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.

  • 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. […]

  • Following a friend leads to unsafe driving behavior
    on June 23, 2017 at 2:04 pm

    A new study inspired by a court case involving a driver seriously hurt in an accident when following another car to a destination, provides evidence to show that the car behind makes risky driving maneuvers. Driving faster, more erratically, closer to the car in front and jumping traffic lights are all blamed on a fear of getting lost. Drivers are advised to provide the follower with a map or navigational guide before setting off. […]

  • Transportation noise increases risk for cardiovascular diseases and diabetes
    on June 21, 2017 at 2:31 pm

    Transportation noise increases risk for cardiovascular diseases and diabetes, new research indicates. […]

  • Six key impact areas of shale oil and gas development in Texas
    on June 19, 2017 at 1:22 pm

    A comprehensive review of the impacts of oil and gas development in Texas by a cross-disciplinary task force of top researchers finds a wide range of both benefits and consequences for the state's environment and communities. […]

  • Semi-autonomous cars: No more stopping for red lights?
    on June 16, 2017 at 4:17 pm

    Cars could soon negotiate smart intersections without ever having to stop, a new report suggests. […]

  • Long term exposure to aircraft noise linked to high blood pressure
    on June 13, 2017 at 10:51 pm

    Long term exposure to aircraft noise, particularly during the night, is linked to an increased risk of developing high blood pressure and possibly heart flutter and stroke as well, suggests research. […]

  • Variable speed limits could reduce crashes, ease congestion in highway work zones
    on June 6, 2017 at 5:54 pm

    As the summer months approach, most people turn to thoughts of sunshine, outdoor barbecues and destination trips. Yet travelers often are greeted by detours, lane closures and delays for road repairs that generally are reserved for warmer weather. Researchers have studied systems to alleviate inevitable backups and delays. Researchers found that using variable speed limits in construction zones may ease congestion, reduce crashes and make work zones safer for both workers and travelers nationally. […]

  • Could your car predict a cardiac event? Study explores heart monitoring in vehicles
    on June 6, 2017 at 1:10 pm

    Medical emergencies cause a high number of vehicle crashes. Now researchers have teamed up with Toyota to examine whether new vehicle technology could predict -- and potentially prevent -- such scenarios. […]

  • New teen drivers three times as likely to be involved in a deadly crash
    on June 1, 2017 at 12:22 pm

    A new study analyzes crash rates per mile driven for all drivers and found that for every mile on the road, drivers ages 16-17 are three times as likely as adults to be involved in a deadly crash. […]

  • Drone vs. truck deliveries: Which creates less carbon pollution?
    on May 30, 2017 at 7:43 pm

    A new study finds that drone deliveries emit less climate-warming carbon dioxide pollution than truck deliveries in some -- but not all -- scenarios. […]

  • Switching to off-peak delivery times reduced city congestion
    on May 24, 2017 at 12:45 pm

    In some businesses – like supermarkets and restaurants – local restrictions on nighttime deliveries leave distributors no choice but to dispatch trucks during morning rush hours. But lifting these rules could reduce peak traffic volumes and increase transport efficiency, according to a recent study. […]

  • New Way to Test Self-Driving Cars Could Cut 99.9 Percent of Validation Costs
    on May 23, 2017 at 2:44 pm

    Mobility researchers have devised a new way to test autonomous vehicles that bypasses the billions of miles they would need to log for consumers to consider them road-ready. […]