Can cities be controlled so that community can be created as a livable urban space?

The physical composition of the city is also a message, a discourse. What is being said to the recipient? What messages impact on the individual as he or she travels around the city? Consider the symbolic poverty of certain areas and the visible richness of others. Thus zones are not indicators of disorganisation and organisation, but are significations of poverty and power, versus wealth and powerlessness, or differential consumption power. The latest model BMW or Jaguar, versus the rusting 10 year old Toyota.