The US Department of Homeland Security (DHS) has developed a ten-by-five-metre inflatable structure that could be quickly deployed to isolate sections of transit or rail tunnels in the event of ...
After Hurricane Sandy decimated the subway system last year, officials pledged to install new devices to help halt the rising tides—including flood gates and, more ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback