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 New players, standardization and digitalization for more rail freight transport
16.07.2018 | Fraunhofer-Institut für System- und Innovationsforschung (ISI)

nachricht A helping (Sens)Hand
11.04.2018 | Fraunhofer-Institut für Arbeitswirtschaft und Organisation IAO

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: Future electronic components to be printed like newspapers

A new manufacturing technique uses a process similar to newspaper printing to form smoother and more flexible metals for making ultrafast electronic devices.

The low-cost process, developed by Purdue University researchers, combines tools already used in industry for manufacturing metals on a large scale, but uses...

Im Focus: First evidence on the source of extragalactic particles

For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.

To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...

Im Focus: Magnetic vortices: Two independent magnetic skyrmion phases discovered in a single material

For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.

Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...

Im Focus: Breaking the bond: To take part or not?

Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.

A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...

Im Focus: New 2D Spectroscopy Methods

Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.

"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Leading experts in Diabetes, Metabolism and Biomedical Engineering discuss Precision Medicine

13.07.2018 | Event News

Conference on Laser Polishing – LaP: Fine Tuning for Surfaces

12.07.2018 | Event News

11th European Wood-based Panel Symposium 2018: Meeting point for the wood-based materials industry

03.07.2018 | Event News

 
Latest News

A smart safe rechargeable zinc ion battery based on sol-gel transition electrolytes

20.07.2018 | Power and Electrical Engineering

Reversing cause and effect is no trouble for quantum computers

20.07.2018 | Information Technology

Princeton-UPenn research team finds physics treasure hidden in a wallpaper pattern

20.07.2018 | Materials Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>