An anonymous reader quotes a report from The Verge: After bringing 4G and 5G connectivity to the Underground, London's public transport authority has started scolding noisy passengers who subject everyone to music and calls blasting out of their phones. A new poster campaign launched by Transport for London (TfL) this week encourages customers to wear headphones when watching or listening to content on their devices to reduce disruption for other commuters. "Please don't disturb others with loud music or calls when traveling on the network," reads the "Headphones On" poster. The posters are already being displayed on the Elizabeth rail line, according to TfL, and will expand to bus, Docklands Light Railway, London Overground, London Underground, and London Tram services from October. The campaign targets headphone dodgers as data coverage becomes more available across the underground rail network, making it easier for passengers to stream content and make calls on the go. People who do so without donning headphones are annoying other commuters, however, with TfL research showing that 70 percent of 1,000 surveyed customers reported loud music and phone calls disrupting their journeys. "The vast majority of Londoners use headphones when traveling on public transport in the capital, but the small minority who play music or videos out loud can be a real nuisance to other passengers and directly disturb their journeys," says London's deputy transport mayor, Seb Dance. "TfL's new campaign will remind and encourage Londoners to always be considerate of other passengers."

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Amtrak's new 160 mph tilting Acela trains have debuted on the Northeast Corridor, offering smoother rides, upgraded interiors, faster Wi-Fi, and 27% more seating capacity. However, "they don't complete the journey any faster than the old trains," reports The Independent. From the report: Acela runs from Washington, DC's Union Station to Boston via Philadelphia, New York Penn Station, New Haven, and Providence. It's a total distance of 457 miles, with the fastest next-gen Acela journey being six hours and 43 minutes, five minutes slower than the quickest end-to-end time offered by the old Acela trains, introduced in 2000. However, this may be because, as is common practice with new trains the world over, Amtrak is scheduling longer dwell times at stations so staff and passengers can adjust to them. The next-gen sets have a top service speed that's 10mph faster -- though this can only be achieved on certain sections of the mostly 110mph route -- and an enhanced "anticipative" tilting system that allows for higher speeds through curves.

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Stellantis has put its fully developed Level 3 driver-assistance system on hold due to high costs, technical hurdles, and weak consumer demand. Reuters reports: As recently as February, Stellantis said its in-house system, which is part of the AutoDrive program, was ready for deployment and a key pillar of its strategy. The company said the system, which enables drivers to have their hands off the wheel and eyes off the road under certain conditions, would allow them to temporarily watch movies, catch up on emails, or read books. That Level 3 software was never launched, the company confirmed to Reuters. But it stopped short of saying that the program was canceled. "What was unveiled in February 2025 was L3 technology for which there is currently limited market demand, so this has not been launched, but the technology is available and ready to be deployed," a Stellantis spokesperson said. The three sources, however, said that the program was put on ice and is not expected to be deployed. When asked how much time and money was lost on the initiative, Stellantis declined to say, responding that the work done on AutoDrive will help support its future versions. [...] Stellantis said it is leaning on aiMotive, a tech startup it acquired in 2022, to deliver the next generation of the AutoDrive program. Stellantis declined to say when that program would be ready for market or if it would include Level 3 capability.

