
How Physicists Created a Holographic Wormhole in a Quantum Computer https://www.youtube.com/watch?v=uOJCS1W1uzg