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Sökning: onr:1b9g8tdhz5g5m95p > Bussars trafiksäker...

Bussars trafiksäkerhet vintertid [Elektronisk resurs]

Hjort, Mattias (författare)
Thorslund, Birgitta (författare)
Sundström, Jerker (författare)
Wiklund, Mats (författare)
Öberg, Gudrun (författare)
Statens väg- och transportforskningsinstitut (utgivare)
Publicerad: Linköping : Statens väg- och transportforskningsinstitut, 2008
Svenska 96
Serie: VTI rapport, 0347-6030 0347-6030 ; 618
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  • E-bok
Sammanfattning Ämnesord
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  • Earlier studies have shown that buses are overrepresented at accidents during winter road conditions compared to other vehicle types. Hence, the traffic safety of buses during the wintertime has been studied in more detail. The study comprised the following parts: - Gripping power studies on ice in VTI's tyre test facility. - Accident study and a survey of the use of tyre. - Focus group to gain knowledge about dangerous situations. - Driving simulator study to test the importance of the tyres during problematic situations. Tests in VTI's tyre test facility on smooth ice did not show any significant difference between summer tyres and non-studded winter tyres, while studded tyres exhibit a better ice grip than non-studded tyres. Nor did driving simulator tests when driving on ice covered road under the influence of heavy wind from the side show a difference between summer tyres and non-studded winter tyres. Also in these tests the studded tyres were superior to the non-studded. If studded tyres are used only on one axle, the driving simulator study showed that during side wind the ability to steer is important. The accident study showed that the buses that have summer tyres on the steering axle and winter tyres on the drivé axle has the lowest estimated accident risk, although it is not statistically significant. The buses equipped with studded tyres on both axles could not be statistically analysed since only 2 accidents occurred on bare roadways, and none on icy/snowy roadways, while at the same time the buses in this category drive a lot on icy/snowy roadways. This probably makes these buses the safest on winter roadways. From the focus groups it was clear that the time table has a great influence on the creating of stress and the demands on the drivers to keep the speed even during slippery roadways. Many bus drivers experience large problems with bad snow clearance, or other winter maintenance. At the same time there is a large consciousness among the drivers that it is always their own way of handling the vehicle that is the determining factor for traffic safety. The drivers were expressing a lack of further education and practical exercises with buses on slippery roads. 

Ämnesord

Engineering and Technology  (hsv)
Mechanical Engineering  (hsv)
Vehicle Engineering  (hsv)
Teknik och teknologier  (hsv)
Maskinteknik  (hsv)
Farkostteknik  (hsv)
911 Road: Components of the vehicle  (vti)
911 Road: Components of the vehicle  (vti)
841 Road: Road user behaviour  (vti)
841 Road: Road user behaviour  (vti)
813 Road: Accident risk  (vti)
813 Road: Accident risk  (vti)

Genre

government publication  (marcgt)

Indexterm och SAB-rubrik

Bus
Safety
Winter
Tyre
Studded tyre
Tyre road contact
Friction
Icy road
Wind
Test
Test rig
Simulator
Use
Accident
Risk
Driver
Interview
Behaviour
Attitude
Inställningar Hjälp

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