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An anonymous reader quotes a report from Ars Technica: Greenhouse gas reduction is no longer a priority for the US government, but if you're looking for a new vehicle and want to buy something with the lowest life cycle carbon emissions, you're best off looking for a compact with a small battery. That's one of the findings from a group at the University of Michigan of a comprehensive study that calculates the overall cradle-to-grave carbon impact for different types of vehicles, including factors like powertrain options, location (within the country), and use patterns. Even better, they built a tool you can use yourself. The study, published in Environmental Science and Technology, compares internal combustion engine powertrains with hybrid, 35- and 50-mile range plug-in hybrids, and 200-mile, 300-mile, and 400-mile battery electric powertrains across compact and midsize sedans, small and midsize SUVs, and pickup trucks, using a life cycle assessment model developed by Argonne National Laboratory and data of model year 2025 vehicles from the Environmental Protection Agency. If you expected that a gas-powered pickup truck would have the biggest carbon footprint, you'd be right. With a driving profile of 43 percent city driving and the rest highways (no cargo), a pickup will emit about 486 g CO2e per mile. Compared to that, a compact electric sedan with a 200-mile battery has just 17 percent of the life cycle emissions and is responsible for just 81 g CO2e per mile. A short-range electric pickup -- maybe that Slate that so many are salivating over -- is nearly as good, with a footprint that's only 25 percent the size of the gas pickup truck. On the other hand, hybrid powertrains (the kind that don't plug in) only reduce life cycle carbon compared to internal combustion alone by a modest amount -- between 11 and 13 percent, depending on the vehicle class. Plug-in hybrids with 35 miles of range can reduce emissions compared to plain combustion by 53-56 percent; with 50-mile batteries the reduction is 56-60 percent, assuming the PHEVs were driven in electric mode for 58 percent and 69 percent of the time, respectively. When it comes to BEVs, the smallest battery pack always has the least environmental impact. BEV powertrains with 400 miles of range have lifecycle emissions that are 67-69 percent lower than an ICE powertrain in the same vehicle. For 300-mile BEVs, this is an 81-83 percent reduction. A 200-mile BEV can be expected to contribute just 25-26 percent as much CO2e as an equivalent gas-burning vehicle would. That's not because EVs with big batteries are inefficient -- far from it -- but because making a battery for an EV is a very energy-intensive process. Most emissions from internal combustion engine (92 percent) and hybrid (89 percent) vehicles come from their use on the roads. But this changes once you start adding significant kWh-worth of battery. For PHEVs, the use phase is more like 73-80 percent, and for BEVs, it's just 48-60 percent, depending on the size of the batteries. The researchers also modeled different driving behaviors, including the use cases of someone who uses their vehicle just to commute and run errands; the "occasional road-tripper," most of whose needs are met by a small battery; and a contractor or someone else who has to drive a lot for work, with varying amounts of cargo onboard. As we've known for some time, where you get your energy from affects how clean your EV will be, and switching from gasoline to an EV has more of an impact in Seattle (which relies on hydropower) versus Cincinnati (where the electricity comes from burning coal), for both PHEVs and BEVs.

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Archer Aviation is "the official air taxi partner" of the 2028 Olympic Games in Los Angeles, Electrek reported in May. In June it entered "a key development phase ahead of full-fledged flight certification and commercial operations" by completing a piloted flight in its flagship Midnight aircraft, "demonstrating a conventional takeoff and landing instead of vertical (it can do both)." During that flight, which took place in the skies above Salinas, California, the eVTOL achieved a top speed of 125 mph and a maximum altitude of 1,500 feet above ground level. Most recently, Archer has taken its Midnight eVTOL above Salinas again, achieving its longest flight to date. Per Archer, the recent successful flight in California lasted 31 minutes, and the piloted Midnight eVTOL traveled 55 miles — the company's longest recorded flight yet with a pilot onboard... [Again with speeds exceeding 125 mph] United Airlines CFO Mike Leskinen, who led the airline's early investment in Archer Aviation, was present at the test facility to witness the milestone flight. Leskinen congratulated the Archer team on its longest eVTOL flight and expressed his satisfaction with the Midnight aircraft's quiet operation. Their aircraft even "reached speeds of nearly 150 miles per hour" the week before, according to Archer's announcement. They're calling it another milestone "as the company advances toward FAA certification in the U.S. and near-term commercialization in the United Arab Emirates." And Archer's Founder/CEO said crossing the 50-mile mark at speed "is another clear step toward commercialization that shows the maturity of our program."

