New data available from the American Road & Transportation Builders Association (ARTBA) highlights the importance of transportation spending to US economic growth. This information can be sourced through a new Internet resource set up by ARTBA. The data has been revealed at a time when the multi-year highway/transit authorisation bill is still being discussed in the US Congress. The US secretary of Transportation, Ray LaHood, said at the CONEXPO-CON/AGG 2011 that he hopes a six year authorisation bill will
