Inspections of people and vehicles at US border crossings are vital to homeland security and preventing unauthorized movement of people and freight into the US interior. However, these inspections incur various costs, including imposing delays on legitimate traffic and increasing expenditures to...

This paper presents operational metrics to determine a passenger transportation system's resilience to terrorism. The metrics range from those specific to the number of trips to more holistic measures that include the contribution of these trips directly and indirectly to economic activity....