When planning for the new World Trade Center site began just a few years after the destruction of the original towers, security was front of mind: Bollards were to be placed around the site, and a dedicated, below-grade routing system for commercial vehicles was among the plans.

Connecticut Dept. of Transportation seeks to better coordinate the $5-billion project with other area transportation needs.

Orange County, Calif., is studying the feasibility of converting several existing freeway carpool lanes into tolled express lanes to help alleviate increasing congestion.

Removal of 5.5 miles of roadbed will clear a broad path for water to flow into the Everglades.