Here’s the press release associated with the graphic:
Source: http://www.dot.gov/affairs/dot8408.htm

DOT 84-08
Wednesday, June 18, 2008
Contact: Doug Hecox
Tel.: (202) 366-0660

Americans Drove 1.4 Billion Fewer Highway Miles in April of 2008 than in April 2007 While Fuel Prices and Transit Ridership Are Both on the Rise
Sixth Month of Declining Vehicle Miles Traveled Signals Need to Find New Revenue Sources for Highway and Transit Programs, Transportation Secretary Mary E. Peters Says

WASHINGTON – At a time of record-high gas prices and a corresponding surge in transit ridership, Americans are driving less for the sixth month in a row, highlighting the need to find a more sustainable and effective way to fund highway construction and maintenance, said U.S. Transportation Secretary Mary E. Peters.

The Secretary said that Americans drove 1.4 billion fewer highway miles in April 2008 than at the same time a year earlier and 400 million miles less than in March of this year. She added that vehicle miles traveled (VMT) on all public roads for April 2008 fell 1.8 percent as compared with April 2007 travel. This marks a decline of nearly 20 billion miles traveled this year, and nearly 30 billion miles traveled since November.

“We’re burning less fuel as energy costs change driving patterns, steer people toward more fuel efficient vehicles and encourage more to use transit. Which is exactly why we need a more effective funding source than the gas tax,” Secretary Peters said.

The Secretary said as Americans drive less, the federal Highway Trust Fund receives less revenue from gasoline and diesel sales – 18.4 cents per gallon and 24.4 cents per gallon, respectively.

The Secretary noted that data show midsize SUV sales were down last month 38 percent over May of last year; car sales, which had accounted for less than half of the industry volume in 2007, rose to 57 percent in May. She said past trends have shown Americans will continue to drive despite high gas prices, but will drive more fuel efficient vehicles consuming less fuel. “History shows that we’re going to continue to see congested roads while gas tax revenues decline even further,” she said.

“As positive as any move toward greater fuel efficiency is, we need to make sure we have the kind of sustainable funding measures in place to support needed highway and transit improvements well into the future,” said Acting Federal Highway Administrator Jim Ray.

To review the FHWA’s “Traffic Volume Trends” reports, including that of April 2008, visit http://www.fhwa.dot.gov/ohim/tvtw/tvtpage.htm.

The great irony of this press release is that it calls for a way to continually expand funding of highways while people are finally using them less and public transportation more! While I can’t read minds, it does seem that the Department of Transportation believes that this downward trend in driving miles is temporary. They imagine that drivers will transition away from gas guzzlers and into fuel efficient vehicles, which will be sufficient to maintain future demand for high quality pavement.

What’s at stake America? I think Bruce explains it well in the 1978 hit “Racing in the Street”

Some guys they just give up living
And start dying little by little, piece by piece,
Some guys come home from work and wash up,
And go racin’ in the street

Might we have to do that racing in something other than a V8? Or will the big engine be a symbol of rebellion in the face of high prices. After all, when Springsteen coined his lines the economy was struggling from high oil prices. Why would we expect it to be any different this time…right?