Recommendations for Bridge and Tunnel Security
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2003-09-01
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Abstract:A Blue Ribbon Panel (BRP) of bridge and tunnel experts from professional practice, academia, federal and state agencies, and toll authorities convened to examine bridge and tunnel security and to develop strategies and practices for deterring, disrupting, and mitigating potential attacks. The BRP, sponsored jointly by the Federal Highway Administration (FHWA) and the American Association of State Highway and Transportation Officials (AASHTO), acknowledges that the nation’s bridges and tunnels are vulnerable to terrorist attacks. The intent of this paper is to recommend policies and actions to reduce the probability of catastrophic structural damage that could result in substantial human casualties, economic losses, and socio-political damage. The success and safety of the transportation system, combined with the perceived number of parallel routes, can lead to the conclusion that the transportation system is so robust that it is not susceptible to significant disruption by terrorist attack. In the opinion of the BRP members, this conclusion is incorrect. In many parts of the country, the transportation system is straining to keep up with the current demands o society and the economy. The actions of terrorists can impose critical damage to some bridges, and, with explosive forces, exert loads that exceed those for which components are currently being designed. Worse yet, in some cases, the loads can be in the opposite direction of the conventional design loads.
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