Assisting the older driver - SWOV

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Effects of a driver support system on workload and driving performance sickness can cause selective dropout of participants, thereby affecting the representativeness of the sample (see also Edwards, Caird, Lamsdale, & Chisholm, 2004). Selective dropout may lead to the wrong conclusions about user acceptance of systems that could improve driver safety, or even worse, to wrong conclusions about the effectiveness of driver assistance systems to improve the driving behaviour of a specific group of road users. To prevent this, simulator sickness should be countered by using experimental procedures that not only include screening procedures for sensitivity to simulator sickness, but also address other factors that might add to simulator sickness, such as simulator configuration (size of the screens, amount of motion cues), and general aspects of the driving environment (proximity of buildings and trees, number of turns, degrees of curvature). Controlling the latter factor is a major challenge when designing an experiment that evaluates the effectiveness of driver assistance systems that support turning left at (sub)urban intersections. 8.5.4. Conclusions Overall, the findings indicate that all three safety‐related messages that were given by the in‐car driver assistance system increased the safety of driver decisions: messages regarding the priority regulation, obstructed view of an intersection, and safe gaps to join or cross traffic streams led to fewer and/or less decelerations of relevant other vehicles. The message regarding an unexpected one‐way street led to fewer route‐errors. No differences were found between the effects on driver behaviour of young and older drivers. Therefore, the evaluated driver assistance system appears to have a positive safety effect for all age groups. Contrary to expectations, none of the support messages reduced workload, and some even increased it. As this is probably the result of the new task that was added to the driving task (listening to and processing the information of the assistance system), it is expected to wear off over time. Functionally old drivers were more positive about the usefulness and satisfying character of messages regarding safe gaps to join or cross, obstructed views of the intersection, and deviating traffic rules or road situations (different speed limit, one‐way street), but were as positive about the usefulness of messages regarding priority regulation as the other age groups. After the actual experience with the support system these opinions 191
Assisting the older driver changed and age differences seemed to disappear. However, another age effect was introduced. Whereas 70% of the functionally young participants considered the timing of messages to be correct or even found that messages came too soon, 60% of the functionally old participants considered them to come too late. This stresses the fact that system settings should be adjustable. 192
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Assisting the older driver Intersec
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SWOV‐Dissertatiereeks, Leidschend
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Promotor: Copromotor: Beoordelingsc
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3.2.3. Conclusions regarding future
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7.3. Preconditions for safe use of
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General introduction General introd
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General introduction is answered by
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Current state of the art: crashes a
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Physical and mental characteristics
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Strategies to improve the older dri
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Theoretical framework to identify n
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Intersection design and the older d
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Effects of intersection design on w
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Advanced driver assistance systems
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Assisting the older driver Withaar,
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Assisting the older driver Appendix
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Samenvatting Samenvatting Dit proef
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Samenvatting Verkeersveiligheidsmaa
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Samenvatting jongere automobilisten
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Samenvatting voordeel dat ze de rij
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Dankwoord Dankwoord Het schrijven v
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Curriculum Vitae Curriculum Vitae R
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Assisting the older driver Nottingh
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