Hazard anticipation of young novice drivers - SWOV
Hazard anticipation of young novice drivers - SWOV
Hazard anticipation of young novice drivers - SWOV
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In this thesis, hazard <strong>anticipation</strong> is conceived as a precondition to perform<br />
adequately on what Michon (1985) has defined as the tactical level <strong>of</strong> the<br />
driving task. On the tactical level, <strong>drivers</strong> choose their speed and headway in<br />
changing traffic situations. They more or less automatically take certain risks<br />
when dealing with traffic situations (e.g. 'Shall I overtake that slow driving<br />
car in front <strong>of</strong> me?' or 'Is the gap wide enough to turn left?').<br />
Both <strong>of</strong> what is usually called hazard perception and the over<br />
representation <strong>of</strong> <strong>young</strong> <strong>novice</strong> <strong>drivers</strong> in crashes, are not new topics in<br />
traffic psychology. In the past decades a vast amount <strong>of</strong> studies have been<br />
devoted to the <strong>novice</strong> driver problem and poor hazard perception has <strong>of</strong>ten<br />
been mentioned as one <strong>of</strong> the causes <strong>of</strong> the high crash rate <strong>of</strong> <strong>young</strong> <strong>novice</strong><br />
<strong>drivers</strong>. Indeed, more than once an association has been found between poor<br />
performance on a hazard perception task by mostly <strong>young</strong> <strong>novice</strong> <strong>drivers</strong><br />
and crash involvement (Congdon, 1999; Darby et al., 2009; McKenna &<br />
Horswill, 1999; Pelz & Krupat, 1974; Quimby et al., 1986; Wells et al., 2008).<br />
To date however, poor hazard <strong>anticipation</strong> has been viewed either as a<br />
cognitive problem (i.e. not having the skill to detect, to recognize and to<br />
predict hazards) or as motivational problem in terms <strong>of</strong> poor risk assessment,<br />
poor self-assessment and the acceptance <strong>of</strong> high levels <strong>of</strong> risks. In this thesis,<br />
an attempt is made to bridge the two different views. In order to do this the<br />
phenomenon <strong>of</strong> hazard <strong>anticipation</strong> has been approached from a cognitiveneuropsychological<br />
perspective. The key concept in this approach is mental<br />
representation or schema. While driving schemata unfold in interaction with<br />
external stimuli (i.e. what the driver perceives) and internal stimuli (i.e. what<br />
the driver feels), the selected dominant schemata enable the driver to find<br />
valid cues in the road and traffic situation and to anticipate forthcoming<br />
events. Activation and inhibition <strong>of</strong> schemata and action selection most <strong>of</strong> the<br />
times happen automatically, especially when the driver is an experienced<br />
driver. Sometimes selection <strong>of</strong> schemata is controlled. To explain in more<br />
detail how <strong>drivers</strong> anticipate hazards the framework <strong>of</strong> Brouwer & Schmidt<br />
(2002) is applied. This framework was originally developed to provide<br />
insight in the multiple causation <strong>of</strong> sometimes aberrant (driving) behaviours<br />
dependent on underlying (brain) disorders and differences in expertise. The<br />
framework describes the hypothetical sub-processes that are involved in<br />
action selection by <strong>drivers</strong> and the interaction between these sub-processes.<br />
Errors or omissions in action selection by <strong>drivers</strong> with mild Alzheimer's<br />
disease could for example be the result <strong>of</strong> slow information processing <strong>of</strong><br />
content information and limited working memory capacity. On the other<br />
hand in patients with mild frontotemporal dementia poor monitoring <strong>of</strong> the<br />
risks involved in road and traffic situations and impaired inhibition <strong>of</strong> unsafe<br />
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