PedestrianSafety
Latest
London will test smart crossing system to keep pedestrians safe
Sure, pedestrian detection tech for cars is already in the works, but the city of London wants to keep people even safer by equipping its crossings with a bunch of sensors and devices. London Mayor Boris Johnson just announced that the city will try out a smart crossing system, which he claims has never been tested anywhere in the world before. It uses cameras mounted on traffic lights to detect if pedestrians are piling up, and it automatically adjusts signals to give large crowds longer time to cross the road. In the future, the reverse might also be true: the city's transportation agency plans to tweak it so that lights change more quickly when everyone's safely on the other side.
University of Michigan connects 3,000 cars for year-long safety pilot
Road safety continues to be a major concern for both researchers and car makers alike. Yesterday saw yet another real-world trial kicking off, this time on a much grander scale. A total of 3,000 vehicles in Ann Arbor, Michigan are taking part in a 12-month project run by the state's Transportation Research Institute. The vehicles have Dedicated Short Range Communications and video recording facilities, which means the cars can communicate with each other, traffic signals, and share data to a central platform -- which in turn issues warnings when high risk situations, or if traffic problems occur. Of course, this trial will also create a massive data set, which researchers will be able to plunder, and help the National Highway Traffic Safety Administration (NHTSA) better determine the viability of such systems. So while it's unlikely to lead to self driving cars just yet, it's a step in the right direction.
GM testing pedestrian detection system powered by WiFi Direct (video)
Car makers have been peddling wireless pedestrian avoidance systems almost as long as there have been automobiles. (We believe one of the earliest was called the "side view mirror.") GM's new experiment though, differs from other implementations by skipping out on the 3G, cameras and radar -- instead going for a model built around WiFi Direct. The peer-to-peer 802.11 standard hasn't exactly set the world on fire, but the WiFi Alliance is diligently tweaking the platform and apparently GM thinks its a perfect match for connecting cars, cyclists and pedestrians to each other. Unlike 3G-based systems, there's little lag between locating and identifying bikes or people crossing the street since the signal doesn't have to be bounced off a satellite. It also has a leg up on radar detection since WiFi can be a two way pipeline -- alerting someone out for a stroll of an oncoming vehicle. Of course, it will be some time before anything like this actually makes it into a production vehicle. But, in the meantime, you can check out the PR and video after the break.
Panasonic details radar-based technology that can detect collisions in low light
Collision detection for cars? Yeah, scientists are on that. But whenever we read about concepts like this, the accompanying literature is often curiously light on details pertaining to real-life driving conditions; it's often unclear how well the tech will fare if you dredge it up on a foggy day, or in the middle of torrential storm. But in that press release you see down there, low visibility and poorly lit roads are all Panasonic wants to talk about. The company just unveiled its new crash-avoidance system, which, like other concepts we've seen, uses millimeter-wave radar technology to detect pedestrians and bicyclists. Since humans tend to reflect weaker radar signals than cars, Panasonic has designed a new pulse radar code sequence that allows pedestrians to leave a bigger footprint. It's so effective, the company claims, that it can detect bystanders up to 40 meters (131 feet) away, and will work at night and through rain, fog, snow and blinding sunlight. That all sounds promising, of course, but as with other concepts, it's not clear, when, exactly we'll see this system put to good use in the real world.
Toyota demos Prius' proximity notification system, touts 'futuristic' purr (video)
Silence may be a virtue under most circumstances, but not when you're driving around a leafy, residential neighborhood in your Toyota Prius. That's why the manufacturer came out with its very own vehicle proximity notification system last year -- a "futuristic," underhood noisemaker designed to alert pedestrians and the visually impaired to the plug-in's presence. Now, Toyota has offered more details on its safety system, in a freshly released demo video starring the 2012 Prius V. The car's artificial engine noise, as the company explains, only kicks in at speeds below 15 miles per hour, allowing it to broadcast its audible heads-up across parking lots or other low-speed zones. The sound itself, meanwhile, emanates from external speakers and consists of a blend of high and low frequencies that won't be by muffled by background noise or physical obstacles. The vehicle's pitch shift technology also enables the tone to rise in pitch as the car speeds up and to fall as it slows down, giving others an idea of how fast it's approaching. Accelerate past the break to see the full video for yourself, while John Kerry nods in silent approval.
