Hazard anticipation of young novice drivers - SWOV

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order to avoid attribution of an experienced crash or near crash to the other road users involved in the situation and to promote far transfer, participants were also challenged to detect hazards, to comprehend the mechanisms behind the development of a hazard with the aid of plan views and to improve themselves. This training program of approximately one hour, in which a low cost fixed-base simulator was used, improved visual search for latent hazards of young novice drivers in both near and far transfer situations significantly. The developed simulator-based training program can become part of initial driver training programs or part of an advanced course for novice drivers. 7.8. Further research In this thesis, it is hypothesised that hazard anticipation has an emotional and motivational aspect and that there is a difference with regard to this aspect between young drivers and middle-aged drivers. This aspect could not be demonstrated. It is likely that this aspect could not be demonstrated because it was not adequately operationalized in the risk assessment and action selection task (i.e. the photo task). It could be that something of this aspect would have been measured if Skin Conductance Response (SCR) had been used. Another possibility to measure this aspect is to show participants the video clips that contain the latent hazards while they are situated in an apparatus for functional Magnetic Resonance Imaging (fMRI). If there is greater activity in for example the amygdala when approaching a latent hazard, this would be an indication of emotional arousal. The video clips with latent hazards that do not materialize have a high potential to measure differences in hazard detection and recognition skills between novice drivers and experienced drivers, as the differences between the two groups on this task both with regard to fixations on covert latent hazards and mentioned latent hazards were large. This potential disappeared when mouse clicks in pauses were used as response method. It could be worthwhile to try out response methods that are suitable for mass testing in which there are no interruptions in the video clips and in which the response method is not advantageous for persons with experience in computer gaming. The simulator-based hazard anticipation training had a positive effect on visual search for latent hazards. Whether this effect retains over a longer period was not investigated, as the participants were tested within an hour after the training. Because the experience of crashes or near crashes during the simulator training is presumed to create arousal and moderate levels of 241
arousal enhance memory (e.g. McGaugh, 2000), retention of the simulatorbased training program maybe better than retention of PC-based training program on hazard anticipation that showed about similar improvements in visual search directly after the training. Whether the effects of simulatorbased hazard anticipation training indeed retain longer than the effects of a PC-based training program remains to be tested. It is also important to test if there is transfer of the training to driving in real traffic and that the ultimate goal is to test if the training results in a reduction of crash rate. 242
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Hazard anticipation of young novice
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SWOV-Dissertatiereeks, Leidschendam
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Promotores: Prof. dr. W.H. Brouwer
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development of hazard perception te
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Table of contents 1. General introd
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1. General introduction 1.1. Hazard
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27% of all driver fatalities were d
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eported 73 car crashes during the p
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with respondents that started their
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2. Determinants that influence haza
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planning of a trip, choice of the m
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that encompasses the entire second
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peaks at 16.7 years of age in girls
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Figure 2.2. Model of the different
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Keating (2007) mentioned the matura
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Table 2.1. Relative fatality ratios
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When do these sex differences emerg
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Functional brain differences in boy
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oth groups had in common was their
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3. Extroversion: Extrovert persons
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is less in these brain areas, but a
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2.4.2. Peer group influences In ado
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deduced that car drivers younger th
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or little interference with the dri
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2.4.4. Socioeconomic and cultural b
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Preusser, 2002). The crash rate of
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impact on road safety. Despite the
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condition for the older, more exper
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person (e.g. a passenger or a pedes
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tasks was 3.10, 95% CI [1.73, 5.47]
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traffic situation is safe enough to
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2.6.1. Exposure In Section 1.2, the
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58 56 Male Drivers Female Drivers S
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100 Killed car occupants aged 18-24
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less well equipped to detect and re
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3.2. Hazard anticipation A hazard i
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Drivers are aware of hazards when t
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1. Possible other road users on col
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oriented and the vertical axis is t
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away from me, given the particular
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the task demands. The range of acce
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Figure 3.4. Zero-risk model (Näät
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with FTD, poor monitoring of the ri
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elatively high speed in the same di
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only associated with top-down activ
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information transformation processe
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(consciously) controlled action reg
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on the left lane of a motorway (in
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3.7.1, 3.7.2 and 3.7.3. This is don
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driver does not think that she or h
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for experienced drivers even in cir
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sound was heard) and some participa
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stage. In this stage, learners comm
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A theory that explains how we may l
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were about to turn left while their
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4. Hazard anticipation, age and exp
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hazards, drivers have to imagine a
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overview of their studies: McKenna
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with regard to the risk felt in the
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Participants were requested to pres
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of the visual acuity in the fovea.
