Imagine being one of the unlucky millions of people caught in the great black out of 2003 in New York City. While many of you watched the evening news with interest, those experiencing the power outage faced emotional panic plus the risk of personal injury in pitch black hallways and elevators. Considering that slip and fall injuries in the workplace alone are responsible for almost $5 billion dollars in wage replacement and medical payments, the additional costs for injuries in mercantile centers, hotels, and entertainment complexes caused by natural and unnatural disasters gives one pause to think.
http://www.starnetflooring.com/wp-content/uploads/2010/03/vol4_4.pdf
Link to Starnet Starlog Volume IV issue 4 below.