Articles tagged with Transportation
Researchers found associations between financial hardship, food insecurity, housing instability, and transportation difficulties with increased mortality risk among adults with new cancer diagnosis. The study highlights the importance of addressing social determinants of health for improving patient outcomes.
The Wasatch Transportation Academy provides community members with knowledge and tools to get involved in transportation decision-making. Key findings include a high degree of satisfaction among participants, who reported increased engagement in various transportation-related activities after taking part in the academy.
Researchers from Hiroshima University developed a comprehensive framework to improve carbon-cutting policies in China. The model takes into account various factors, including behavior, land use planning and energy consumption, to provide a fuller picture for policymakers.
A new study from Indiana University warns that the US is unlikely to reach its national goal of 50% plug-in electric vehicle penetration by 2030 unless electric vehicles become more affordable. The study suggests that lower prices and better policy are needed to stimulate consumer demand for affordable electric vehicles.
The study reveals that donkeys were first domesticated in Africa 5,000 years ago, with a previously unknown genetic lineage discovered in the Levant. This discovery has significant implications for understanding the history of trade between Europe and North Africa.
The study introduces a new day-to-day traffic assignment model that incorporates bounded rationality, suggesting users consider topological similarity when making travel choices. This leads to the concept of Boundedly Rational User Equilibrium (BRUE), where routes with low cost variations are used.
A recent study by Florida Atlantic University found that only seven out of 50 largest US cities have strong evacuation plans in place, highlighting a need for improvement in preparing for natural disasters. The study suggests that cities with experience in major hurricanes tend to develop stronger plans.
Bhattacharya's project uses topological abstraction to reduce complexity in robotic systems, enabling more efficient and accurate motion planning. The approach has potential applications in industries such as transportation, manufacturing, and healthcare.
A new study by the University of British Columbia suggests that BC's ocean contributed around $4.9 billion to provincial GDP in 2015, with marine transport sector making the highest contribution. However, this estimate is likely an underestimate due to excluded ecosystem services and cultural value.
A study by Columbia University and Drexel University found that the transition to cleaner fuels and engines in New York City's bus fleet led to declines in air pollution concentrations, including nitrogen oxides and black carbon. The findings suggest that similar changes can be realized in other cities to mitigate air pollution.
Researchers at MIT estimate the probability of getting Covid-19 on a plane flight was about 1 in 2,000 from June 2020 to February 2021. The study provides a general estimate of air travel safety with regard to Covid-19 transmission and a methodology that can be applied to future studies.
A cross-sectional study found that the elderly's daily step count and physical activity level are strongly influenced by the number of places they visit, not just their out-of-home time. The researchers suggest that encouraging outings to diverse locations can be a healthier approach than simply going for longer periods.
Researchers developed Direct Air Capture technology to remove carbon dioxide from the air using special rail cars attached to trains. The technology harnesses sustainable energy generated during braking to capture significant quantities of CO2, making it commercially viable and attractive.
A team has developed a plan to retrofit train cars with direct air capture technology, which can remove up to 6,000 tonnes of carbon dioxide per year. The system uses energy generated from the train's braking system, reducing costs and environmental impact.
A study of 56,000 older adults found that health-related social needs were associated with significantly higher rates of acute care utilization. Unreliable transportation was particularly linked to hospital stays and emergency department visits.
Scientists developed a novel multilayer coating to improve the longevity of steel, increasing its lifespan by up to 400 hours. The coating, comprising three layers, was found to provide higher resistance to rust than conventional Zn coatings.
A new distributed recycling system using microwave irradiation recovers 97% of manganese oxide and zinc from spent alkaline batteries, outperforming conventional methods. The system's potential to reduce annual energy consumption and greenhouse gas emissions in Japan is estimated at 26,500 GJ and 1.54 Gg-CO2 eq, respectively.
The Active Transportation Return on Investment Study found positive effects on business activity in retail and food sectors, benefiting areas outside of downtown Portland. The research team evaluated 12 projects constructed between 2001 and 2016 and recommended investments for Metro's Regional Flexible Funding Allocations.
A team at Portland State University is creating comics to share research findings on transportation and land development. The project aims to bridge the gap between academic research and the general public, addressing barriers such as complex language and storytelling, while showcasing the potential of visual rhetoric.
Researchers at Portland State University created a two-stage stochastic programming model to optimize e-scooter placement, charging, and rebalancing in Tucson. The model uses data from the City of Tucson to answer questions on demand uncertainty, idle periods, and customer satisfaction.
