Utvärdering av trötthetsvarningssystem i buss


Previous studies have shown that it is common for bus drivers in public transport to struggle to stay awake several times a month. Several systems for detecting fatigue in drivers are currently available, but how these types of systems affect and are perceived by bus drivers is not known. The purpose of the study was to evaluate a fatigue warning system for use in long-distance buses. The study comprises two sub-studies; a survey and an on-road evaluation of the fatigue warning system. The survey showed that the factors that were considered the most tiring were driving at night, irregular working and sleeping hours and spread-over shifts/long time since a break. 29% of the drivers stated that they had to fight to stay awake when driving a bus 2–4 times/month or more. The on-road study showed that self-rated sleepiness was slightly lower when the fatigue warning system was active. The logs of fatigue events from the fatigue warning system and the drivers' reports of received warnings did not match their perceived fatigue. The drivers were generally positive about the fatigue warning system but emphasized that the system needs to be more reliable.



Electric Road Systems Conference (ERSC2020)

Welcome to the 4th Electric Road Systems Conference (ERSC2020), 12–13 May 2020 in Lund, Sweden

Via Nordica 2020

VTI participates at Via Nordica 2020 in Malmö 10–12 June 2020. The congress is organised by the Nordic Road Association (NVF).

ICTTP 2020

ICTTP, International Conference on Traffic and Transport Psychology, is held in Gothenburg, Sweden.



VTI part of Swedish-Indian collaboration for increased traffic safety

More than 150,000 traffic-related fatalities occur annually in India. Cooperation between Swedish and Indian companies and institutions is now being formed to greatly reduce these. The lessons learned will be utilized for development needs in different parts...


Cherish the support for congestion charges

The introduction of a congestion charge in Stockholm had the intended effect of reducing congestion - even long term.  And after the introduction of the charges the public support steadily increased. This success story has attracted extensive interest from...


The Pedestrian Perspective in new projects

Two projects focusing on safety for pedestrians have recently commenced at VTI: Smart Urban Traffic Zones and Safety for Pedestrians. There are links to the ongoing EU project VIRTUAL – for which Research Director Astrid Linder is the coordinator.


Improved lighting for pedestrians and cyclists

Together with Lund University, researchers from VTI will study how outdoor lighting can improve the quality of walking and cycling trips at dusk and darkness.


VTI and SAFER are organising the world’s largest traffic and transport psychology conference in Gothenburg

In August 2020, VTI and SAFER are organising the International Conference on Traffic and Transport Psychology (ICTTP) in Gothenburg. ICTTP is held every four years, and this year is the seventh conference.


Kilometre tax is expected to have the greatest environmental impact

How can environmentally differentiated charges and other policy instruments reduce the freight transports' environmental impact? VTI has participated in a research project on this subject.