Collapse Zone 2 : The area around a structure that would contain debris if the building were to collapse. This is generally 1. 5x the height of the structure
Wikipedia, The Free Encyclopedia, Glossary of firefighting terms, Wikimedia Foundation, CA, USA 2012. http://en.wikipedia.org/wiki/Glossary_of_firefight ing_terms, (Fr Srvc - Amer) {510}