“…A recent Institute of Medicine report on EMS discusses longer travel times and higher per capita overhead costs in less densely populated areas (IOM, 2007; also see Erisman, 2001). Empirical research indicates that urban and rural EMS systems differ on a number of dimensions, such as call volume, response time, and personnel makeup (Giordano and Cagliuso, 2002;Mears and Cummings, 2002), including evidence of more rapid response times in urban areas compared with rural areas (Vukmir, 2004), and that EMS personnel in urban areas may on average have higher qualifications than do rural EMS personnel (Chng et al, 2001).…”