Screen Line 2 : An imaginary line, usually following such physical barriers as rivers or railroad tracks, that splits a study area into two parts and along which traffic counts and interviews may be conducted and compared
Ilan Kelman (ed.), Vulnerability and Resilience Definitions and References, Version 2, 2007. http://www.islandvulnerability.org/docs/vulnres.pd f, (Vulnr and Resilience - Brit) {524}