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Last weekend New Zealand experienced an hour-long air traffic control failure that disrupted flights, leaving five plans circling and four others unable to take off, according to Radio New Zealand. The country's sole air traffic service provider, Airways, now says it was caused by a software glitch when flight data was unable to be transferred between systems: [Airways chief executive James Young told Morning Report] "We noticed that was not occurring as it should and as a result of that our air traffic controllers took measures to manage traffic, either by holding on the ground or in an air hold." Airways operated a modern air traffic control system that involved back up systems but Young said they were not instantaneous and it took time to validate flight information data. "At no point did we lose control of all aircraft. We were able to communicate with all aircraft and we had line of sight of all aircraft," Young said. He said flights in the New Zealand air space were held, put into a hold with two eventually continuing on and three returning to origin... "What we couldn't do was process any changes to the flight path during the period of the outage, which lasted for about one hour." Thanks to Slashdot reader twosat for sharing the news.

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Waymo has received its first permit from the New York City Department of Transportation to begin testing autonomous vehicles in Manhattan and Downtown Brooklyn, marking the city's first official rollout of self-driving car trials. The program will initially deploy up to eight vehicles with safety drivers through late September, with the potential to extend and expand into other boroughs. CNBC reports: New York state law requires the company to have a driver behind the wheel to operate. "We're a tech-friendly administration and we're always looking for innovative ways to safely move our city forward," [Mayor Eric Adams] said in a release. "New York City is proud to welcome Waymo to test this new technology in Manhattan and Brooklyn, as we know this testing is only the first step in moving our city further into the 21st century." The news comes just two months after the company said it filed permits to test its cars in the city with a trained specialist behind the wheel. [...] As part of the permit, Waymo must regularly meet and report data to DOT and work closely with law enforcement and emergency services.

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An anonymous reader quotes a report from Ars Technica: Time and again, surveys and studies show that fears and concerns about charging are the main barriers standing in the way of someone switching from gas to EV. A new market research study by Telemetry Vice President Sam Abuelsamid confirms this, as it analyzes the charging infrastructure needs over the next decade. And one of the biggest hurdles -- one that has gone mostly unmentioned across the decade-plus we've been covering this topic -- is all the junk clogging up Americans' garages. lThat's because, while DC fast-charging garners all the headlines and much of the funding, the overwhelming majority of EV charging is AC charging, usually at home -- 80 percent of it, in fact. People who own and live in a single family home are overrepresented among EV owners, and data (PDF) from the National Renewable Energy Laboratory from a few years ago found that 42 percent of homeowners park near an electrical outlet capable of level 2 (240 V) AC charging. But that could grow by more than half (to 68 percent of homeowners) if those homeowners changed their parking behavior, "most likely by clearing a space in their garage," the report finds. "90 percent of all houses can add a 240 V outlet near where cars could be parked," said Abuelsamid. "Parking behavior, namely whether homeowners use a private garage for parking or storage, will likely become a key factor in EV adoption. Today, garage-use intent is potentially a greater factor for in-house charging ability than the house's capacity to add 240 V outlets." Creating garage space would increase the number of homes capable of EV charging from 31 million to more than 50 million. And when we include houses where the owner thinks it's feasible to add wiring, that grows to more than 72 million homes. And that's far more than Telemetry's most optimistic estimate of U.S. EV penetration for 2035, which ranges from 33 million to 57 million EVs on the road 10 years from now.

