Safety factors are generally a main concern for construction sites due to the frequency of work-related injuries and accidents (Shapira 2005; Nunnally 2000; Heravi and Rafsanjani 2011; Peurifoy et al. 2006). Accordingly, safety is always a top priority in any project lifecycle, from beginning to end. In this context, it is extremely critical to discover all the factors that are significant in order to develop proper safety programs that lead to the highest level of safety in a construction site.
The previous study (Cho and Ahn 2014) confirmed that NDOR road maintenance teams also consider safety the most important factor in road maintenance operations. The survey results from NDOR superintendents and crews indicated that they are much more concerned about safety compared to productivity and quality in their crack cleaning and crack routing operations (Park et al. 2015).To address such concerns, a multi-function Crack Router Device (CCD)—one able to rout cracks and clean stubborn vegetation and accumulated de-icing materials from pavement cracks—was designed and manufactured during the previous study supported by NDOR (Cho and Ahn 2014).
