September 23, 2010 2:20 PM, EDT

Chamber of Commerce Releases Transportation Performance Index

Group Notes Infrastructure Is Declining Over Time
Tannen Maury/Bloomberg News

WASHINGTON — The U.S. Chamber of Commerce released a new transportation index Thursday that showed a multiyear decline in U.S. infrastructure.

While the condition of the nation’s transportation system improved in 2008, multiyear trends showed a decline, the Chamber said in releasing its Transportation Performance Index.

The index rose slightly in 2008 to a reading of 51.24, from 50.74 the previous year, but the group said the index’s five-year moving average “shows a clear downward trend from 2003 to 2008 . . . reveal(ing) that the performance of the U.S. Transportation system is not keeping pace with the demands on that system.”

The index factors in transportation supply, reliability, safety and utilization for all modes of transportation, the business group said.