Transportation Science

Transportation Science News -- ScienceDaily Transportation Research. From designing the best transportation systems to improving drivers' speed and safety, find research on transportation science here.

  • Tailgating doesn't get you there faster: Study
    on December 14, 2017 at 2:23 pm

    We've all experienced "phantom traffic jams" that arise without any apparent cause. Researchers recently showed that we'd have fewer if we made one small change to how we drive: no more tailgating. […]

  • Artificial intelligence and supercomputers to help alleviate urban traffic problems
    on December 11, 2017 at 7:59 pm

    Researchers have developed a tool that uses artificial intelligence to recognize objects in raw traffic camera footage and characterize how those objects move and interact. This information can then be analyzed and queried by traffic engineers and officials to improve the safety and performance of the city's transportation network. […]

  • Hearing hybrid and electric vehicles while quieting noise pollution
    on December 5, 2017 at 2:15 pm

    Low-emission vehicles are considered too quiet for hearing-impaired pedestrians, so the European Union is mandating that they be equipped with acoustic vehicle alerting systems. With these alert systems would come a marked increase in the amount of noise on the roads across Europe. […]

  • Is underground transit worse for your health?
    on November 29, 2017 at 9:17 pm

    When researchers set out to study the environmental benefits of different modes of public transit in LA, they found some unexpected results: certain SoCal public transit routes that were entirely underground exposed passengers to greater concentrations of carcinogens in the air. […]

  • Leave a buffer for your bumper: Study contradicts practice of traffic light tailgating
    on November 27, 2017 at 8:20 pm

    The practice of packing tightly at traffic lights is widely accepted. Thanks to new research, drivers now have a good reason to dismiss this faulty line of roadway intuition. […]

  • A revolutionary invention detects black ice in traffic
    on November 27, 2017 at 2:31 pm

    A new invention revolutionizes the way black ice is detected and provides several other improvements in traffic safety as well. The software installed in vehicles can also guide drivers to drive more economically. Software-based, the invention can be installed into a majority of heavy vehicles in particular with no additional equipment. The new invention allows slippery road conditions to be detected accurately. […]

  • To reduce risk of crashing, pick roads with wide shoulders and high speed limits
    on November 17, 2017 at 3:37 pm

    A solid median, wide shoulders, minimal hills -- and a high speed limit? Researchers explore freeway features that minimize crash risk. […]

  • Filtration of nanoparticles from traffic should become a key criterion of building ventilation
    on November 16, 2017 at 2:01 pm

    A good air filter can prevent health-endangering nanoparticle emissions from entering the indoor air of buildings. Air filters that efficiently expel nanoparticles should be adopted in buildings. Now researchers have developed a comparison technique which has detected marked differences between the nanoparticle-capturing performance of air filters. […]

  • Virtual driving instructor and close-to-reality driving simulator
    on November 7, 2017 at 2:35 pm

    Chinese driving schools are currently experiencing a strong demand, the number of learner drivers is growing constantly. A new type of driving simulator based on a car modified for virtual training of learner drivers in advance and an automatic feedback is to help meet this demand. For the close-to-reality driving exercises, complex projection technology and virtual-reality hardware and software are applied. […]

  • Introducing autonomous vehicles sooner could save hundreds of thousands of lives
    on November 7, 2017 at 2:28 pm

    Autonomous vehicles should only have to be moderately better than human drivers before being widely used in the United States, an approach that could save thousands of lives annually even before the technology is perfected, according to a new report. […]

  • Traffic signal countdown timers lead to improved driver responses
    on October 31, 2017 at 7:12 pm

    Countdown timers that let motorists know when a traffic light will go from green to yellow lead to safer responses from drivers, research suggests. […]

  • Origami lattice paves the way for new noise-dampening barriers on the road
    on October 18, 2017 at 1:22 pm

    Researchers have brought a new method into the sound-dampening fold, demonstrating an origami lattice prototype that can potentially reduce acoustic noise on roadways. The technique allows researchers to selectively dampen noise at various frequencies by adjusting the distance between noise-diffusing elements. […]

  • What is a safe following distance?
    on October 11, 2017 at 2:07 pm

    Confusion over what is a 'safe following distance' has road safety researchers calling for a standardized definition to prevent tailgating. […]

  • Timber bridges viable option for local roads
    on October 11, 2017 at 2:45 am

    Structural testing of a glulam timber girder bridge confirmed that they are viable, cost-effective options for replacing bridges on low-traffic county and township road. […]

  • Road pricing most effective in reducing vehicle emissions
    on October 5, 2017 at 6:17 pm

    For decades municipal and regional governments have used various traffic management strategies to reduce vehicle emissions, alongside advancements like cleaner fuel and greener cars. But not all traffic management strategies are created equal, says transportation experts. After reviewing more than 60 studies on the subject, scientists have concluded that road pricing -- or pay per use -- is the most effective strategy to reduce emissions and traffic. […]

  • Caution ahead: The growing challenge for drivers' attention
    on October 5, 2017 at 2:27 pm

