Business

Air France gets EU green light for 4 bn euro aid

The EU authorised the French government on Tuesday to double its stake in Air France and inject up to four billion euros into the struggling airline whose revenues have been hit by the pandemic-induced drop in passenger traffic.

Business

EU, US make new attempt for data privacy deal

Europe and the United States will use a thaw in ties to strike a pact that would allow for the exchange of private data across the Atlantic, replacing previous agreements struck down by an EU court.

Computer Sciences

Optimization for resource management using multi-agent systems

Urban development is therefore becoming more important. The efficiency of existing real-world lift transport and road network systems can be measured through surveillance equipment such as cameras and global positioning system ...

Business

US air travel hits highest level since March 2020

Airports in the United States saw their largest number of passengers in a year on Friday, data showed, following a shuddering halt in travel brought on by the COVID-19 pandemic.

Business

Aeroflot logs heavy 2020 loss

Russia's flagship airline Aeroflot announced Wednesday heavy losses for 2020 as coronavirus-related restrictions grounded planes around the world.

Business

Cathay Pacific posts record loss, warns of long recovery

Hong Kong carrier Cathay Pacific said Wednesday it suffered a record $2.8 billion loss last year as the coronavirus pandemic wiped out demand for travel—and the airline warned of a long road to recovery ahead.

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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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