Cities contain the majority of the worlds population and moving that many people is a challenge, to say the least. Each city has its own design and plan for public transportation and some are clearly better than others. Wendover Productions tackles this question and provides some nice insights into what makes a city a good place for public transit. The video ends with a nice snapshot of the kinds of success that public transit can bring to cities. One example is that Portland has seen an estimated 5 billion dollars in development thanks to their streetcar network.