Automotive

Tesla issues 2nd recall for obstructing pedestrian warning

Tesla is recalling nearly nearly 595,000 vehicles in the U.S., most for a second time, because a "Boombox" function can play sounds over an external speaker and obscure audible warnings for pedestrians.

Internet

Web surfing that feels instantaneous, even though it's not

If the coronavirus pandemic drove your life online, you've probably been there: Maybe you're using video chat to get work done or connect with far-flung friends. No matter how much bandwidth you have, the lag between one ...

Energy & Green Tech

On the way to climate-neutral road traffic in Switzerland

Road traffic is currently responsible for more than 30% of Switzerland's greenhouse gas emissions. Reducing these emissions is complex because the switch from fossil-based mobility to electricity-based mobility will only ...

Automotive

US agency opens probe into electric vehicle batteries

U.S. safety regulators have opened an investigation into electric and hybrid vehicle batteries after five automakers issued recalls due to possible defects that could cause fires or stalling.

Energy & Green Tech

New vehicles must average 40 mpg by 2026, up from 28 mpg

New vehicles sold in the U.S. will have to average at least 40 miles per gallon of gasoline in 2026, up from about 28 mpg, under new federal rules unveiled Friday that undo a rollback of standards enacted under President ...

Consumer & Gadgets

How e-scooters can safely operate in a city

E-scooters have become a familiar sight in cities worldwide in recent years, with many new companies renting them for use. But their arrival has also brought new safety concerns. Now, researchers from Chalmers University ...

Automotive

Traffic accidents significantly dropped during COVID-19 lockdown

Research from Rensselaer Polytechnic Institute shows that traffic accidents decreased by nearly half during the two-month period at the start of the COVID-19 pandemic when residents of most states were under a stay-at-home ...

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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