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.
Nov 29, 2011
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Monash University research examined the effect of recreational cannabis sales (RCS) on traffic fatalities in three US states where it was legalised—Colorado (legalised 2014), Washington (2014), and Oregon (2015), and nine ...
Feb 5, 2019
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The human body is incredibly resilient. When you donate a pint of blood, you lose about 3.5 trillion red blood cells, but your body quickly replaces them. You can even lose large chunks of vital organs and live. For example, ...
Oct 6, 2017
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(Medical Xpress) -- A new study presented at the 162nd Meeting of the Acoustical Society of America shows that students testing scores are negatively affected by background noise, but not the noise you would expect. The background ...
(HealthDay)—More Americans now commit suicide than die in car crashes, making suicide the leading cause of injury deaths, according to a new study.
Sep 20, 2012
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Reasons underlying hesitancy to get vaccinated against COVID-19 may be associated with increased risks of traffic accidents according to a new study in The American Journal of Medicine. Researchers found that adults who neglect ...
Dec 12, 2022
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Children and adolescents with posttraumatic stress disorder (PTSD) can be successfully treated with only a few hours of EMDR or cognitive behavioral writing therapy (CBWT). This is the finding of a new research paper by the ...
Jun 29, 2017
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Restricting speed limits to 20 miles per hour (mph) in town and city centers doesn't seem to reduce road traffic collisions, casualties, or driver speed, finds a 3-year study of its rollout in one major capital city, published ...
Nov 15, 2022
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(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 the human visual ...
Aug 28, 2012
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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 of LEDs becoming ...
Oct 17, 2011
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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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