Nissan Leaf delayed in UK, backup warning signal to blame
Surprise of all wonders, the Nissan Leaf has suffered another delay, but this time there's at least an amusing anecdote to quote while you wait. You see, The Northern Echo quotes a Nissan spokeswoman as saying that the Leaf's backup warning signal emits a loud beep, but UK law requires that such sounds be disabled between the hours of 11PM and 6AM. "The audible system on the Leaf did not allow for that to be done, so the beeping sound is being removed entirely before the cars can be driven on roads in this country," Nissan said, which will result in a "slight delay" in shipping the cars from the company's Japanese plant. Amusingly, US law actually requires electric cars to make noise these days.
Hyundai Sonata Hybrid was delayed into 2011... by 'virtual engine sound' system
Remember how at the end of last year the US legislature decided to make it mandatory for EVs to churn out an audible noise while in motion? It was all in the name of saving pesky pedestrians from getting in the way of your gliding electro-car, but the new law itself has managed to create a bump in the road for at least one company. Hyundai's Sonata Hybrid was all set to launch in late 2010, equipped with a "virtual engine sound" system that the user could toggle on and off, however the government's request that it be kept permanently on required modifications to the vehicle's wiring harnesses, UI software and user manuals, delaying its debut into late January. These tweaks had to be done "amazingly late in the process," according to Hyundai America CEO John Krafcik, but the delay will at least ensure that all of Hyundai's Sonatas will sound the same. Which is something, we guess.
Prius gets optional underhood, zombie-deterring noisemaker, sounds appropriately futuristic (video)
Electric vehicles and hybrids are here to save the environment (or at least kill your fuel bill), but if you listen to some people they're also here to mow down our pedestrians thanks to their ninja-like ways. Nissan's Leaf has already gone the way of sci-fi by offering a Blade Runner-inspired exterior soundtrack to make sidewalk replicants take notice, and now the Prius is joining in on the fun with its own under-hood speaker system. Curiously, this one will be optional, Toyota apparently expecting that purchasers are so philanthropically minded that they'll pay an extra 12,600 yen (about $150) to protect poor pedestrians. You can see how it's supposed to work in the image above, in which a Prius is shown emitting sound waves to deter a toupee-wearing zombie. But, if you'd rather watch a flashy presentation and hear it for yourself, check out the thrilling video after the break. It'll make you wish your auto sounded like a hovercar.
Chevrolet Volt gets driver-activated warning system for the blind
Whether it's voluntary or enforced, it seems to be a safe bet that most electric vehicles will eventually break their silence in one way or another to warn nearby pedestrians -- especially the blind. Chevrolet looks to be taking a slightly different approach than most with the Volt, however, and it recently tested out its system with a group of visually-impaired folks at its Milford Proving Grounds. Rather than simply making the vehicle sound like a regular car, Chevy has implemented a driver-activated system that emits what's described as more of an "excuse me" sound than "hey you" sound whenever you want to warn people you're approaching. Of course, depending on the driver does have its limitations, and Chevy says that future iterations of the Volt are likely to incorporate a more active system that can automatically alert pedestrians. Check it out in action after the break.
Pedestrian Safety Act of 2009 to investigate the dangers of silent automobile engines
As automobiles become more eco-friendly, they're also becoming increasingly quieter... which is a good thing, if, like us, you want to live in a completely silent world (the blaring of Mastodon notwithstanding). The obvious problem with quieter vehicles is, of course that they can pose a real danger to unsuspecting pedestrians. To combat this terrifying prospect, Senators John Kerry (D, MA) and Arlen Spector (R, er... D, PA) have introduced The Pedestrian Safety Enhancement Act of 2009. This bill requires the Secretary of Transportation to conduct a study on what effects of hybrid, electric and other silent engine vehicles are having on pedestrian injuries and deaths in the US. The bill specifically focuses on the perils of quiet engines to blind pedestrians, but notes that the dangers are likely wider spread than that. While there are no possible solutions mentioned, may we suggest writing into law that you have to have a bullhorn strapped to your car and yell "vroom vroom" the entire time you drive?
