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Traffic safety effects when overtaking 30 meter trucks
Statens väg- och transportforskningsinstitut, Trafik och trafikant,TRAF, Samspel människa, fordon, transportsystem, MFT.
Statens väg- och transportforskningsinstitut, Trafik och trafikant,TRAF, Samspel människa, fordon, transportsystem, MFT.ORCID-id: 0000-0002-4169-610X
Statens väg- och transportforskningsinstitut, Trafik och trafikant,TRAF, Samspel människa, fordon, transportsystem, MFT.
Statens väg- och transportforskningsinstitut, Trafik och trafikant,TRAF, Samspel människa, fordon, transportsystem, MFT.ORCID-id: 0000-0002-2061-5817
Vise andre og tillknytning
2012 (engelsk)Inngår i: Advances in Human Factors and Ergonomics 2012- 14 Volume Set: Proceedings of the 4th AHFE Conference 21-25 July 2012 / [ed] Gavriel Salvendy, Waldemar Karwowski, Taylor & Francis, 2012Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

The purpose of this paper is to investigate if the introduction of extra-long and heavy trucks has an effect on traffic safety on Swedish roads, especially in relation to overtaking maneuvers. Traffic safety effects will be measured in terms of road user behavior concerning accelerations and time slots. First, focus group interviews with heavy truck drivers. Truck drivers that do not drive extra-long trucks believe that the introduction of extra-long trucks will create a number of traffic safety problems especially in terms of conflicts with ordinary road users. The drivers of extra-long trucks do not experience the problems that ordinary truck drivers predict. The problems they experience can be taken care of with more planning (thinking ahead). They also believe that the traffic sign on the back of the extra-long vehicle has a positive effect. The truck company, working environment and truck equipment are other important aspects mentioned by the drivers of the extra-long vehicles.

The simulator study investigates overtaking situations on a 2+1-lane highway, with extra-long trucks (30.4 m) and ordinary trucks (18.75 m). The results reveal that the distance from the rear/front of the truck to the point where only one lane exists affects car drivers’ decision to overtake, independently of truck length. If the truck is in the relatively same position, the timeslot for a safe overtaking maneuver before next one-lane section was reduced significantly for extra-long trucks compared to ordinary trucks. The conclusion is that there exist small tendencies which point in the direction of enhanced traffic safety problems with the introduction of extra-long trucks. The results should, however, be interpreted with caution as the number of data points was few and collected in specific situations and in specific conditions. It was neither considered how the introduction of longer and heavier trucks, given a constant amount of goods, reduces the number of heavy trucks on the road network.

sted, utgiver, år, opplag, sider
Taylor & Francis, 2012.
Serie
Advances in Human Factors and Ergonomics Series
Emneord [en]
Longer and heavier vehicle, Impact study, Overtaking, Simulator (driving), Decision process
HSV kategori
Forskningsprogram
80 Road: Traffic safety and accidents
Identifikatorer
URN: urn:nbn:se:vti:diva-7096ISBN: 146655262X (tryckt)ISBN: 9781466552623 (tryckt)OAI: oai:DiVA.org:vti-7096DiVA, id: diva2:747394
Konferanse
4th International Conference on Applied Human Factors and Ergonomics. 21-25 July 2012. San Francisco, California, USA.
Tilgjengelig fra: 2014-09-16 Laget: 2014-09-16 Sist oppdatert: 2016-08-31bibliografisk kontrollert

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