News tagged with traffic
Existing research shows that bicyclists who wear helmets have an 88 percent lower risk of brain injury, but researchers at Boston Children's Hospital found that simply having bicycle helmet laws in place showed a 20 percent ...
Pediatrics 2 hours ago | not rated yet | 0
Both fine-particle air pollution and noise pollution may increase a person's risk of developing cardiovascular disease, according to German researchers who have conducted a large population study, in which both factors were ...
Health May 20, 2013 | not rated yet | 0
Researchers at Queen's University Belfast have devised a 'magic bullet' nanomedicine which could become the first effective treatment for Acute Lung Injury or ALI, a condition affecting 20 per cent of all patients in intensive ...
Medical research May 15, 2013 | 4 / 5 (1) | 0
Maurizio Porfiri, an associate professor of mechanical engineering at the Polytechnic Institute of New York University (NYU-Poly), is best known for his work on biologically inspired robots that mimic the movement of schooling ...
Other May 16, 2013 | not rated yet | 0
(HealthDay)—The number of fatal crashes involving drivers distracted by cellphones is vastly under-reported in the United States, according to a new study.
Health May 09, 2013 | not rated yet | 0
(Medical Xpress)—Like a melody that keeps playing in your head even after the music stops, researchers at the University of Illinois's Beckman Institute have shown that the beat goes on when it comes to ...
Neuroscience Aug 28, 2012 | 5 / 5 (5) | 1 |
A groundbreaking new study shows that laws legalizing medical marijuana have resulted in a nearly nine percent drop in traffic deaths and a five percent reduction in beer sales.
Health Nov 29, 2011 | 4.9 / 5 (38) | 13 |
More than 270,000 pedestrians are killed on the world's roads each year, the World Health Organisation said Thursday, slamming decades of neglect in favour of vehicle transportation.
Health May 02, 2013 | not rated yet | 0
(Medical Xpress)—Exposure to noise, for example from road traffic, may adversely affect the cardiovascular system. Until now, underlying mechanisms linking noise to elevated cardiovascular risk have rarely been explored ...
Health May 02, 2013 | not rated yet | 0
Hospitals in large cities act as breeding grounds for the superbug MRSA prior to it spreading to smaller hospitals, a study suggests.
Diseases, Conditions, Syndromes May 14, 2012 | 5 / 5 (3) | 3 |
Treatment with an agent that blocks the oxidation of an important component of the mitochondrial membrane prevented the secondary damage of severe traumatic brain injury and preserved function that would otherwise have been ...
Neuroscience Aug 26, 2012 | 4 / 5 (1) | 0 |
(Medical Xpress)—For decades, no one worried much about the air quality inside people's homes unless there was secondhand smoke or radon present. Then scientists at the U.S. Department of Energy's Lawrence ...
Health Apr 11, 2013 | 3 / 5 (2) | 1 |
Researchers from the University of Exeter Medical School have for the first time identified the mechanism that protects us from developing uncontrollable fear.
Neuroscience Oct 05, 2012 | 4.7 / 5 (3) | 3 |
(Medical Xpress)—Even when at rest, the human body is a flurry of activity. Like a microscopic metropolis locked in a state of perpetual rush hour traffic, the trillions of cells that make us who we are work feverishly ...
Medical research Jan 11, 2013 | 4.3 / 5 (3) | 0 |
You come into contact every day with light-emitting diodes (LEDs) -- they illuminate alarm clocks, new televisions, traffic lights, and smartphone displays. Increasingly, you will see white-light versions ...
Health Oct 17, 2011 | 4.5 / 5 (8) | 6 |
Traffic on roads may consist of pedestrians, ridden or herded animals, vehicles, streetcars and other conveyances, either singly or together, while using the public way for purposes of travel. Traffic laws are the laws which govern traffic and regulate vehicles, while rules of the road are both the laws and the informal rules that may have developed over time to facilitate the orderly and timely flow of traffic.
Organized traffic generally has well-established priorities, lanes, right-of-way, and traffic control at intersections.
Traffic is formally organized in many jurisdictions, with marked lanes, junctions, intersections, interchanges, traffic signals, or signs. Traffic is often classified by type: heavy motor vehicle (e.g., car, truck); other vehicle (e.g., moped, bicycle); and pedestrian. Different classes may share speed limits and easement, or may be segregated. Some jurisdictions may have very detailed and complex rules of the road while others rely more on drivers' common sense and willingness to cooperate.
Organization typically produces a better combination of travel safety and efficiency. Events which disrupt the flow and may cause traffic to degenerate into a disorganized mess include: road construction, collisions and debris in the roadway. On particularly busy freeways, a minor disruption may persist in a phenomenon known as traffic waves. A complete breakdown of organization may result in traffic jams and gridlock. Simulations of organized traffic frequently involve queuing theory, stochastic processes and equations of mathematical physics applied to traffic flow.
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