Instrument Runway 1 : A runway equipped with electronic and visual navigation aids for which a precision or non-precision approach procedure having straight-in landing minimums have been established
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}