Border crossing improvements, induced travel, and security
Commercial freight truck border crossings have increased considerably over the last decade. Recent statistics show the number of trucks entering the United States rose from 8.7 million in 1996 to 11.4 million in 2007 (U.S. Department of Transportation [DOT], 2008a) (Figure 1). As border traffic grows, public agencies continue to try to identify innovative ways to relieve congestion while still maintaining security (U.S. DOT, 2008a). Achieving the “right balance” between open borders and security continues to be a top national priority (Homeland Security Advisory Council, 2008).