Engineering
Every day, Americans travel on roads, bridges and highways without considering the safety or reliability of these structures. Yet much of the transportation infrastructure in the U.S. is outdated, deteriorating and badly ...
Nov 12, 2020
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Business
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".
Nov 12, 2020
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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.
Nov 12, 2020
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Automotive
Honda on Wednesday won approval to sell Level 3 autonomous cars in Japan, in what the automaker and Japanese authorities said was a world-first.
Nov 11, 2020
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Business
Nearly 200 European airports risk insolvency in the coming months if passenger traffic does not recover, a trade association warned on Tuesday, as nations contemplate further lockdowns to combat a second wave of the coronavirus ...
Oct 27, 2020
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Business
Airline industry revenues are expected to remain 46 percent lower in 2021 than the $838 billion booked in the last pre-coronavirus year of 2019, industry body IATA said Tuesday in a marked worsening of its forecasts.
Oct 27, 2020
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Automotive
Vehicle manufacturers offer smart features such as lane and braking assist to aid drivers in hazardous situations when human reflexes may not be fast enough. But most options only provide immediate benefits to a single vehicle.
Sep 29, 2020
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Business
Global airlines have revised traffic forecasts lower, sector federation IATA said Tuesday, warning that hundreds of thousands of jobs are at risk without more state aid.
Sep 29, 2020
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Business
Six months since the coronavirus pandemic upended the global airline industry, Ethiopian Airlines is facing a heavy toll: more than $1 billion in lost revenue, to say nothing of 850 infected employees.
Sep 29, 2020
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Business
With the coronavirus crisis putting a chill on travel, European airlines are reducing fares to attract passengers and fill the planes that are still flying.
Sep 27, 2020
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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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