Articles tagged with Transportation
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.
A case study evaluated the experience of a deafblind adult using three wayfinding support tools on an urban college campus. The tactile map proved to be the most successful tool, while the mobile application yielded the lowest performance and confidence. Simplifying wayfinding tools and tailoring information to individual preferences a...
Researchers at PSU and UT Arlington will assess how crowdsourced data can help establish pedestrian activity on streets. The study aims to provide a more accurate alternative to traditional counting methods, enabling safer studies and better urban planning.
China's space transportation systems have made significant leaps in recent decades, with advancements in launch vehicles, propulsion systems, and artificial intelligence. The country aims to become a powerful space nation by the mid-21st century, with plans for manned missions to the Moon and Mars.
Engineering researchers at Ohio State University developed a method to use Starlink satellite signals to accurately locate positions on Earth, similar to GPS. The accuracy of this technique is comparable to or even surpasses that of GPS, with the potential to be used as an alternative navigation system.
Researchers at Karlsruhe Institute of Technology have developed a record-breaking lithium-metal battery with an energy density of 560 Wh/kg, retaining 88% capacity after 1000 cycles. The battery features a nickel-rich cathode and a dual-anion ionic liquid electrolyte, which significantly improves stability.
A North Carolina State University panel of experts assesses AV deployment risks and benefits, predicting substantial benefits if well-regulated. The study's findings suggest regulations could limit urban use of AVs and commercial fleet ownership, reducing risk and increasing benefits.
Researchers at Portland State University developed new survey methods to address the limitations of current household activity surveys. The study found that existing methods lack social, cultural, and linguistic applicability for marginalized groups, leading to inaccurate data. By improving data collection efforts, transportation profe...
Researchers at Portland State University propose a multiple-criteria approach to ensure equitable distribution of common carrier parcel lockers at transit facilities. The study evaluates accessibility and equity metrics, including ridership, mode of transportation, and sociodemographic profiles, to identify high-potential locations for...
Researchers at Portland State University developed data-driven speed management strategies to improve safety and efficiency in multimodal transportation. They found that disabling speed feedback signs on conventional roadways resulted in reduced driver speeds and a lower likelihood of severe crashes.
A new study uses machine-learning algorithms to predict the next phase of a traffic signal, giving bicyclists a smoother ride. The researchers achieved high accuracy with 85% prediction success rate, using LSTM and 1D CNN models.
A multi-year study found that cashless fare systems can exclude lower-income riders due to lack of access to smartphones, internet, and banking services. Maintaining cash options can mitigate this issue, offering a more equitable solution for all riders.
A new article examines polycentric development in the Wasatch Front Region, Utah, finding that moderately compact urban design fosters trip generation through walking and biking. The study also highlights the importance of public transit connections to reduce vehicle miles traveled and combat urban sprawl.
Researchers investigate associations between ride-hail trips and on-street parking occupancy in Seattle, predicting decline if ride-hail demand exceeds 2.24 times the 2016 average. Flexible parking policies can manage changes driven by ride-hailing, but cities must plan ahead.
The study highlights the importance of urban sustainability observatories that leverage urban experimentation for effective policy-making. Researchers discuss challenges and potential partnerships between universities, communities, and industries to establish successful observatories.
Researchers found that new direct airline routes can significantly increase the number of kidneys shared between regions, with a potential increase of over 7%. The study also showed that this increase in kidney sharing does not come with a decrease in kidney quality.
Four North Philadelphia organizations, including Maternity Care Coalition and Oshun Family Center, receive $430,000 in funding to improve access to healthcare, food, and housing, as well as economic empowerment. The Bernard J. Tyson Impact Fund aims to foster health equity and economic empowerment.
A recent study published in Proceedings of the IEEE reveals that high-frequency signals can be managed more effectively than previously thought, addressing key challenges in 6G technology. The research has significant implications for applications such as haptic internet, mobile edge computing, and holographic communication.
Aleksandar Stevanovic, University of Pittsburgh associate professor, receives Fulbright Specialist Program award to develop Intelligent Transportation Systems in Serbia. The project aims to reduce fossil fuel consumption and carbon footprint in urban networks.
The integration of mobile elements in terrestrial and underwater wireless sensor networks enhances communication between nodes. This leads to a decrease in energy consumption, improved energy efficiency, and extended network lifetimes.
Epidemiological studies confirm that transportation noise increases cardiovascular morbidity and mortality, leading to ischaemic heart disease. The authors review the effects of noise on vascular dysfunction, inflammation, and hypertension, highlighting the need for noise-mitigation efforts and legislation.
The University of Texas at Arlington is creating six open textbooks for a new postbaccalaureate certificate in transportation planning and policy. The project aims to eliminate textbook costs for students enrolled in certain courses and expand open educational resources for transportation planning programs.
Researchers at UT Austin will develop methods to validate the cost and scalability of autonomous cargo operations, leveraging machine learning and computational engineering. The team aims to address public concerns about noise pollution, safety, and emissions through mathematical models and terrain-based surface design.
A study published in Science Communication found that watching high-quality, engaging media programs on climate change can reduce political polarization among Democrats and Republicans. Participants who were most engaged with the program showed greater perceptions of climate change risk and efficacy in taking action.
