Traffic congestion
hideTraffic congestion is a condition on networks that occurs as use increases, and is characterized by slower speeds, longer trip times, and increased queueing. The most common example is the physical use of roads by vehicles. When traffic demand is great enough that the interaction between vehicles slows the speed of the traffic stream, congestion is incurred. As demand approaches the capacity of a road (or of the intersections along the road), extreme traffic congestion sets in. When vehicles are fully stopped for periods of time, this is colloquially known as a traffic jam.
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News tagged with traffic jams
Netherlands to levy 'green' road tax by the kilometre
Nov 13, 2009 |
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The Dutch government said Friday it wants to introduce a "green" road tax by the kilometre from 2012 aimed at cutting carbon dioxide emissions by 10 percent and halving congestion.
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Signal fading on radio traffic reports
Nov 27, 2009 |
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(AP) -- For more than 20 years, Mike Nolan was known to radio listeners as the "eye in the sky." He flew over Southern California freeways in his single-engine plane, reporting on the nation's worst traffic.
Murders, Traffic Deaths Connected
Dec 03, 2009 |
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If you want to know how many people are killed in car accidents in a particular U.S. state, look to its prisons. Regions with higher murder rates also tend to have a greater number of traffic fatalities, according to a new ...
Video spurs explosion of Internet traffic
Nov 18, 2009 |
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Internet traffic will have increased six fold by 2012 in a five-year period as more users view and post videos online, delegates at an Internet forum heard on Wednesday.
Exposure to both traffic, indoor pollutants puts some kids at higher risk for asthma later
Nov 24, 2009 |
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New research presents strong evidence that the "synergistic" effect of early-life exposure to both outdoor traffic-related pollution and indoor endotoxin causes more harm to developing lungs than one or the other exposure ...
Steadier Traffic Flow Improves Health of Local Infants, Researchers Say
Nov 17, 2009 |
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(PhysOrg.com) -- The creation of E-ZPass lanes over the past 15 years has significantly improved the health of newborn babies living near highways in the Northeast, according to a Columbia study. The researchers ...
Cisco releases Web security app for iPhone
Nov 20, 2009 |
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Cisco on Friday announced the release of a free iPhone application for anyone who wants to stay on top of the latest trojans, worms, or other threats marauding on the Internet.
Glitch snarls air traffic in latest woes for FAA
Nov 19, 2009 |
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(AP) -- For the second time in a little more than a year, a glitch at one of the two centers that handle flight plans for the nation's air travel system set off delays and cancellations for passengers around ...
Walking hazard: Cell-phone use -- but not music -- reduces pedestrian safety
Other Sciences / Social Sciences
Nov 16, 2009 |
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Two new studies of pedestrian safety found that using a cell phone while hoofing it can endanger one's health. Older pedestrians, in particular, are impaired when crossing a busy (simulated) street while speaking ...
Path to good health, less pollution is the sidewalk: report
Nov 09, 2009 |
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US pressure groups joined forces Monday to urge authorities to spend more to improve Americans' health and cut greenhouse gas emissions.
Hajj devil stoning ritual biggest swine flu risk
Nov 28, 2009 |
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(AP) -- Millions of Muslim pilgrims, many wearing surgical masks, jostled together shoulder-to-shoulder furiously casting pebbles at stone walls representing the devil Saturday - the hajj ritual of highest ...
List of search results for traffic jams
