15.1 million TEU's moved through the ports of Los Angeles and Long Beach during 2014, allowing the two Southern California ports to maintain their title for the busiest U.S. port complex. Strong cargo volumes are not new to the West Coast port complex though. Between 2000 and 2004, the Pacific port complex identified the need to keep pace with growing cargo volumes and began working towards a solution to decrease congestion at marine terminals. Therefore, in 2005, PierPASS was implemented in an effort to ease truck congestion, improve security and help the local air quality. Under the new PierPASS program, terminals established five new night gate shifts per week, lengthening operation windows for ocean container pickup and delivery.