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.

  • 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. […]

  • Flight delay? Lost luggage? Don't blame airline mergers, research shows
    on May 23, 2017 at 12:20 pm

    Airline consolidation has had little negative impact on on-time performance, an analysis of 15 years statistics has found. […]

  • A few self-driving cars can dramatically improve traffic flow, Experiments show
    on May 10, 2017 at 1:57 pm

    The presence of just a few autonomous vehicles can eliminate the stop-and-go driving of the human drivers in traffic, along with the accident risk and fuel inefficiency it causes, according to new research. The finding indicates that self-driving cars and related technology may be even closer to revolutionizing traffic control than previously thought. […]

  • Consumers are willing to pay $4,900 extra for a car that drives itself
    on May 8, 2017 at 12:35 pm

    The average consumer would be willing to pay $4,900 more for a car that had self-driving technologies, and $3,500 more for crash avoidance, according to a new study. […]

  • Drivers are slower to respond to emergencies in semi-automated cars
    on May 8, 2017 at 12:34 pm

    Drivers respond to emergencies more slowly and severely in semi-automated cars, according to a new study. The authors of the study say we will need new ways of assessing whether drivers are safe behind the wheel to keep up with the technology. […]

  • Stringent exhaust gas tests for cars in Europe
    on April 26, 2017 at 4:30 pm

    As of October 2017, newly launched car models will have to pass more stringent exhaust gas tests in the EU and in Switzerland. The new test method includes measuring drives in actual traffic. Researchers have already tested currently available cars with the new method – with alarming results. […]

  • 5G enables precision road weather services, provides robot cars with the ability to hear
    on April 20, 2017 at 1:40 pm

    The 5G-Safe project, which aims to reduce traffic accidents, is currently being coordinated in Europe. This involves the development of new vehicular network solutions and the local road weather and safety services they enable, in support of drivers, road operators and autonomous vehicle management systems. The new services will require no action from motorists while driving -- data will be gathered and warnings will be sent to users automatically. […]

  • ATV-related injuries in children remain large public health problem
    on April 15, 2017 at 10:21 pm

    All-terrain vehicle-related injuries remain a large public health problem in this country, with children more adversely affected than adults. According to researchers, the major risk factors for young riders also are entirely preventable. […]

  • Distracted? Slowing down, not a safe option
    on April 11, 2017 at 2:45 pm

    Drivers who slow down while using mobile phones have the potential to increase on-road conflicts, a new study warns. Distracted drivers reducing their speed might sound favorable in terms of safety, but it could also lead to other types of crash risk, say investigators. […]

  • In-car cow avoidance
    on April 7, 2017 at 2:36 pm

    Driverless cars are hitting the headlines across the globe but for the foreseeable future we will still have drivers. The pressure then is how might some of the safety features of driverless cars be incorporated into conventional vehicles? Researchers from India describe a real-time automatic obstacle detection and alert system for driver assistance. […]

  • New smart system to reduce queues at roundabouts
    on March 29, 2017 at 2:25 pm

    Long queues at certain approaches to some roundabouts could be reduced using magnetic detection devices under the road surface, which would activate a traffic metering signal at another, less congested approach. Researchers have released a guide for technicians to implement this intelligent traffic system, already used on roundabouts in Australia and on various highway on-ramps. […]

  • Engineers dive into big data to develop better system to manage traffic incidents
    on March 23, 2017 at 12:41 pm

    Traffic researchers are developing technology that will take the huge amounts of data collected by the Iowa Department of Transportation, sort through it all and identify problems. The goal is early detection of traffic incidents and better traffic management. […]

  • After the storm: Tips for surviving Old Man Winter's inconveniences
    on February 9, 2017 at 6:43 pm

    Experts share some tips that go beyond the usual winter safety driving advice and touch upon those often overlooked inconveniences that winter storms leave behind in order to decrease injuries and major accidents. […]

  • Mathematically optimizing traffic lights in road intersections
    on February 3, 2017 at 4:02 pm

    Traffic modeling has been of interest to mathematicians since the 1950s. Research in the area has only grown as road traffic control presents an ever-increasing problem. In a new paper, authors address the problem of computing optimal traffic light settings for urban road intersections by applying traffic flow conservation laws on networks. […]

  • 1000 times more efficient nano-LED opens door to faster microchips
    on February 2, 2017 at 5:27 pm

    The electronic data connections within microchips are increasingly becoming a bottleneck in the exponential growth of data traffic. Optical connections are the obvious successors but optical data transmission requires an adequate nanoscale light source, and this has been lacking. Scientists have created a light source that has the right characteristics: a nano-LED that is 1000 times more efficient than its predecessors, and is capable of handling gigabits per second. […]

  • 'Takeover time' in driverless cars crucial to safety
    on January 26, 2017 at 1:16 pm

    The length of time needed for a driver to switch from automated vehicle control to manual vehicle control is crucial for the safety of future automated vehicles, research shows. […]