If you watch television here in the United States, chances are you’ve seen the IBM ad about creating “smarter traffic systems.” IBM worked with the City of Stockholm to implement smart toll systems to reduce gridlock, lower emissions and save the city’s residents time and money. It’s a great reminder that much of the technology we need to build a cleaner, more efficient tomorrow already exists and, in some forward-thinking cities, is being implemented with success today.
The Stockholm Trial reduced traffic by 25%, and the city saw a drop in emissions from road traffic of up to 14%. Greenhouse gases have fallen 40% in the inner-city. For more info, IBM has a more complete summary of results.

