Charter Service Hours : The total hours operated by revenue vehicles while in charter service. Charter service hours include hours operated while carrying passengers for hire, plus associated deadhead hours
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}