The City of London, also known as the "Square Mile", is the financial district of London. Some 678,000 people work in the area, nearly 9,000 people live in it, and millions visit it each year. So it's an intensely used square mile (~1.12 square miles or ~2.9 square kilometers). Given this intensity, it would be reasonable to wonder how most people get around within it. Do you think that it would be reasonable, or even possible, for all 678,000 people to drive their own car to work and not exp...