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working memory. Both bottom-up proc
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without gaze control (the gray arro
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urban areas than on rural roads, no
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the right between the parked cars i
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that in the video clips no visible
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• Young learner drivers (age rang
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• Did you have moments that you t
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difference between overt latent haz
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4.2.3. Procedure On arrival, the ex
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ecognition task, risk assessment an
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Table 4.1. Percentage of the partic
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that cognitive aspects of hazard an
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80 70 Mean percentage mentioned cov
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Table 4.3. Percentages of latent ha
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latent hazards was higher than the
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Discussion about fixated latent haz
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mentioned latent hazards, young lea
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Gaze directions and fixation durati
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4.3.3. Relationship between the two
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selection task cannot be used to te
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Underwood, Chapman et al. (2002) an
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more difficulties to detect and rec
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5. Testing hazard anticipation, an
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• The video task and the photo ta
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animation clips were made, each las
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The photo task Three experts on the
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5.2.3. Procedure Participants were
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5.2.6. Overt and covert latent haza
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The effect size was small, η 2 P =
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action selection task of Chapter 4,
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3. Effect of interruptions The inte
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5.3.3. Procedure Participants were
Page 192 and 193: The mean click score was M = 7.7 (S
Page 194 and 195: ottom-up gaze control (the tractor
Page 196 and 197: 6. Simulator-based hazard anticipat
Page 198 and 199: al., 2002; Regan, Triggs, & Godley,
Page 200 and 201: esources to vehicle control (steeri
Page 202 and 203: of the University of Massachusetts
Page 204 and 205: In contrast, Ivancic & Hesketh (200
Page 206 and 207: students, whereas participants that
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Page 210 and 211: 6.2.3. Training intervention SimRAP
Page 212 and 213: A screen capture of the centre scre
Page 214 and 215: Table 6.2. (continued) critical sit
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Page 218 and 219: latent hazards. This is not very su
Page 220 and 221: For the control group the opposite
Page 222 and 223: The combined three near transfer si
Page 224 and 225: training program was mostly on over
Page 226 and 227: 7. Discussion and conclusions 7.1.
Page 228 and 229: ehaviour could be the cause of unsa
Page 230 and 231: transport. It can also be status, a
Page 232 and 233: of this is an intervention in the a
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Page 236 and 237: than both other groups. It is likel
Page 238 and 239: etter scanning for latent hazards i
Page 240 and 241: hazards are a good indicator of som
Page 244 and 245: References Abelson, R.P. (1981). Ps
Page 246 and 247: underlying reaction time to visual
Page 248 and 249: Darby, P., Murray, W. & Raeside, R.
Page 250 and 251: Fuller, R. (2007b). Motivational de
Page 252 and 253: Irwin, D.E. (2004). Fixation locati
Page 254 and 255: Louwerens, J.W., Gloerich, A.B.M.,
Page 256 and 257: Murray, Å. (1998). The home and sc
Page 258 and 259: Roth, M. (2009). Social support as
Page 260 and 261: Ulleberg, P. (2001). Personality su
Page 262 and 263: Summary Driving most of the times,
Page 264 and 265: Deficit Hyperactivity Disorder (ADH
Page 266 and 267: framework of Brouwer & Schmidt (200
Page 268 and 269: and older learner drivers. From the
Page 270 and 271: prepare participants for the tasks.
Page 272: group than before the training and
Page 275 and 276: verkeer. Het probleem van de jonge
Page 277 and 278: status en een auto betekent ook vri
Page 279 and 280: Belangrijk is dat zowel bij zichtba
Page 281 and 282: en ervaren bestuurders (Huestegge e
Page 283 and 284: afgerond, hadden ook een significan
Page 285 and 286: om hun veiligheidsmarge te vergrote
Page 288: About the author Willem Vlakveld wa
Page 291 and 292: 4. On a rural road when driving str
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they keep on walking in the same di
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5. The driver drivers straight on a
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Appendix 3 Additional latent hazard
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Appendix 4 Glossary of abbreviation
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economic progress and world trade.
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Appendix 5 Glossary on brain issues
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Gonadotropin releasing hormone Gray
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MEG Motor cortex MRI Myelination Ne
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PFC Serotonin Striatum Synaptic pru
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SWOV-Dissertatiereeks In deze reeks
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