>>799627Take off some of that road and add walk ways, bicycle ways, bus lanes, tram lanes etc. Make the now small roads one way so the city becomes a GPS labyrinth for cars that you put underground or staged parkings for at strategic points and in the edges of the town. It's absolutely possible and it was successfully done the last decades in Europe.
In socialism I don't see why we would have car centric cities but we could make a few of them for "fun" so people can know what it was to be stuck in traffic, deafened by noise, breathing hydrocarbons in the good old times. Like a capitalism theme park / museum.