Study finds the value of time lost by American pedestrians totals $25 billion annually

The Pedestrian Pain Index (PPI) measures the time that American pedestrians waste waiting for the traffic light to turn green.

Credit: Billie Grace Ward, Flickr

The Pedestrian Pain Index (PPI) measures the time that American pedestrians waste waiting for traffic lights to turn green. Every day, tens of millions of Americans waste tens of thousands of hours stuck waiting on the side of streets for car traffic to get out of their way. Estimations say that the annual value of time lost waiting to walk totals $25 billion annually. Following the techniques developed over the past thirty years by the highway-oriented Texas Transportation Institute (TTI), the so-called Pedestrian Pain Index (PPI) calculates the amount of time pedestrians lose each year having to wait their turn to cross streets to allow cars to proceed.

 

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