IBM has released its annual "Commuter Pain Index," which ranks traffic congestion in 20 metropolitan areas around the world. According to IBM, the Commuter Pain Index includes 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 Least Congested Metropolitan Areas: Four metropolitan areas scored under 20, achieving the most favorable traffic congestion ratings. New York scores 19, with its somewhat lower density (the New York urban density is less than that of San Jose). Even lower density Melbourne and Houston score 17, tying for the second best traffic conditions. Stockholm achieves the best traffic congestion score, at 15, despite its comparatively high density. Stockholm is probably aided by its modest size which is similar to that of Orlando (Florida).