In cities, the uniform and low speed levels simplify the setup of synchronized traffic signals. Outside urban areas this is a bigger challenge: The travel speeds vary more and the distances between the traffic lights are ...
Engineering
Jun 21, 2013
0
0
Vehicles and infrastructures exchanging information with one another and notifying drivers about dangers and traffic situations make traffic safer and more efficient. This has been proven by one of the biggest field tests ...
Engineering
Jun 20, 2013
0
0
(Phys.org) —If you've been lucky enough to catch all the green lights as you drive down a busy street, you may have been benefiting from intentional synchronization called a "green wave." The green wave concept has been ...
Streetlights illuminate the night, shining upon roadways and sidewalks across the world, but these ubiquitous elements of the urban environment are notoriously inefficient and major contributors to light pollution that washes ...
Optics & Photonics
Apr 24, 2013
12
1
Small suburban shopping centres are disproportionately threatened by policies on climate change and traffic congestion that discourage consumers from using their cars, research shows.
Economics & Business
Apr 11, 2013
0
0
You've probably seen it happen. You're driving your car and you come to a stop at the traffic lights. You're mindful of traffic infringement fines and public safety, then someone on a bike rides past you, unconcerned, straight ...
Social Sciences
Mar 26, 2013
36
0
Recycling, reusing and reducing are all ways in which Europeans are assisting in efforts to reduce greenhouse gas (GHG) emissions. It is a far cry from the days when we threw everything away without thought. Now we know it ...
Energy & Green Tech
Jan 7, 2013
0
0
(Phys.org)—Researchers from Toshiba and the Department of Engineering have perfected a technique that offers a less expensive way to ensure the security of high-speed fibre-optic cables, protecting communication networks ...
Quantum Physics
Dec 5, 2012
0
0
(Phys.org)—In many of the nation's traffic lights, light-emitting diodes or LEDs with their brighter light and longer life have replaced standard bulbs. But knowing when to replace the signal heads has remained a guessing ...
Engineering
Sep 24, 2012
1
0
A couple of years ago, Hesham Rakha misjudged a yellow traffic light and entered an intersection just as the light turned red. A police officer handed him a ticket.
Other
Sep 11, 2012
11
6
