Interactions between cars and motorcycles: testing underlying concepts through integration of on-road and simulator studies
conference contributionposted on 08.11.2016 by Michael G. Lenne, Paul M. Salmon, Vanessa Beanland, Guy H. Walker, Geoffrey Underwood, Ashleigh Filtness
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We conducted on-road and simulator studies to explore the mechanisms underpinning driver-rider crashes. In Study 1 the verbal protocols of 40 drivers and riders were assessed at intersections as part of a 15km on-road route in Melbourne. Network analysis of the verbal transcripts highlighted key differences in the situation awareness of drivers and riders at intersections. In a further study using a driving simulator we examined in car drivers the influence of acute exposure to motorcyclists. In a 15 min simulated drive, 40 drivers saw either no motorcycles or a high number of motorcycles in the surrounding traffic. In a subsequent 45-60 min drive, drivers were asked to detect motorcycles in traffic. The proportion of motorcycles was manipulated so that there was either a high (120) or low (6) number of motorcycles during the drive. Those drivers exposed to a high number of motorcycles were significantly faster at detecting motorcycles. Fundamentally, the incompatible situation awareness at intersections by drivers and riders underpins the conflicts. Study 2 offers some suggestion for a countermeasure here, although more research around schema and exposure training to support safer interactions is needed.
Study 1 is funded through an Australian Research Council Discovery Grant (DP120100199). Study 2 formed part of the 2-Be-Safe European Union co-funded research project, for which Australian funding was provided through a National Health and Medical Research Council Australian-European Union Collaborative Research Grant (ID 490992). Paul Salmon’s contribution to this research is funded through the Australian National Health and Medical Research Council post-doctoral training fellowship scheme.