Featured Research

from universities, journals, and other organizations

'Smart' Traffic Sign Stops Collisions

Date:
July 30, 2007
Source:
American Technion Society
Summary:
Researchers have developed a "smart" traffic sign that helps drivers make correct decisions and avoid collisions at traffic intersections that lack traffic signals. The device consists of two cameras mounted on a pole at the intersection - one facing the main road and the other the secondary road. A computer located below constantly processes data it receives from the cameras. When a collision risk is identified, flashing lights on two yield signs at the intersection are activated to alert approaching drivers.

Researchers from the Transportation Research Institute at the Technion-Israel Institute of Technology have developed a "smart" traffic sign that helps drivers make correct decisions and avoid collisions at traffic intersections that lack traffic signals.

Related Articles


The device consists of two cameras mounted on a pole at the intersection - one facing the main road and the other the secondary road. A computer located below constantly processes data it receives from the cameras. When a collision risk is identified, flashing lights on two yield signs at the intersection are activated to alert approaching drivers.

According to system developer Dr. Yotam Abramson, accidents at intersections without traffic lights occur when drivers coming from the secondary road do not notice the traffic sign and are not aware that they do not have the right of way. Another cause of accidents can is when drivers notice the traffic sign but do not correctly internalize the information.

"In both cases, the driver makes the incorrect decision," says Abramson. "The assumption is that the flashing light will draw the driver's attention to the sign and increase his alertness."

The device is currently being tested at a four-way urban intersection in Tel Aviv. The intersection has limited visibility and high-speed access from the main road, and differentiating between the main road and the secondary road is difficult. At such intersections, drivers do not have an intuitive understanding of right of way, which makes noticing and understanding the signs even more critical.

The researchers believe the device will reduce accidents and near-accidents at the intersection, without impeding traffic flow on the main road.

They are also working on a "smart" traffic light activated when it identifies a driver who is about to cross an intersection against a red light. In such a case, the light will either flash or delay the green light in the other direction. According to Abramson, the system would also serve as a traffic violation camera.

"We are developing a 'smart infrastructure' that integrates computers and mechanization with transportation systems," says Transportation Research Institute head Prof. David Mahalel.

The National Transportation Safety Authority is financing the research, with assistance from the Tel Aviv transportation division.


Story Source:

The above story is based on materials provided by American Technion Society. Note: Materials may be edited for content and length.


Cite This Page:

American Technion Society. "'Smart' Traffic Sign Stops Collisions." ScienceDaily. ScienceDaily, 30 July 2007. <www.sciencedaily.com/releases/2007/07/070727191521.htm>.
American Technion Society. (2007, July 30). 'Smart' Traffic Sign Stops Collisions. ScienceDaily. Retrieved November 23, 2014 from www.sciencedaily.com/releases/2007/07/070727191521.htm
American Technion Society. "'Smart' Traffic Sign Stops Collisions." ScienceDaily. www.sciencedaily.com/releases/2007/07/070727191521.htm (accessed November 23, 2014).

Share This


More From ScienceDaily



More Matter & Energy News

Sunday, November 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Microsoft Adds Robot Guards, Ushers In Sci-Fi Apocalypse

Microsoft Adds Robot Guards, Ushers In Sci-Fi Apocalypse

Newsy (Nov. 23, 2014) Microsoft has robotic security guards working at its Silicon Valley Campus. Video provided by Newsy
Powered by NewsLook.com
Toyota's Hydrogen Fuel-Cell Green Car Soon Available in the US

Toyota's Hydrogen Fuel-Cell Green Car Soon Available in the US

AFP (Nov. 21, 2014) Toyota presented its hydrogen fuel-cell compact car called "Mirai" to US consumers at the Los Angeles auto show. The car should go on sale in 2015 for around $60.000. It combines stored hydrogen with oxygen to generate its own power. Duration: 01:18 Video provided by AFP
Powered by NewsLook.com
Google Announces Improvements To Balloon-Borne Wi-Fi Project

Google Announces Improvements To Balloon-Borne Wi-Fi Project

Newsy (Nov. 21, 2014) In a blog post, Google said its balloons have traveled 3 million kilometers since the start of Project Loon. Video provided by Newsy
Powered by NewsLook.com
Raw: Paralyzed Marine Walks With Robotic Braces

Raw: Paralyzed Marine Walks With Robotic Braces

AP (Nov. 21, 2014) Marine Corps officials say a special operations officer left paralyzed by a sniper's bullet in Afghanistan walked using robotic leg braces in a ceremony to award him a Bronze Star. (Nov. 21) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins