SEA developed an innovative solution to actually remove automotive congestion and pollution from cities. This is cheap and intended for public-domain use in order to help the global environment.
May I invite you to read aida-sea.fr/urban-transport/ describing the ongoing development by SEA of a light, cheap automatic urban transport system able to actually remove automotive (private +delivery) with capacities much higher than that of existing modes, public transport and automotive. The design goal is to provide a sustainable and much superior, very flexible solution to the urbanist to remove pollution and congestion.
I would be honoured to read your comments, in any direction you might feel useful to improve the concept and prototypes under construction on our own funds.