Source: Matt McFarland, CNN Money

There may be a solution to asthma perched high above a handful of Chicago intersections.

Last week, the city began installing sophisticated computers on traffic poles to track air quality, weather and road data at a block-by-block level.

The project's leaders liken the project to giving an entire city its own Fitbit (FIT), which should help it better track and address everything from public health risks to congestion on roads.