Biomedical technology

UAVs to deliver first aid drugs to emergency patients quickly

For patients suffering from sudden illnesses such as myocardial infarction and severe hypoglycemia, prompt administration of emergency medications is imperative, otherwise they may be at great risk of death. Actually, a large ...

Psychology & Psychiatry

Limit travel anxiety this holiday season

Holiday travel can be anxiety-inducing due to flight delays and heavy traffic. While disruptions are unavoidable, a Baylor College of Medicine expert provides tips on how to manage stress and anxiety during a busy travel ...

Health

Should we really do away with daylight saving time?

On Sunday, Nov. 6, parts of the world, including most of the United States and Canada, will participate in the annual ritual of setting their clocks an hour back to mark the end of daylight saving time.

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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