IBM released its 4th annual Global Commuter Pain survey yesterday. The study surveyed 8,042 commuters in 20 cities worldwide, regarding commuting habits, ranking the emotional and economic toll of commuting in each of the cities, with higher scores indicating worse conditions.

It found that drivers throughout the world reported more stress and frustration with their commute compared to last year. Commuters in many places are opting for public transport instead of driving and 41% of those surveyed said stress levels would decrease with improvement in public transport options. If traffic congestion did not consume so much time, 56% of respondents said they would spend more time with family and friends, 48% would exercise more and 29% would sleep more.

The index suggests a big disparity in the pain of the daily commute, with Mexico City at a score of 108, outstripping all other cities surveyed and Montreal at 21, reporting the lowest pain level.

Australian cities are not surveyed, otherwise Sydney and Melbourne would probably feature quite high on the list.

City Commuter Pain Index
Mexico City 108
Shenzhen 95
Beijing 95
Nairobi 88
Johannesburg 83
Bangalore 75
New Delhi 72
Moscow 65
Milan 53
Singapore 44
Buenos Aires 42
Los Angeles 34
Paris 31
Madrid 28
New York 28
Toronto 27
Stockholm 26
Chicago 25
London 23
Montreal 21