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Denmark's PostNord will end centuries of letter delivery as digitalization and high postage costs make physical mail nearly obsolete. The BBC reports: The steep decline in letter volumes has been driven largely by digitalization, and PostNord announced in March that it will cease letter services at the end of the year. It will bring to an end four centuries of letter deliveries by the state-owned operation. A third of its workforce is being let go, as it sheds 2,200 positions in its loss-making letter arm. Instead it will focus on its profitable parcel business, creating 700 new roles. "Danes hardly receive any letters anymore. It's been going down for years and years," says Kim Pedersen, chief of PostNord Denmark. "They're receiving one letter a month on average, it's not a lot." "On the contrary, Danes love to shop online," he adds. "Global e-commerce is growing significantly, and we are moving with it." Fifteen years ago, PostNord operated several enormous letter-sorting facilities, but now there's just one on the western outskirts of Copenhagen. Since 2000, the volume of letters the business handles has declined by more than 90%, from around 1.4 billion to 110 million last year, and it continues to fall rapidly. As PostNord prepares to cease letter deliveries, 1,500 of its red post boxes are being removed from Danish streets. However, few locals in the capital appear to use them much. From email and cashless mobile payments, to digital health cards carried by smartphone, there's an app for almost everything in Denmark - and it's one of the world's most digitalized nations, second only to South Korea, according to the OECD's 2023 Digital Government Index. The Danish government has embraced a "digital by default" policy, and for more than a decade correspondence with the public has been carried out electronically. "We are facing this natural evolution of a digitalized society, earlier than maybe some other countries," Mr Pedersen explains. "In Denmark, we are maybe five or 10 years ahead." The high cost of sending a letter in Denmark is also a contributing factor behind its decline. In 2024, a new law opened up the postal market to private competition and took away its exemption from the country's 25% rate of VAT, so the price of a PostNord stamp jumped to 29 Danish krone ($4.55) per letter. "That made [volumes] drop even further faster," Mr Pedersen points out. The report notes that private firm DAO will take over nationwide letter deliveries in Denmark after PostNord exits. However, concerns remain that elderly citizens and rural residents may struggle with fewer post boxes and reduced service quality. Both the advocacy group DaneAge and the 3F Postal Union warn the transition could disproportionately affect vulnerable populations.

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14 months ago a jury ruled against Boeing, awarding $81 million in damages to failed electric airplane startup Zunum. "Zunum alleged that Boeing, while ostensibly investing seed money to get the startup off the ground, stole Zunum's technology and actively undermined its attempts to build a business," the Seattle Times reported at the time. But two months later that verdict was overturned, Reuters reports, with U.S. District Judge James Robart deciding that Zunum "did not adequately identify its secrets or show that they derived their value from being kept secret." And then three days ago a U.S. appeals court reinstated the original $81 million award, reversing that district judge's decision and "rejecting his finding that the information Boeing allegedly stole was not entitled to trade-secret protection." [T]he district court erred in concluding that "Zunum failed to identify any of its alleged trade secrets with sufficient particularity"... Here, the court rejected Zunum's repeated attempts to introduce comprehensive trade secret definitions into evidence and instead provided the jury with a court-created exhibit enumerating Zunum's alleged trade secrets with a short description of each. Zunum's witnesses identified the trade secrets by number, provided a basic explanation of each, and used exhibits and demonstratives to exemplify information comprising specific trade secrets. "internal Boeing communications introduced at trial suggesting that Boeing intended to modify its own in-house designs, methods, and strategies to incorporate information from certain Zunum trade secrets..." according to the new ruling. "Under the parties' agreement, Boeing was not permitted to use Zunum's confidential information for any reason other than to manage its investment in Zunum." Reuters adds that "A spokesperson for Boeing declined to comment on the appeals court's decision" One final note: The appeals court also ordered the case to be assigned to a new judge after Robart revealed that his wife had acquired Boeing stock through a retirement savings account during the litigation. Judge Robart had called that an "error". (And judicial ethics experts interviewed by Business Insider in 2024 "characterized Robart's trades and delayed disclosure to the parties as a minor issue," they reported Thursday.) But Thursday's ruling notes that the delayed disclosure "taken together with the district court's consistent rulings in Boeing's favor during and after trial, could give an objective observer reason to question the district judge's impartiality in further proceedings."

