Effecten van GIDS-boodschappen op de werkbelasting van de bestuurder : een exploratieve studie [Effects of GIDS messages on driver workload: an exploratory study]
bookPart
Messages that are presented to a driver by support systems in the car should be presented only when the driver is able to pay attention to them or when the message is urgent. To be able to know when messages can be presented, an intelligent support system needs to know to what extent individual messages and driving situations load the driver. For the latter one is referred to Verwey (1993a,b,c). In the present study the load of a set of visual and auditory speech messages, as available in the Generic Intelligent Driver Support (GIDS) system, was quantified in a laboratory environment. While performing a tracking task messages were presented, each preceded by a cue: a description of a message. Subjects had to respond as fast as possible whether cue and message were compatible (i.e. whether a message was appropriately described by the preceding cue). The time from the onset of the message to the response was taken as an indicator for workload. This was done under the assumption that perceiving the message induces workload as well. The main result is an ordering of GIDS messages in terms of workload. It confirms the notion that visual messages load less than oral messages because perception time is determined by the observer but these messages have a cost in tracking performance. Also, auditory navigati-on messages load less than other auditory messages and messages with the most informative part at the beginning were associated with less load than those with the informative part at the end.
TNO Identifier
8042
Publisher
Verkeerskundig Studiecentrum, Rijksuniversiteit Groningen
Source title
Verkeersgedrag in onderzoek
Editor(s)
Steyvers, F.J.J.M.
Horst, A.R.A. van der
Horst, A.R.A. van der
Place of publication
Haren
Pages
69-73
Files
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