When a city design gets it right it becomes a generator of well-being. It can be just a great place to live. It can have just the right position. It can be a mix of old and new. The people who live there and work there will thrive.
If that city design gets it superbly right, visitors will flock to share that sense of place and atmosphere. Then the street turns into a generator of wealth and income. Yet because of the weight of visitors, it becomes a disagreeable place to live.
