News tagged with traffic

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Justice Department says Shire will pay $56.5M fine

The U.S. Department of Justice said Wednesday that Irish drugmaker Shire will pay $56.5 million to settle allegations it broke the law in promoting five different drugs, including its attention deficit disorder drugs Adderall ...

Sep 24, 2014
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Correct seat belt use saves children's lives

9 out of 10 children are seriously or fatally injured in traffic accidents because they are incorrectly restrained or because of loose objects in cars. Correct use of safety equipment will save more lives, ...

Aug 06, 2014
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Marijuana use involved in more fatal accidents in Colorado

The proportion of marijuana-positive drivers involved in fatal motor vehicle crashes in Colorado has increased dramatically since the commercialization of medical marijuana in the middle of 2009, according to a study by University ...

May 15, 2014
popularity 2.9 / 5 (10) | comments 4

Tracking flu levels with Wikipedia

Can monitoring Wikipedia hits show how many people have the flu? Researchers at Boston Children's Hospital, USA, have developed a method of estimating levels of influenza-like illness in the American population by analysing ...

Apr 17, 2014
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Traffic

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.

This text uses material from Wikipedia licensed under CC BY-SA