You forgot to include Metro Manila!
The index measures ten 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. --- All of which we experience when driving around here!