A study published in PLOS Global Public Health found that patients in Tanzania faced barriers to accessing rehabilitative care following an injury, including difficulty finding transportation or childcare. The research highlights the need for improved patient education and increased access to outpatient services.
A new study provides a roadmap for the US to reach its 50% greenhouse gas emissions reduction target by 2030, with rapid decarbonization in power and transportation sectors crucial. The study, based on six leading energy models, suggests that tripling historic carbon reductions is achievable through collaboration across all sectors.
A straightforward questionnaire, called the Attentional Failure during Driving Questionnaire (AFDQ), has been developed to assess older drivers' ability to drive safely. The study found that repeated attentional challenges were a key predictor of crashes among older drivers.
Researchers at North Carolina State University have developed a new technique for extracting hydrogen gas from liquid carriers, making it faster, less expensive and more energy efficient. The new method uses sunlight and a reusable photocatalyst to release hydrogen molecules, reducing the need for rhodium and lowering production costs.
A UNIGE team found that car owners systematically underestimate electric driving ranges to meet their daily needs. To overcome this, researchers suggest providing personalized information to increase drivers' willingness to adopt electric vehicles.
A community-focused approach led by Boston Medical Center significantly improved COVID-19 vaccination uptake in historically disinvested Black and Latino communities. The initiative administered over 100,000 first doses, with a focus on mobile vaccination events and community-based clinics.
A new study suggests that individuals perceive a space as congested when they can't walk at their desired speed. Age and gender also play a role, with older and female pedestrians reporting lower feelings of congestion. The researchers hope to apply this finding to design spaces that prioritize comfort and usability.
A recent study found significant racial and ethnic disparities in excess deaths from external causes, including homicide, suicide, and transportation accidents. The study estimated these disparities during the COVID-19 pandemic, highlighting the need for targeted interventions to address health inequities.
A new white paper from Portland State University explores how purchase incentive programs can expand the current e-bike market, identifying effective program structures and administration methods. The study examines impacts and statistics from around 75 e-bike incentive programs in North America.
A new method reduces computational complexity of traffic models, making them operate more efficiently. The modified algorithm breaks down complex forecasting questions into smaller problems that can be solved in parallel, significantly reducing run time. This approach also allows for a good enough solution within an error bar, rather t...
A flying intervention team deployment was significantly associated with shorter time to endovascular thrombectomy, supporting consideration for some stroke systems of care. The findings may need further research to confirm long-term clinical outcomes and applicability in other geographic settings.
Researchers at Tokyo University of Science propose two new search strategies to reduce the computational cost of rebalancing in bicycle-sharing systems. The approaches focus on finding feasible solutions more efficiently and redefine the problem to minimize solving time.
Researchers from the University of Cambridge have developed a hybrid, data-driven approach to the Travelling Salesperson Problem that significantly outperforms current methods. The new approach converges to optimal solutions at a faster rate and produces high-quality solutions under restricted computation time.
A study using Ohio license data found that mandatory driver education, including behind-the-wheel training, reduces crash rates among novice drivers under 18. The research suggests reevaluating comprehensive licensing policies to keep young drivers safe.
Developed by Prof. Qing Shi's team, SQuRo can mimic the motion of actual rats and perform various motions like crouching-to-standing, walking, crawling, and turning. It successfully passed through an irregular narrow passage and demonstrated its potential application to inspection tasks inside narrow spaces.
Researchers studied cyclists in Tucson, AZ, revealing differences in behavior among commuters, recreational riders, and athletes. Infrastructure design can address these needs, such as separate paths and lanes for various types of cyclists.
A recent UCLA study found that the injury rate for e-scooter riders in Los Angeles is higher than the national rates for motorcycle, bicycle, car, and pedestrian injuries. The study estimates 115 injuries per 1 million e-scooter rides, highlighting a growing risk as e-scooters proliferate globally.
Researchers from Tokyo University of Science analyzed usage patterns of bicycles in four major US cities to improve bicycle sharing system efficiency. They found temporal patterns and similarities between weekdays and weekends, contradicting previous studies.
Researchers from North Carolina State University have released a dataset providing detailed information on COVID-19 vaccine shipments and wastage across the US. The data aims to inform modeling and decision-making to optimize vaccine supply chains.
Researchers from Chalmers University of Technology present a framework for comparing e-scooter safety, highlighting the importance of analyzing rider behavior and identifying strategies for improving traffic safety. The study found that braking performance is superior on bicycles, while e-scooters excel in steering maneuvers.
