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News Link • Transportation

CHARTS: The Great Decline Of American Driving

•, Doug Short
 The Department of Transportation's Federal Highway Commission has released the latest report on Traffic Volume Trends, data through September. Travel on all roads and streets changed by -1.5% (-3.6 billion vehicle miles) for September 2012 as compared with September 2011. The 12-month moving average of miles driven increased a tiny 0.27% from September a year ago (PDF report). And the civilian population-adjusted data (age 16-and-over) has set a new post-financial crisis low.

Here is a chart that illustrates this data series from its inception in 1970. I'm plotting the "Moving 12-Month Total on ALL Roads," as the DOT terms it. See Figure 1 in the PDF report, which charts the data from 1987. My start date is 1971 because I'm incorporating all the available data from the DOT spreadsheets.

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