Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Milled rumble strips make roads safer

21.06.2005


A study by the Swedish Road and Transport Research Institute VTI shows that milled rumble strips at the centre of a two lane road are probably an excellent measure to reduce the number of head-on collisions which occur because tired and inattentive drivers inadvertently leave the lane they are driving in.



The study shows that one of the effects of milled rumble strips at the centre of the road is to make car drivers reduce their speed and keep further away from the centre of the road.

Milled rumble strips have been found to work well on Swedish roads which are not wide enough to have a central barrier such as a wire rope barrier. However, no effects have been found which cause changes in the behaviour of the drivers of heavy vehicles.


"Milled rumble strips help drivers through both the noise they experience and the vibration that is set up in the vehicle, the seat and the steering wheel. These signals may prevent drivers from inadvertently driving over the centre line because they are tired or their attention is distracted," says Anna Anund, a researcher at VTI.

Results from the study

* According to drivers, the greatest advantage of the milled rumble strips is that they warn drivers that they are, inadvertently, about to drive over the centre line (94%).

* Car drivers significantly reduced their speed by an average of 1.8 km/h at all survey positions.

* On average, car drivers drove 5 cm nearer the edge of the road when the road had milled rumble strips than when there were no rumble strips.

* 76% of the drivers replied that they would feel safer if there were rumble strips at the centre of the road.

* 83% said that they would feel safer because the strip would prevent them from inadvertently driving into the wrong lane.

* 88% thought that milled rumble strips are a good way to increase road safety.

The strips may also improve driver behaviour by making drivers decide not to cross the centre line on sections of the road where doing so is incompatible with road safety. In turn, this may cause a reduction in the number of overtaking and curve cutting manoeuvres.

The rumble strip selected for the study has been named the ’Målilla strip’. The strips have been milled at 1.2 m centres. They are 35 cm wide, 15 cm long and about 1.0 cm deep. The test section is on Highway 34 between Målilla and Hultsfred, and its length is14 km. The strips have been evaluated by traffic surveys, roadside interviews and observations.

| alfa
Further information:
http://www.vr.se
http://www.vti.se

More articles from Transportation and Logistics:

nachricht Tool helps cities to plan electric bus routes, and calculate the benefits
09.01.2017 | International Institute for Applied Systems Analysis (IIASA)

nachricht Realistic training for extreme flight conditions
28.12.2016 | Technical University of Munich (TUM)

All articles from Transportation and Logistics >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Breakthrough with a chain of gold atoms

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

Im Focus: DNA repair: a new letter in the cell alphabet

Results reveal how discoveries may be hidden in scientific “blind spots”

Cells need to repair damaged DNA in our genes to prevent the development of cancer and other diseases. Our cells therefore activate and send “repair-proteins”...

Im Focus: Dresdner scientists print tomorrow’s world

The Fraunhofer IWS Dresden and Technische Universität Dresden inaugurated their jointly operated Center for Additive Manufacturing Dresden (AMCD) with a festive ceremony on February 7, 2017. Scientists from various disciplines perform research on materials, additive manufacturing processes and innovative technologies, which build up components in a layer by layer process. This technology opens up new horizons for component design and combinations of functions. For example during fabrication, electrical conductors and sensors are already able to be additively manufactured into components. They provide information about stress conditions of a product during operation.

The 3D-printing technology, or additive manufacturing as it is often called, has long made the step out of scientific research laboratories into industrial...

Im Focus: Mimicking nature's cellular architectures via 3-D printing

Research offers new level of control over the structure of 3-D printed materials

Nature does amazing things with limited design materials. Grass, for example, can support its own weight, resist strong wind loads, and recover after being...

Im Focus: Three Magnetic States for Each Hole

Nanometer-scale magnetic perforated grids could create new possibilities for computing. Together with international colleagues, scientists from the Helmholtz Zentrum Dresden-Rossendorf (HZDR) have shown how a cobalt grid can be reliably programmed at room temperature. In addition they discovered that for every hole ("antidot") three magnetic states can be configured. The results have been published in the journal "Scientific Reports".

Physicist Dr. Rantej Bali from the HZDR, together with scientists from Singapore and Australia, designed a special grid structure in a thin layer of cobalt in...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Booth and panel discussion – The Lindau Nobel Laureate Meetings at the AAAS 2017 Annual Meeting

13.02.2017 | Event News

Complex Loading versus Hidden Reserves

10.02.2017 | Event News

International Conference on Crystal Growth in Freiburg

09.02.2017 | Event News

 
Latest News

Stingless bees have their nests protected by soldiers

24.02.2017 | Life Sciences

New risk factors for anxiety disorders

24.02.2017 | Life Sciences

MWC 2017: 5G Capital Berlin

24.02.2017 | Trade Fair News

VideoLinks
B2B-VideoLinks
More VideoLinks >>>