Dive summary:

• The American Road and Transportation Builders Association reports that spending rail, airports, transit and water transportation came at the expense of highway paving for the first four months of the year.
• Paving work fell to $8.4 billion from $8.9 billion for the four month period in 2012, and ARTBA said that continued a series of declines that began in 2009.
• In the other sectors, however, subway and light rail work was up 22.6%, railroad rose 11%, airport terminal and runway construction grew 22% and dock, pier and port construction went up 23%.

From the article:

"This is largely a result of the pull back in state and local spending, the significant drop-off in federal investment in transportation improvements due to the completion of the 2009 stimulus law, and status-quo federal investment levels under MAP-21." ...