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- W215755907 abstract "The question of the title is answered by results from a traffic safety evaluation of incident warning systems (IWS). A review of accidents on the IWS sections showed that a large proportion of accidents at the sites were relevant for IWS, but there were considerable differences between the accident patterns at each site. The IWS based on roadside light poles caused a reduction of driving speeds, especially the highest ones, and thereby stabilized the traffic flow. Most of the disturbances and conflicts were connected to overtaking situations. The number of overtakings and related disturbances had decreased after the implementation of the IWS. The speed changes indicated a reduction in accident risks, most likely of the magnitude of 10-15%. According to a stimulator study, all IWS systems investigated made the drivers slow down and speeded up the drivers' response to the incidents. The content and coding of messages affected driver behavior, especially via the action recommendations displayed. The level of detail in the messages, however, had no effect on the variation of behavior. There were large individual differences between drivers in reacting to IWS messages. Some drivers will obey a message to a rather high degree, while another group will rely more on their own judgement than on the IWS. Earlier accident studies have usually shown accident reductions on the IWS equipped motorway sections. The whole range of the effect on the total number of injury accidents was from -35% to +9%. The effects were more beneficial on secondary accidents." @default.
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- W215755907 date "1996-01-01" @default.
- W215755907 modified "2023-09-24" @default.
- W215755907 title "DO INCIDENT WARNING SYSTEMS IMPROVE SAFETY" @default.
- W215755907 hasPublicationYear "1996" @default.
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