Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Traffic navigation systems linked to accident risk

01.08.2003


Swift or safe? That may be the question drivers with navigation systems ask themselves in future.

A new study by researchers at the University of Toronto Intelligent Transportation Systems (ITS) Centre and Testbed suggests in-car systems, designed to guide drivers around traffic jams and accidents quickly, could actually cause a temporary surge in the risk of accidents. "Discovering that traveller information systems may be good for travel time but not for overall safety was shocking because they are generally supposed to provide benefits," says Professor Baher Abdulhai, the director of the ITS Centre and Testbed in the Department of Civil Engineering.

Using computer simulations of route guidance systems, Abdulhai’s team found accident risks peaked immediately after drivers were informed of traffic congestion and changed their routes. "There was an increased level of activity as people ’bailed out’ to bypass congestion," says Abdulhai - for example, as drivers left a jammed freeway for city streets and encountered accident-prone intersections. However, because drivers reach their destination sooner, the accompanying drop in accident risk eventually counterbalances the earlier surge.



When Abdulhai ran the simulation adding safety measures as criteria for selecting routes, such as a route involving the fewest number of turns, the accident risk dropped about 10 per cent. Traffic-responsive guidance systems could incorporate such safety-conscious measures in roughly a year, he says. The study, which was published in the July/August issue of the Journal of Transportation Engineering, received significant funding from private and public partners and the University of Toronto.

Contact: Professor Baher Abdulhai, tel. (+1) 416-946-5036, baher@ecf.utoronto.ca

Nicolle Wahl | EurekAlert!
Further information:
http://www.utoronto.ca

More articles from Transportation and Logistics:

nachricht From parking garage to smart multi-purpose garage
19.07.2017 | Fraunhofer-Institut für Arbeitswirtschaft und Organisation IAO

nachricht Efficient and intelligent: Drones get to grips with planning the delivery of goods
12.07.2017 | Alpen-Adria-Universität Klagenfurt

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: 3-D scanning with water

3-D shape acquisition using water displacement as the shape sensor for the reconstruction of complex objects

A global team of computer scientists and engineers have developed an innovative technique that more completely reconstructs challenging 3D objects. An ancient...

Im Focus: Manipulating Electron Spins Without Loss of Information

Physicists have developed a new technique that uses electrical voltages to control the electron spin on a chip. The newly-developed method provides protection from spin decay, meaning that the contained information can be maintained and transmitted over comparatively large distances, as has been demonstrated by a team from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute. The results have been published in Physical Review X.

For several years, researchers have been trying to use the spin of an electron to store and transmit information. The spin of each electron is always coupled...

Im Focus: The proton precisely weighted

What is the mass of a proton? Scientists from Germany and Japan successfully did an important step towards the most exact knowledge of this fundamental constant. By means of precision measurements on a single proton, they could improve the precision by a factor of three and also correct the existing value.

To determine the mass of a single proton still more accurate – a group of physicists led by Klaus Blaum and Sven Sturm of the Max Planck Institute for Nuclear...

Im Focus: On the way to a biological alternative

A bacterial enzyme enables reactions that open up alternatives to key industrial chemical processes

The research team of Prof. Dr. Oliver Einsle at the University of Freiburg's Institute of Biochemistry has long been exploring the functioning of nitrogenase....

Im Focus: The 1 trillion tonne iceberg

Larsen C Ice Shelf rift finally breaks through

A one trillion tonne iceberg - one of the biggest ever recorded -- has calved away from the Larsen C Ice Shelf in Antarctica, after a rift in the ice,...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Closing the Sustainability Circle: Protection of Food with Biobased Materials

21.07.2017 | Event News

»We are bringing Additive Manufacturing to SMEs«

19.07.2017 | Event News

The technology with a feel for feelings

12.07.2017 | Event News

 
Latest News

Ultrathin device harvests electricity from human motion

24.07.2017 | Power and Electrical Engineering

Scientists announce the quest for high-index materials

24.07.2017 | Materials Sciences

ADIR Project: Lasers Recover Valuable Materials

24.07.2017 | Materials Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>