Business

Struggling airlines seek to stay in the skies

The airline industry holds its annual gathering by video conference next week under the shadow of the COVID-19 pandemic that has plunged the sector into a crisis that may yet claim more carriers.

Central Florida lands hub for Jetsons-like 'flying cars'

The nation's first regional hub for "flying cars" is being built in central Florida and once completed in five years, the vehicles will be able to take passengers from Orlando to Tampa in a half hour, officials said Wednesday.

Business

Emirates airline posts first loss in more than 30 years

Dubai-based Emirates airline on Thursday posted its first loss in more than three decades, saying it had been badly hit by the coronavirus lockdown that brought air transport to "a literal standstill".

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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.

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