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From the French newspaper Le Monde: Odorless, quiet, sustainable. On the last day of July, passengers boarded Barcelona's V3 bus line with no idea where its fuel came from. Written in large letters on the bus facade, just below its name "Nimbus," a sign clearly stated: "This bus runs on biomethane produced from eco-factory sludge." Still, the explanation was likely too vague for most to grasp its full meaning. The moist matter from wastewater treated at the Baix Llobregat treatment plant was used to produce the biomethane. In other words: the human waste of more than 1.5 million residents of the Catalan city.

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Slashdot reader darwinmac writes: Volkswagen is offering a subscription model for extra horsepower on its ID.3 electric cars. Want to bump your ride from the standard 201 bhp to the full 228 bhp? That will be about £16.50 per month or £165 per year, or a one-time £649 "lifetime" fee that is tied to the car, not you. If you sell it, you have to pay again. VW defended this to the BBC by saying you are basically paying for a sportier experience without buying a higher powered model upfront, calling it "nothing new." Nothing changes mechanically. You are just paying VW to essentially flip a boolean somewhere in the car's software.

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An anonymous reader quotes a report from CleanTechnica: In a sharp rebuke to the anti-electrification agenda in the US, global EV sales are up 27% over last year, with some legacy automakers -- but not all -- indicating the potential for a successful transition to electric mobility. CleanTechnica has spilled much ink on the pace of plug-in hybrid and full EV adoption, and the latest report from the UK firm Rho Motion (a branch of the price reporting agency Benchmark Mineral Intelligence) adds some fresh insights. Covering the first seven months of 2025, earlier today Rho Motion totaled up more than 10.7 million EVs sold for a "robust" 27% increase over the same period last year, with China leading the pack by a wide margin. Europe also contributed to the overall robustness. Germany and the UK racked up impressive gains and Italy also turning in a mentionable performance. "The European EV market has grown by 30% year-to-date, with strong momentum in both battery electric vehicles (BEVs) and plug-in hybrids (PHEVs), up 30% and 32% respectively," Rho Motion summarized. "In contrast, North America's growth has been muted so far in 2025, with the US facing policy headwinds and Canada seeing a slowdown," Rho Motion Data Manager Charles Lester observed. "We expect a short-term lift in US demand ahead of the IRA consumer tax credit deadline in September, followed by a likely dip," Lester added. That short-term lift won't help North America catch up to Europe [...] Rho Motion's EV sales snapshot shows the recent gains: Global: 10.7 million, +27% China: 6.5 million, +29% Europe: 2.3 million, +30% North America: 1.0 million, +2% Rest of World: 0.9 million, +42%

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Twenty years after Michelin introduced the Tweel in 2005, airless tires remain absent from passenger vehicles despite their promise to "eliminate nearly 200 million scrap tires a year caused by flats and underinflation," according to Michelin's internal testing cited in a Jalopnik report. Current prototypes "tend to transfer more road noise and vibration into the cabin than traditional radials -- making the ride harsher, especially at highway speeds." Heat dissipation poses additional challenges as "airless designs -- particularly those with internal webbing or solid cores -- have fewer ways to shed thermal load." The added structural mass "can affect fuel economy and increase unsprung weight -- bad news for handling and suspension tuning." Federal regulations compound these technical barriers since vehicle tires are subject to rigorous performance standards, many of which assume air pressure as a baseline.

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An anonymous reader quotes a report from Ars Technica: [O]ver in the UK, a single-motor version of the Polestar 3 just set a world record for the farthest drive in an electric car on a single charge. Three "professional efficiency drivers," Sam Clarke, Kevin Booker, and Richard Parker, drove 581.3 miles (935.4 km), taking 22 hours and 57 minutes to complete the task. That's an efficiency of 5.1 miles/kWh (12.1 kWh/100 km) -- more than 40 percent better than I saw in day-to-day driving in the twin-motor version. "We are very proud to say we have a world record holder in the Polestar family! This official Guinness World Record for range is another proof point that Polestar 3 is setting new standards. We will continue to push the boundaries of technology and electric performance," said Michael Lohscheller, Polestar CEO. The report notes that the Polestar 3 was "entirely standard, on stock tires," and averaged a speed of less than 25 mph (40 km/h).

