Riktlinjer och observationsunderlag för att avgöra om en olycka har orsakats av att föraren somnat eller nästan somnat

Riktlinjer och observationsunderlag för att avgöra om en olycka har orsakats av att föraren somnat eller nästan somnat

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Driver sleepiness is one common reason for road crashes. The exact number of crashes is difficult to say. The aim of the present study is to identify criteria and protocols to use in field in order to learn more about driver sleepiness involvement in road crashes. The study has been done in collaboration with the police in Umeå. The police in Linköping and Gothenburg have also contributed during the development of the protocols. The study has three phases: review of earlier studies and experience from other countries, development of a protocol based on the most relevant criteria and finally a pilot test using the protocols at field directly at the road crashes. The result shows that attempts have been done all over the world. However, very few studies have been published or documented in scientific journals. It is more a question of practical experience at best having been documented in technical reports. The most used protocols are based on the work done by the Canadian police. They use two types of checklists; one at road directly at the crash site, one at the office in case the first analysis indicates suspicions that sleepiness has been involved. In the present study the protocol used directly at the crash site was used. The results show that the questions involved in the protocol were easily addressed to the involved drivers. The field study shows problems to motivate the police officers to take their time to use the protocol in field. The reason for this is unknown. One reason could be that this new routine needs time to be settled. The motivation among the police officers was seen to increase during the project. One explanation given was that they were more and more aware of the problem with sleepiness, thanks to the protocols. This will most truly make them more motivated over time.

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