Open Path : That part of a building's escape route (including dead ends) not protected by fire or smoke separations, and which terminates at a final exit or exitway
Ministry of Business, Innovation and Employment, Glossary of terms and acronyms, Wellington, New Zealand 2010. http://wwwsosh.govt.nz/resources/glossary-u.shtml, (Occupn Hlth and Sfty - Brit) {530}