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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hazards, <strong>drivers</strong> have to imagine a possible other road user they cannot see<br />
(yet). In order to anticipate overt latent hazards, <strong>drivers</strong> have to be aware <strong>of</strong><br />
the fact that visible other road users in the given circumstances could start<br />
acting dangerously. It is probably more difficult to imagine another road<br />
user who is not visible than to predict a dangerous action committed by a<br />
visible other road user. There are indeed indications that <strong>young</strong> <strong>novice</strong><br />
<strong>drivers</strong> have more problems anticipating covert latent hazards than overt<br />
latent hazards (Borowsky, Oron-Gilad , & Parmet, 2009; Pradhan et al., 2005;<br />
Sagberg & Bjørnskau, 2006), but to date, the difference between covert latent<br />
hazards and overt latent hazards has not been systematically analysed. In<br />
this thesis, an explicit distinction is made between covert latent hazards and<br />
overt latent hazards. The third expectation is that:<br />
• Novice <strong>drivers</strong> (both <strong>young</strong> <strong>novice</strong> <strong>drivers</strong> and older <strong>novice</strong> <strong>drivers</strong>)<br />
have more problems anticipating covert latent hazards than overt latent<br />
hazards.<br />
The objective <strong>of</strong> the study presented in this chapter was to test the mentioned<br />
three hypotheses. In order to test the hypotheses among others, eye<br />
movements and the durations <strong>of</strong> eye fixations were recorded with an eye<br />
tracker. The (theoretical) relationship between hazard <strong>anticipation</strong> and eye<br />
movements is discussed in the Sections 4.1.5, 4.1.6 and 4.1.7 <strong>of</strong> this<br />
introduction. Before these sections on eye movements and hazard<br />
<strong>anticipation</strong>, the literature on the relationship between hazard <strong>anticipation</strong><br />
and crash rate is reviewed in Section 4.1.2. In Section 4.1.3, a review <strong>of</strong><br />
methods used to test hazard <strong>anticipation</strong> and the differences found with<br />
these methods between <strong>novice</strong> <strong>drivers</strong> and experienced <strong>drivers</strong> is presented.<br />
What the most suitable types <strong>of</strong> test are to test the hypotheses, is discussed in<br />
Section 4.1.4. In the last section <strong>of</strong> this introduction (Section 4.1.8), the test<br />
methods that were applied are mentioned and the detailed hypotheses are<br />
presented.<br />
4.1.2. Scores on hazard perception tasks and crash rate<br />
In several studies an association has been found between crash rate and<br />
performance on what is mostly called a hazard perception task (Congdon,<br />
1999; Darby, Murray, & Raeside, 2009; McKenna & Horswill, 1999; Pelz &<br />
Krupat, 1974; Quimby et al., 1986; Wells et al., 2008). The better the scores on<br />
the hazard perception tests were, the lower the crash rate was. There are<br />
however exceptions. In the method that is used most <strong>of</strong>ten to measure<br />
hazard perception, participants watch video clips taken from a driver's<br />
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