This report comprises an overview of the main findings from all our analyses (‘audits’) of sleep-related road crashes, including four new audits presented as appendices to this report. Also included in the overview are data from three earlier audits, previously described in Road Safety Research Report No. 22 (Reyner et al., 2001). The audits comprise detailed analyses of all crashes on sections of roads of differing types in order to establish the number of crashes resulting in injury and death that were sleep related. As sleep-related crashes (SRCs) tend to occur under monotonous driving conditions, we concentrated our audits on motorways that were both lit and unlit, that differed in traffic density and the number of lanes, and were urban and rural, including one to channel ports. However, audits were also carried out on monotonous ‘A’ trunk and (non-trunk) roads with dual and single carriageways, both lit and unlit, as well as on a ‘B’ single carriageway. (Author/publisher)
Abstract