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- Kovordanyi, Rita, 1964-, et al.
(author)
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Dynamically Deployed Support as a Potential Solution to Negative Behavioral Adaptation
- 2005
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In: 2005 IEEE Intelligent Vehicles Symposium Proceedings, 2005. - : IEEE conference proceedings. - 0780389611 ; , s. 613-618
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Conference paper (peer-reviewed)abstract
- Advanced driver assistance systems are designed to make driving easier that is, to alleviate the driver's workload, and to increase traffic safety. However, traffic safety is affected by negative behavioral adaptation, meaning that drivers tend to increase speed and pay less attention to driving when supported by an advanced assistance system. We relate behavioral adaptation to reinforcement learning at a subconscious level, and propose that driver assistance is dynamically varied within predetermined safety limits. The aim of employing a dynamic assistance policy is to prevent the driver from noticing a constant improvement in vehicle handling. We conclude by describing ongoing work for empirically evaluating an improved lane departure warning system that uses a dynamic assistance policy.
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- Kovordanyi, Rita, 1964-, et al.
(author)
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Night-vision display unlit during uneventful periods may improve traffic safety
- 2006
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In: 2006 Intelligent Vehicles Symposium sponsored by the IEEE Intelligent Transportation Systems Society,2006. - : IEEE conference proceedings. - 490112286X ; , s. 282-287
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Conference paper (peer-reviewed)abstract
- It is always uncertain if a new assistance system enhances traffic safety or not: empirical studies indicate that driving style may deteriorate when the driver experiences the increased safety margin created by an advanced driver assistance system. To minimize this negative effect on driving style, we redesigned a night vision system so that it appeared differently to the driver: we let the system's head-up display be turned off during operation, to be lit up only when the system detected an obstacle (e.g., a pedestrian or animal) on the road ahead. This presentation style was compared in a simulator study to the traditional solution of constantly lit-up display. The results indicate that drivers reacted more reliably (showed less variance in reaction times) using the new system, which implies that the lighting up of the IR-display constituted an effective warning. Also, drivers to a greater extent drove at normal (slower) speeds when using the re-designed system. More generally, systems offering discontinuous support (i.e. only in critical situations) may have less of a negative effect on driving style, as their presence is not felt as vividly by the driver
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