The council operate the street parking, the revenue generated is diverted to public transport, subsidising the private companies who operate the franchise. By using some of that revenue they could operate a free of charge fully automated city centre service, as I described, allowing the...
Underground trains, monorail and tram systems all require massive infrastructure to operate, so would be prohibitively expensive to introduce.
Electric automated shuttle buses, operating on regular routes throughout the city centre would require zero new infrastructure and are already in public...