    Many of the infotainment features in most 2017 vehicles are so distracting they should not be enabled while a vehicle is in motion, according to a new study. The study found In-Vehicle Information Systems take drivers' attention off the road for too long to be safe. […]

  • Impacts of ride-hailing on crashes differ from city to city
    on October 4, 2017 at 11:05 pm

    Ride-hailing services reduce drunk-driving crashes in some cities, reports a new study. The research is the first to look at the specific effects of ride-hailing, or 'ride-sharing,' within specific cities, rather than averaging data across multiple cities. […]

  • Two intelligent vehicles are better than one
    on October 4, 2017 at 12:49 pm

    Researchers are working to improve the reliability and fault tolerance of intelligent vehicle systems by combining the data they gather with that from other vehicles. This can, for example, extend the field of view of a car that is behind another car. Using simulators and road tests, the team has developed a flexible software framework for networking intelligent vehicles so that they can interact. […]

  • Sensible driving saves more gas than drivers think
    on September 28, 2017 at 7:27 pm

    A new study has quantified the impact speeding and slamming on the brakes has on fuel economy and consumption. Aggressive behavior behind the wheel can lower gas mileage in light-duty vehicles, which can equate to losing about $0.25 to $1 per gallon. […]

  • High cost of truckers not having enough places to park and rest
    on September 27, 2017 at 8:20 pm

    A pilot study illustrates the high economic cost of having too few safe places for commercial truck drivers to park and rest. […]

  • Monetizing time savings makes toll roads financially stack up
    on September 27, 2017 at 1:34 pm

    Putting a dollar value on the savings from traffic congestion, noise and air pollution as a result of toll roads and tunnels will make large infrastructure projects more cost effective, according to a new study. […]

  • Developing roads that can generate power from passing traffic
    on September 18, 2017 at 3:18 pm

    Researchers are looking at advanced materials for roads and pavements that could generate electricity from passing traffic. Engineers are working on smart materials such as 'piezolectric' ceramics that when embedded in road surfaces would be able to harvest and convert vehicle vibration into electrical energy. […]

  • A drone for last-centimeter delivery
    on September 15, 2017 at 9:01 pm

    A new drone uses cutting-edge technology to deliver parcels weighing up to 500 grams. The device will never get stuck in traffic, it’s programmed to avoid obstacles, and it can reach destinations on steep or uneven terrain. Its protective cage and foldable design mean that it can be carried around in a backpack and used in total safety. […]

  • Drivers don't ignore a ringing phone but do ignore the risk
    on September 7, 2017 at 1:36 pm

    Drivers find it difficult to ignore a ringing phone but do ignore the dangers, with a new study revealing almost 50 percent believe locating and answering a ringing phone is not as risky as talking and texting. Research has found locating a ringing phone, checking who's calling, and rejecting or answering the call, is the most frequent mobile phone task undertaken by drivers. […]

  • Fuel economy standards cheaper, more beneficial than previously believed
    on September 6, 2017 at 3:46 pm

    The regulations that set fuel-economy and greenhouse-gas emission goals for cars and trucks have lower costs and higher benefits than previous analyses report, a new study shows. […]

  • Researchers 'count cars' -- literally -- to find a better way to control heavy traffic
    on August 9, 2017 at 6:01 pm

    There's 'Counting Crows,' counting sheep, counting blessings and now researchers have their own version of 'counting cars' -- literally -- in an attempt to improve traffic flow on South Florida's and our nation's overcrowded roads. And with more than 263 million registered passenger vehicles in the United States and more than 14 million registered vehicles in Florida alone, this is no small feat. […]

  • Without HOV policies, urban traffic gets much, much worse
    on July 6, 2017 at 6:31 pm

    Cities plagued with terrible traffic problems may be overlooking a simple, low-cost solution: High-occupancy vehicle (HOV) policies that encourage carpooling can reduce traffic drastically, according to a new study. […]

  • FMCSA's safety measurement system is sound, implementation improvements needed
    on June 27, 2017 at 5:45 pm

    While the Federal Motor Carrier Safety Administration's (FMCSA) Safety Measurement System (SMS) used to identify commercial motor vehicle carriers at high risk for future crashes is conceptually sound, several features of its implementation need improvement, says a new congressionally mandated report. […]

  • System of quadcopters that fly and drive suggest another approach to developing flying cars
    on June 26, 2017 at 4:43 pm

    Being able to both walk and take flight is typical in nature many birds, insects, and other animals can do both. If we could program robots with similar versatility, it would open up many possibilities: Imagine machines that could fly into construction areas or disaster zones that aren't near roads and then squeeze through tight spaces on the ground to transport objects or rescue people. […]

  • Acoustical remake of car horns alerts without jarring
    on June 26, 2017 at 1:36 pm

    Sound permeates the human experience and gets our attention, sometimes traumatically so. Consider the car horn. It is a widespread practical application of this noise-trauma-alert principle -- and an increasing source of noise pollution worldwide as the global traffic population grows. It also is the subject of new noise pollution research. The study introduces a new pedestrian-friendly car-horn sound identified through the Mean Option Score. […]