United States. Department of Transportation. Federal Highway Administration (2008). Priority, Market-Ready Technologies and Innovations: Bridge and Tunnel Security (Report No. FHWA-HRT-08-031). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/67273
United States. Department of Transportation. Federal Highway Administration. Priority, Market-Ready Technologies and Innovations: Bridge and Tunnel Security. Report no. FHWA-HRT-08-031. United States. Department of Transportation. Federal Highway Administration, 2008. https://rosap.ntl.bts.gov/view/dot/67273.
United States. Department of Transportation. Federal Highway Administration Priority, Market-Ready Technologies and Innovations: Bridge and Tunnel Security. United States. Department of Transportation. Federal Highway Administration, 2008, Report no. FHWA-HRT-08-031, ROSA P. https://rosap.ntl.bts.gov/view/dot/67273.
Some of these structures (595,000 bridges and over 300 highway tunnels) could easily be terrorist targets because they are easily accessible to all kinds of vehicles without screening or inspection and have high economic value. Preliminary studies indicate that there are approximately 1,000 bridges across the United States w here substantial casualties, economic disruption, and other societal ramifications could result from isolated attacks. Significant investment to prevent or reduce the consequences of such attacks may be justified as an alternative to the high cost of response, recovery, and subsequent socioeconomic damage.
United States. Department of Transportation. Federal Highway Administration (2008). Priority, Market-Ready Technologies and Innovations: Bridge and Tunnel Security (Report No. FHWA-HRT-08-031). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/67273
United States. Department of Transportation. Federal Highway Administration. Priority, Market-Ready Technologies and Innovations: Bridge and Tunnel Security. Report no. FHWA-HRT-08-031. United States. Department of Transportation. Federal Highway Administration, 2008. https://rosap.ntl.bts.gov/view/dot/67273.
United States. Department of Transportation. Federal Highway Administration Priority, Market-Ready Technologies and Innovations: Bridge and Tunnel Security. United States. Department of Transportation. Federal Highway Administration, 2008, Report no. FHWA-HRT-08-031, ROSA P. https://rosap.ntl.bts.gov/view/dot/67273.
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