Transportation Systems: Critical Infrastructure and Key Resources Sector-Specific Plan as input to the National Infrastructure Protection Plan [open pdf - 4MB]
"The Transportation Systems Sector - a sector that comprises all modes of transportation (Aviation, Maritime, Mass Transit, Highway, Freight Rail, and Pipeline) - is a vast, open, interdependent networked system that moves millions of passengers and millions of tons of goods. The transportation network is critical to the Nation's way of life and economic vitality. Ensuring its security is the mission charged to all sector partners, including government (Federal, State, regional, local, and tribal) and private industry stakeholders. Every day, the transportation network connects cities, manufacturers, and retailers, moving large volumes of goods and individuals through a complex network of approximately 4 million miles of roads and highways, more than 100,000 miles of rail, 600,000 bridges, more than 300 tunnels and numerous sea ports, 2 million miles of pipeline, 500,000 train stations, and 500 public-use airports. The sector's security risks are evident by attacks either using or against the global transportation network, including not only the September 11, 2001, attacks on the World Trade Center and the Pentagon, but also more recent attacks on transportation targets such as the 2005 London bombings, the coordinated attack on four commuter trains in Madrid in 2004, and the 2006 plot uncovered in the United Kingdom targeting airlines bound for the United States. These recent attacks are a sobering reminder that the transportation system remains an attractive target for terrorists post-September 11. Hurricane Katrina and other disasters (natural and industrial) also highlight the risk to the sector that is not directly related to terrorism. Taken together, the risk from terrorism and other hazards demands a coordinated approach involving all sector stakeholders."
Dept. of Homeland Security: http://www.dhs.gov/