The traffic maze

This is a fwd picture I got. Franfurt's railway network, with, as you'd guess, very precisely scheduled and safe rails. I read an article sometime back commenting on India's population and chances of a HUGE number of people taking flights if the prices fall. The doomsayers were speaking about the infrastructural hassles and the traffic problems that might occur. It sounded scary to think about, say 50 years later, a 100 million people taking to air. But the picture gives a feeble hope that traffic of any amount can be handled. It's just that we need to get it right, which is not so easy considering our track record.