摘要: |
This study used carrier-collected crash data to obtain a more representative picture of how ELDs performed under real-word driving conditions. Second, the analysis was at the truck level; thus, trucks with ELDs were compared to trucks without ELDs (i.e., the Virginia Technical Transportation Institute [VTTI] was able to differentiate crashes and HOS violations involving a truck with an ELD and those without). Third, a measure of exposure was calculated (miles traveled) at the truck level. Last, although the sample of participating carriers in the current study was a convenience sample, every attempt was made to obtain a sample that was representative of the general CMV population. |