It's interesting that the chart
shows an admittedly short-term condition with driving down and GDP up. Are the GDP numbers being manipulated?
Also this chart
how much of that is "warehouse on wheels" effect now?
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Warehouse on wheels (link)[/url]
Washington Monthly
Virginia highway officials designed Interstate 81--it's the main highway through the Shenandoah Valley--to accommodate traffic that is 15 percent trucks. Trucks are now 40 percent of the traffic, reports USA Today's Fred Bayles, who adds that "over the past two decades, the number of long-haul trucks has doubled" and "is expected to double again" by 2020...