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An anonymous reader quotes a report from Seeking Alpha: General Motors is reviving its autonomous driving program, tapping former Cruise employees to help design a driverless car for consumers. Under the helm of former Tesla autopilot head Sterling Anderson, GM is moving ahead with a driverless, eyes-free, vehicle with the ultimate goal of developing a car without a person at the wheel, according to a meeting between Anderson and employees revealed to Bloomberg. Anderson reportedly said plans include rehiring Cruise employees, and adding staff at GM's Mountain View, California office. Currently, LiDAR-equipped vehicles are collecting data on public roads for the development of GM's driverless vehicles, GM spokesperson Chaiti Sen told Bloomberg, with the goal of building simulation models that will guide development. GM (GM) shuttered its majority-owned, money-losing, Cruise robotaxi business late last year and let go of ~1,000 Cruise employees, after a pedestrian accident led to the grounding of its entire fleet and regulatory scrutiny. At the time, the company said it was pivoting away from robotaxis to the development of hands-free driving for personal vehicles.

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An anonymous reader quotes a report from the Detroit Free Press: Ford is announcing the creation of a new electric vehicle production system and a new EV platform that will allow the automaker to more efficiently bring several lower-cost EVs to market, the first of which will be a midsize, four-door electric pickup that seats five, to launch in 2027. That pickup, which is expected to start around $30,000, will be assembled at Ford's Louisville Assembly Plant for U.S. and export markets. The Dearborn-based automaker said it will invest $2 billion to retool the Louisville plant starting later this year. [...] Ford's investment in Louisville Assembly is in addition to Ford's previously announced $3 billion commitment for BlueOval Battery Park in Marshall, Michigan, where Ford will make the prismatic LFP batteries, starting next year, for the midsize electric pickup. Together, the nearly $5 billion investments mean Ford expects to create or secure nearly 4,000 direct jobs while strengthening the domestic supply chain with dozens of new U.S.-based suppliers. Ford executives and Kentucky officials also introduced on Monday, Aug. 11, the new Ford Universal EV Production System, which they said will simplify production and ease operations for workers. Ford leaders also announced the creation of the Ford Universal Electric Vehicle Platform, which will enable the development of "a family of affordable electric vehicles produced at scale." The vehicles will be software-defined with over-the-air updates to keep improving the vehicles over time. "We took a radical approach to solve a very hard challenge: Create affordable vehicles that are breakthrough in every way that matters design, technology, performance, space and cost of ownership and do it with American workers," Ford CEO Jim Farley said in a statement. "Nobody wants to see another good college try by a Detroit automaker to make an affordable vehicle that ends up with idled plants, layoffs and uncertainty." Farley has teased this announcement since Ford's second-quarter earnings when he said Ford would have a "Model-T moment" on Aug. 11. He's referring to the classic vehicle that helped turn Ford into a mass market automaker and perfect the assembly line process. At that time, Farley said it was critical that Ford unveil an EV strategy that would position it to make money selling the electric cars and effectively compete against the Chinese, who are known for making high-quality, desirable and affordable EVs. "So, this has to be a good business," Farley said of Ford's investments in the new process and platform. "From Day 1, we knew there was no incremental path to success. We empowered a tiny skunkworks team three time zones away from Detroit. We reinvented the line. And we are on a path to be the first automaker to make prismatic LFP batteries in the U.S. We will not rely on imports." Ford says its new Universal Electric Vehicle Platform "reduces parts by 20% versus a typical vehicle, with 25% fewer fasteners, 40% fewer workstations dock-to-dock in the plant and 15% faster assembly time." The new EV pickup built using this platform is targeting a "starting MSRP at about $30,000, roughly the same as the Model T when adjusted for inflation," adds Farley. He shared additional details in an interview with Wired, such as how the automaker hired Tesla veterans Doug Field (who also helped lead Apple's now-defunct EV project) and Alan Clarke. "Turns out, Doug and Alan and the team built a propulsion system that was like Apollo 13, managed down to the watt so that our battery could be so much smaller than BYD's," said Farley.

