Earthmoving machinery is often operated on sloped terrain, is transported on flatbed trucks, and trailers, and often has limited operator visibility that places pedestrian workers at risk of being run over [Baker et al., 1992; McCann, 2006; Hinze and Teizer, 2011]. Fatal injury ratios derived from Mine Safety and Health Administration data suggest that pedestrian workers around earthmoving machinery are at greater risk of fatal injury than the operators themselves [Stanevich, 1986]. The risk to workers on foot posed by earthmoving machinery has been previously noted for the highway and street construction industry [Pratt et al., 2001], the mining industry [Stanevich, 1986], and the excavation industry [McCann, 2006]. Prevention strategies are similar to those already discussed: using ROPS/seat belt combinations [McCann, 2006], coordinating the flow of construction equipment on site [Pratt et al., 2001; Hinze and Teizer, 2011], establishing restricted access zones [McCann, 2006], using spotters [McCann, 2006; Hinze and Teizer, 2011], and developing proximity warning systems [McCann, 2006 ].