IBM surveyed 8,192 motorists in 20 cities on six continents, the majority of whom say that traffic has gotten worse in the past three years. The congestion in many of today's developing cities is a relatively recent phenomenon, having paralleled the rapid economic growth of those cities during the past decade or two. By contrast, the traffic in places like New York, Los Angeles or London has developed gradually over many decades, giving officials more time and resources to address the problem. The index is comprised of 10 issues: 1) commuting time, 2) time stuck in traffic, agreement that: 3) price of gas is already too high, 4) traffic has gotten worse, 5) start-stop traffic is a problem, 6) driving causes stress, 7) driving causes anger, 8) traffic affects work, 9) traffic so bad driving stopped, and 10) decided not to make trip due to traffic. The cities scored as follows: Beijing: 99, Mexico City: 99, Johannesburg: 97, Moscow: 84, New Delhi: 81, Sao Paolo: 75, Milan: 52, Buenos Aires: 50, Madrid: 48, London: 36, Paris: 36, Toronto: 32, Amsterdam: 25, Los Angeles: 25, Berlin: 24, Montreal: 23, New York: 19, Houston: 17, Melbourne: 17, Stockholm: 15. Velo Mondial has not been able to analyse IBM's interest in the issue, but we will come back to you on this one. Read more here.