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"General Motors claimed a new world record for EV driving on a single charge," reports the Verge, "after a Chevy Silverado EV traveled 1,059.2 miles without recharging its battery." The potentially record-breaking run took place over seven days on public roads near GM's Milford Proving Ground and Detroit's Belle Isle "using smart driving techniques" that included limiting the speed to 20-25 mph. The truck was a 2026 Chevy Silverado EV Work Truck with an EPA-estimated range of 493 miles. But by making a number of adjustments, GM's engineers were able to far surpass the vehicle's estimated range... First of all, the test was conducted in the summer for "optimum ambient temperature for battery efficiency," GM says. They also lowered the windshield wiper blades to reduce drag, inflated the tires to the highest acceptable pressure for lower rolling resistance, removed the spare tire to lighten the load, and optimized the wheel alignment. A tonneau cover was added to the truck bed for smoother airflow, and climate control was turned off for the duration of the test. GM isn't seeking the Guinness World Records, the article adds, with a GM spokesperson calling it "a passion project led and executed by GM engineers." (The test "started out as casual conversation among a group of GM engineers in late 2024," GM says, but "quickly turned into a challenge: How far could the Work Truck go if we optimized absolutely everything?") After the test, reports Motor Trend, "The dead truck was hauled back to Milford, its battery was topped up, and the energy used to power a Stratasys F370 3D printer, which spent 6.5 hours printing an ABS plastic trophy to commemorate the auspicious event."

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Ancient Slashdot reader Epeeist shares a report from The Guardian: The newest version of the maglev train is capable of traveling at 600km/h (about 370mph). However, the train's engineers have wrestled with the problem of the shock waves which occur as the train exits the mouth of a tunnel. When a high-speed train enters an enclosed space such as a tunnel, air in front is compressed, like in a piston. The resulting fluctuations in air pressure coalesce at the tunnel mouth, generating low-frequency shock waves. These are colloquially known as a "tunnel boom" -- a related, albeit different phenomenon to the "sonic boom" heard as aircraft pass the speed of sound. Tunnel booms pose serious challenges to operational safety, as the shock waves can disturb humans and animals nearby, as well as causing structural damage. Now, however, researchers have discovered that placing innovative soundproofing buffers at tunnel mouths can reduce shock waves by up to 96%. This promises improvements in operational safety, noise pollution and passenger comfort, as well as safeguarding animals in the vicinity of future lines. [...] The porous structure of the new 100-meter long buffers, combined with porous coatings on the tunnel body, allow the trapped air to escape before the train reaches the tunnel mouth, suppressing the boom in the same way as a silencer fitted to a firearm.

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The U.S. Transportation Department is proposing new rules to speed deployment of drones beyond the visual line of sight of operators, a key change needed to advance commercial uses like package deliveries. From a report: "We are going to unleash American drone dominance," Transportation Secretary Sean Duffy said at a press conference on Tuesday. Under current rules, operators need to get individual waivers or exemptions to use drones without visual line of sight. The department said eliminating those requirements "will significantly expand the use-case for drone technologies in areas like: manufacturing, farming, energy production, filmmaking, and the movement of products including lifesaving medications." The proposal includes new requirements for manufacturers, operators, and drone traffic-management services to keep drones safely separated from other drones and airplanes. "It's going to change the way that people and products move throughout our airspace... so you may change the way you get your Amazon package, you may get a Starbucks cup of coffee from a drone," Duffy said.

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