Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:


Improved pavement markings can save lives


New Concordia study shows road safety could be enhanced by better roadway markings

As spring finally emerges after a ferocious winter, our battered roads will soon be re-exposed. While potholes and cracks might make news, a larger concern should be the deterioration to pavement markings, from yellow to white lines, which are a major factor in preventing traffic accidents.

A study from Concordia University, funded by Infrastructure Canada and published in Structure and Infrastructure Engineering, found that snowplows are the biggest culprit in erasing roadway markings.

The research team also examined the impact of salt and sand on the visibility of pavement markings. The conclusion: a simple switch in paint can save cars — and lives.

Using data from the Ontario and Quebec ministries of transportation and the municipalities of Montreal and Ottawa, Professor Tarek Zayed of Concordia’s Department of Building, Civil and Environmental Engineering measured the relationship between materials used in pavement markings, and their age and durability.

He also compared highways with city roads, examined traffic levels and took note of the types of vehicles involved. Finally, Zayed and his research team examined marking types such as highway centre lines, pedestrian crosswalks and traffic intersections.

They found snowploughs to be the worst on roads because they literally scrape paint off the streets. “Snow removal is the major contributing factor to wear and tear on pavement markings, because when snow is pushed off the road, part of the markings is taken off too,” says Zayed.

What can improve the chances of pavement markings surviving the winter? Zayed suggests that an upgrade to more expensive and durable epoxy paint might be more cost effective in the long run. Other options include paint tape and thermoplastic, although these are quite expensive.

He also suggests wider use of a technical device called a retroreflectometer to help assess the paint’s reflectivity and resulting effectiveness. “In the U.S., this standard has been in place for almost a decade,” he says, adding that minimum standards for reflectivity are used to signal when a road must be repainted.

Zayed also says Canadian roads are in desperate need of more studies. For example, while epoxy is known to be a more durable paint, since it is not yet widely used in Ontario and Quebec, more research is needed to show exactly how it holds up to stressors like salt and snow removal.

While several studies have been conducted in the central and southern United States to compare and evaluate the durability of pavement markings, Zayed points out that the findings don’t translate very well given the strikingly different weather conditions between warm versus seasonal climates.

Partners in research: This study, funded by Infrastructure Canada, was co-authored by Emad Elwakil, Ahmed Eweda and Tarek Zayed, members of the Department of Building, Civil and Environmental Engineering at Concordia University.

Learn more about Concordia’s Faculty of Engineering and Computer Science by checking out the latest edition of the faculty magazine.

Clea Desjardins | EurekAlert!
Further information:

Further reports about: Building Computer Engineering Environmental Infrastructure highways roads types

More articles from Studies and Analyses:

nachricht Diagnoses: When Are Several Opinions Better Than One?
19.07.2016 | Max-Planck-Institut für Bildungsforschung

nachricht High in calories and low in nutrients when adolescents share pictures of food online
07.04.2016 | University of Gothenburg

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

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

Im Focus: Novel light sources made of 2D materials

Physicists from the University of Würzburg have designed a light source that emits photon pairs. Two-photon sources are particularly well suited for tap-proof data encryption. The experiment's key ingredients: a semiconductor crystal and some sticky tape.

So-called monolayers are at the heart of the research activities. These "super materials" (as the prestigious science magazine "Nature" puts it) have been...

Im Focus: Etching Microstructures with Lasers

Ultrafast lasers have introduced new possibilities in engraving ultrafine structures, and scientists are now also investigating how to use them to etch microstructures into thin glass. There are possible applications in analytics (lab on a chip) and especially in electronics and the consumer sector, where great interest has been shown.

This new method was born of a surprising phenomenon: irradiating glass in a particular way with an ultrafast laser has the effect of making the glass up to a...

Im Focus: Light-driven atomic rotations excite magnetic waves

Terahertz excitation of selected crystal vibrations leads to an effective magnetic field that drives coherent spin motion

Controlling functional properties by light is one of the grand goals in modern condensed matter physics and materials science. A new study now demonstrates how...

Im Focus: New 3-D wiring technique brings scalable quantum computers closer to reality

Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.

"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...

Im Focus: Scientists develop a semiconductor nanocomposite material that moves in response to light

In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.

A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...

All Focus news of the innovation-report >>>



Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

Agricultural Trade Developments and Potentials in Central Asia and the South Caucasus

14.10.2016 | Event News

World Health Summit – Day Three: A Call to Action

12.10.2016 | Event News

Latest News

Prototype device for measuring graphene-based electromagnetic radiation created

28.10.2016 | Power and Electrical Engineering

Gamma ray camera offers new view on ultra-high energy electrons in plasma

28.10.2016 | Physics and Astronomy

When fat cells change their colour

28.10.2016 | Life Sciences

More VideoLinks >>>