The study found that transportation emissions decreased by 19.2% and aviation pollution plummeted by 37.4% due to reduced human mobility. The largest decline was seen in the US, with a 13% drop in CO2 emissions.
Kathleen Smits' innovative approach links environmental data with gas concentration readings to understand leak severity and migration. The research aims to examine reoccurrence of leaks, urbanization effects, and repaired leaks that continue to vent, providing critical insights for industry and regulators.
A study found that non-driving-related license suspensions are given to over 90% of drivers in New Jersey, affecting low-income neighborhoods and communities of color. These suspensions disproportionately limit access to employment and healthcare, with failure to pay fines being the most common reason.
A recent study published in Marketing Science reveals that travel site aggregators can be negatively impacted by regulatory scrutiny and lack of comprehensive data. The researchers found that nearly 52% of aggregator users browse only one airline, undermining the aggregator's market power.
A new study by Washington State University scientist Raven Weaver found that older adults living in very rural settings are less likely to receive available services compared to those in mostly rural areas. The study highlights the most vulnerable groups within the rural classification, emphasizing the need for proactive support.
As autonomous vehicles challenge traditional auto-related funding streams, cities must prepare for potential revenue implications. Researchers analyzed transportation network companies' impact on parking demand and found a non-linear relationship between Uber trips and occupancy. Cities can adjust parking policies by time/day, lower pr...
The research team synthesized findings into a series of ten technical briefs highlighting best practices and lessons learned in bike share equity policies, data collection, metrics, marketing, and more. The two-page briefs are intended as a resource for bike share professionals and community partners.
A new device reduces perceived loudness of urban noises by up to half through sound wave cancellation. The device, consisting of 24 speakers and a sensor, is tested in a replica room with various noise sources, demonstrating up to a 10 decibel reduction.
Researchers developed a model to help airlines respond to flight delays and cancellations while considering potential future disruptions. The approach could result in millions of dollars in savings annually by reducing unnecessary costs such as speeding up aircraft or canceling flights.
Di's project aims to develop a novel modeling and simulation platform to project future mixed-traffic dynamics and assist in socially optimal policy-making. She will leverage her expertise in travel behavioral modeling and network optimization to create a game-theoretic framework that incorporates game theory, dynamic control, data sci...
Researchers at Nagoya City University develop a 10-amino acid sequence that enhances the cellular secretion of recombinant erythropoietin. The 'passport' sequence is recognized by a cargo receptor, allowing for improved production yields of biopharmaceuticals.
The project aims to demonstrate that intelligent control of a small number of connected and automated vehicles can improve the energy efficiency of all vehicles in the flow by reducing congestion effects.
Researchers find optimal design for 3-drone facilities covering 75% of NYC area and 34% of population, with increasing costs not justified beyond this point. The study suggests drone delivery may be viable in smaller markets with price-sensitive customers under right tech capabilities and regulations.
Researchers from Dartmouth and MIT developed a new approach to flight scheduling that aligns flights with passenger preferences, maximizing airline profits. The tool could result in more one-stop itineraries and increased revenue for airlines.
Researchers at Trinity College Dublin developed a new spatial index to measure the connections between poverty and poor accessibility in Brazil. The mapping tool identifies areas where people face extreme difficulties in accessing healthcare, with 1 in 5 people traveling over 10km by non-motorized transport to reach a facility.
The new SLAS Technology auto-commentary discusses the challenges of gathering analytical measurements and introduces realized-based measurement systems as potential replacements. These systems use robots as central system integrators, providing flexibility and enabling decentralized open systems.
New research published in INFORMS journal Transportation Science reveals that optimizing delivery driver shifts can reduce pick-up time by up to 50%, while choosing restaurants closer to the drop-off location can reduce delivery time by 17%. Additionally, order bundling has a limited cost improvement of less than half a percent.
Researchers found that dockless bike-share programs outperformed Pronto due to their high density and accessibility. The study suggests service providers should deploy large-scale systems with plenty of bikes or stations to achieve highest ridership.
A new mathematical optimization model introduced in the INFORMS journal Transportation Science can reduce extreme flight delays by as much as 20-30% on average, while increasing crew salary costs by only 2-3%. This approach allows airlines to balance delay reduction with buffer placement costs.
A study by the University of Washington found that Americans value their commute time at $25 per hour when driving themselves, compared to $21 per hour for ride-hailing services. However, when driverless cars were considered, respondents preferred driving themselves due to increased perceived costs.
A new study by UBC researchers provides a comprehensive model for hydrogen adoption in British Columbia, recommending a refuelling infrastructure and production plants to support the adoption of hydrogen-powered cars. The study sees significant growth in hydrogen demand every year, provided policies like B.C.'s carbon tax are maintained.
A study using Medicare claims data found that Black and Hispanic patients were less likely to visit the same ED as white patients living in the same area. Patients from these racial/ethnic groups were more likely to be transported to a safety-net ED, highlighting disparities in emergency care.
Researchers used mosquito genomes to track the Asian tiger mosquito's spread from Albania to Europe, the US, and Africa. Human activities like tire trade facilitated its rapid expansion, posing an increasing public health risk.
Researchers at USC Center for Body Computing found that free ride programs can help older adults attend medical appointments more frequently, reducing social isolation. The study provided unlimited Lyft rides to patients with chronic diseases, resulting in improved quality-of-life experiences.