A new study finds that flame-retardants and plasticizers are present in the oceans, harming marine organisms and potentially affecting human health. The substances, which are widely used in everyday products, can be transported from inland sources to coastal environments through air masses and ocean currents.
Researchers at Argonne National Laboratory have discovered a key reason for the performance decline of sodium-ion batteries, which are promising candidates for replacing lithium-ion materials. By adjusting synthesis conditions, they can fabricate far superior cathodes that will maintain performance with long-term cycling.
A new AI method accurately estimates timetable robustness within milliseconds, enabling efficient optimization. This improves balance between passenger needs and economic conditions.
Argonne scientists are developing new materials for batteries, researching sustainable fuels, and expanding carbon-free energy sources like nuclear power. They're also exploring ways to capture and utilize CO2, with the goal of reducing greenhouse gas emissions and slowing global warming.
Research from Rensselaer Polytechnic Institute found a significant drop in traffic accidents during the COVID-19 pandemic, with accidents involving males, nonwhite drivers, and individuals in the 25-64 age group showing smaller reductions.
A new analysis reveals that socioeconomic status amplifies underlying differences in the spatial patterns of how men versus women travel within cities. Women tend to travel shorter distances than men, but socioeconomic factors play a bigger role in shaping their mobility patterns.
Researchers from Shibaura Institute of Technology analyzed 18 Tokyo Metropolitan Area railway lines to understand the impact of in-vehicle congestion on efficiency. They found that incorporating congestion rates into efficiency analysis can help develop better public transit strategies, leading to higher service levels and sustainability.
A vision for a net-zero Germany in 2050 emphasizes the need for rapid adaptation of the energy system to renewables, as well as technological measures for active CO2 removal and natural sink enhancement. Implementing these measures requires legal, political, economic, and social frameworks.
Yi-Ching Lee, a George Mason University Assistant Professor, has received funding from the U.S. Department of Transportation for his graduate fellowship in transportation-related disciplines. He will conduct research on vehicle-to-interface communication systems to improve the deployment and design of these systems.
Researchers at City University of Hong Kong have developed a novel droplet manipulation method called WRAP, which can transport micro-sized droplets using electromagnets or programmable electromagnetic fields. The method overcomes challenges in traditional magnetic actuation, such as contamination from added magnetic particles.
Scientists at the University of Copenhagen have developed a method to produce non-alcoholic beer that tastes like regular beer, improving its flavor and sustainability. The technique involves using micro-factories of yeast cells to release hop aroma molecules, eliminating the need for expensive aroma hops.
Researchers created three computer models to optimize housing and service provider locations, ensuring former offenders can access necessary services efficiently. The tool addresses limited public transportation options, a major barrier to successful reentry.
A study by Portland State University found that only 16 transit-oriented developments across the US were fully affordable to low- and moderate-income households. The research highlights the need for policies and regulations to promote affordable housing in TODs, such as requiring a share of affordable units in public property projects.
Researchers at the University of Delaware have developed a novel electrochemical system that can capture 99% of carbon dioxide from air, effectively turning it into an environmentally friendly fuel cell technology. The technology uses hydrogen as power and has potential applications in various industries, including automotive, aerospac...
A new study by Cornell University found that moving professional conferences online reduces the global event industry's carbon footprint by 94%, and shifting to a hybrid model cuts it to 67%. The annual carbon footprint of the industry is comparable to the yearly greenhouse gas emissions of the entire US.
Researchers have developed a high-resolution radar sensor that can reliably distinguish between cars and pedestrians, providing counts, speed, and direction of each moving target. The sensor outperforms cameras in low-visibility conditions and beats conventional radar by providing a richer picture.
A new report from Portland State University aims to improve mobility and quality of life for older adults by developing forms of assistance and educational strategies. The study found that low-income older adults faced significant barriers to transportation, including fear of public transit during the pandemic lockdowns.
A team of scientists used satellite images to track ammonia concentrations in the air above Los Angeles before and during the pandemic lockdown. They discovered that cars may produce up to 95% of this harmful pollutant throughout the city, significantly higher than previous estimates.
Researchers at Singapore University of Technology and Design found that adding carbon emission labels can influence online shoppers to choose more sustainable shipping options. The study showed that slow shipping options result in lower emissions but longer delivery times, with an 81% reduction in emissions possible.
Researchers develop an algorithm to find optimal or near-optimal solutions in the space of 'infeasible solutions' to speed up search, alleviating traffic congestion and improving city living. A novel solution to a combinatorial optimization problem in bicycle sharing systems is proposed.