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Mitträffling på tvåfältsvägar - En kvalitativ undersökning om branschens åsikter och metoder

Svensson, Sara (2015)
Programmes in Helesingborg
Abstract
In order to increase the traffic safety on two-lane roads the Swedish Road Administration introduced new milled rumble strips in the middle of the lane. These rumble strips are a way to attract drivers attention if they are about to unintentionally leave the lane. The milled rumble strips cause both internal and external noise and vibration internally in the vehicle. The Swedish Road Administration have had trouble lately getting these grooves made on the roads where they want to have new milled rumble strips in the centre of two-lane roads. The purpose of this work is to examine the work of milled rumble stripes in the middle of the lane on two-lane roads. The goal is that the work can be able to be of assistance to the Swedish Road... (More)
In order to increase the traffic safety on two-lane roads the Swedish Road Administration introduced new milled rumble strips in the middle of the lane. These rumble strips are a way to attract drivers attention if they are about to unintentionally leave the lane. The milled rumble strips cause both internal and external noise and vibration internally in the vehicle. The Swedish Road Administration have had trouble lately getting these grooves made on the roads where they want to have new milled rumble strips in the centre of two-lane roads. The purpose of this work is to examine the work of milled rumble stripes in the middle of the lane on two-lane roads. The goal is that the work can be able to be of assistance to the Swedish Road Administration regarding what can be done to ensure that milled rumble strips can be carried out considerably more on roads in the future. This work has studied the methods regardning rumble strips where the cost aspect also has been interesting. Also rumble strips on roads with a thin layer coating and surface treatment has been specifically studied. The work is divided into two parts, the first part describes the problem and provides insight into the topic milled rumble strips. Milled rumble strips in the Nordic countries have been studied. The second part, which is also the investigative part of the work consists of qualitative interviews with people at the Swedish Road Administration and the contractors who work with precisely milled rumble strips on the road. The result shows that the Swedish Road Administration is on track to solve the difficulties of getting new rumble strips carried out. One thing that is difficult with the milled rumble strips is how it should be handled. Throughout, it should be more clearly what the rules are. The rules today are actually written the same regardless of the asphalt properties. There have been rumble strips on roads with both surface treatment and thin-layer coating, where both results and impact of the rumble strip varies. There is disagreement within the Swedish Road Administration regarding which coverings that it is possible to do milled rumble strips in or not, and it would be of interest to make a proper investigation of which ones that can or can not. An alternative to the milled rumble strips that makes it necessary to not take any account of the coating type, is possibly a reverse rumble strip in the middle of the lane of two-lane roads. The study shows that a traditional cold milling machine is used to perform both Sinusräffla and Målillaräffla and the cost varies between 10-22 SEK/rm. (Less)
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author
Svensson, Sara
organization
year
type
M2 - Bachelor Degree
subject
keywords
mitträffling, metoder, räfflor, trafiksäkerhet, utförande
language
Swedish
id
5474221
alternative location
http://portal.ch.lu.se/Campus.NET/Services/Publication/Export.aspx?id=2850&type=doc
date added to LUP
2015-06-15 04:11:40
date last changed
2015-06-15 04:11:40
@misc{5474221,
  abstract     = {In order to increase the traffic safety on two-lane roads the Swedish Road Administration introduced new milled rumble strips in the middle of the lane. These rumble strips are a way to attract drivers attention if they are about to unintentionally leave the lane. The milled rumble strips cause both internal and external noise and vibration internally in the vehicle. The Swedish Road Administration have had trouble lately getting these grooves made on the roads where they want to have new milled rumble strips in the centre of two-lane roads. The purpose of this work is to examine the work of milled rumble stripes in the middle of the lane on two-lane roads. The goal is that the work can be able to be of assistance to the Swedish Road Administration regarding what can be done to ensure that milled rumble strips can be carried out considerably more on roads in the future. This work has studied the methods regardning rumble strips where the cost aspect also has been interesting. Also rumble strips on roads with a thin layer coating and surface treatment has been specifically studied. The work is divided into two parts, the first part describes the problem and provides insight into the topic milled rumble strips. Milled rumble strips in the Nordic countries have been studied. The second part, which is also the investigative part of the work consists of qualitative interviews with people at the Swedish Road Administration and the contractors who work with precisely milled rumble strips on the road. The result shows that the Swedish Road Administration is on track to solve the difficulties of getting new rumble strips carried out. One thing that is difficult with the milled rumble strips is how it should be handled. Throughout, it should be more clearly what the rules are. The rules today are actually written the same regardless of the asphalt properties. There have been rumble strips on roads with both surface treatment and thin-layer coating, where both results and impact of the rumble strip varies. There is disagreement within the Swedish Road Administration regarding which coverings that it is possible to do milled rumble strips in or not, and it would be of interest to make a proper investigation of which ones that can or can not. An alternative to the milled rumble strips that makes it necessary to not take any account of the coating type, is possibly a reverse rumble strip in the middle of the lane of two-lane roads. The study shows that a traditional cold milling machine is used to perform both Sinusräffla and Målillaräffla and the cost varies between 10-22 SEK/rm.},
  author       = {Svensson, Sara},
  keyword      = {mitträffling,metoder,räfflor,trafiksäkerhet,utförande},
  language     = {swe},
  note         = {Student Paper},
  title        = {Mitträffling på tvåfältsvägar - En kvalitativ undersökning om branschens åsikter och metoder},
  year         = {2015},
}