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Natural defenses: UF researchers use living infrastructure to protect Florida’s shores
Armed with a $7 million grant from the Army Corp of Engineers, University of Florida researchers are working to bolster shoreline resilience and restore troubled wetlands in St. Augustine through nature-based solutions. “The idea of nature-based solutions is to build what we sometimes refer to as green infrastructure, to use living, natural components as the building blocks,” said Andrew Altieri, Ph.D., an assistant professor with the Engineering School of Sustainable Infrastructure & Environment and interim director of the Center for Coastal Solutions, also known as CCS. Instead of building man-made structures to protect wetlands, for example, restoration crews can move dredged natural sediment otherwise destined for costly disposal to increase wetlands’ size and elevation, restoring their ability to protect shorelines from storm surge, keep pace with sea-level change, filter toxins, store carbon and provide habitats for wildlife. The project is in concert with the Army Corps of Engineers’ goal to naturally reuse and repurpose at least 70% of dredged sediment into other natural areas to benefit habitats and restoration by 2030. “It is critical to understand, test and model how natural processes can be harnessed and strategically implemented to sustainably meet the challenge of rapidly intensifying coastal hazards while also providing environmental, economic and social benefits,” Altieri wrote in the project’s technical summary. Overall, the multi-disciplinary project closely examines patterns and processes of change in coastal landscapes. That includes wetlands — marshes and mangroves — and beach/dune systems. The project comes as these coastal areas are facing threats both natural and human. These areas are essential to wildlife, air quality, native vegetation, storm protection and the overall health of the ecosystem. A 2008 study by the U.S. Fish and Wildlife Service reported a net loss of about 361,000 acres of wetlands in the coastal watersheds of the eastern United States between 1998 and 2004 — an average net decrease of 59,000 acres each year, with experts citing sea-level rise as one of the primary factors. “We're trying to understand the patterns of that loss and what's leading to it,” Altieri said. “These systems are essentially the first and sometimes last line of defense against coastal hazards, risks that include storm surges and coastal flooding. They are forming a buffer, this kind of protective layer on our coast. But they're changing, generally for the worse and are in danger of being lost.” With this project, the CCS-led research team plans to advance the science, technology and engineering principles of nature-based solutions. With marshes, the primary concern is elevation loss, which can drown the vegetation critical to the ecosystem. They are sinking, eroding and succumbing to sea-level changes, Altieri said. “The plants are really important for trapping sediment and holding sediment,” he said. “You lose some of the plants, then you get more erosional loss and a lack of the accumulation of sediment.” Sediment is natural muck on the bottom of water bodies. “If we can add sufficient sediment to increase the elevation to a level where the plants thrive, then they will retain that sediment that's been added to hopefully trap more sediment and accumulate more biomass through their growth,” Altieri said. “It’s something that may need to be done periodically. You may stop that decline, but you may even reverse the process of loss and change the trajectory.” As a bonus, this process saves the cost of disposing of dredged sediment, which is usually piped offshore or to a materials-management area. This project is the next step for CCS-led coastal resilience efforts in St. Augustine. In 2024, CCS and WSP Environment & Infrastructure Inc. launched a coastal wetlands-restoration project to keep pace with sea level change and erosion. The 2025 work is a standalone project with separate funding, Altieri said. The current project also has more research disciplines and project partners, including UF researchers from Landscape Architecture, Geological Sciences and the School of Forest, Fisheries and Geomatic Sciences. “Storm surges, wave energy, coastal flooding – all of that can be slowed or reduced because of wetlands,” Altieri said. “They are basically like shock absorbers. These wetlands, beaches and dunes can be lost or eroded to some degree, but the upland area behind them is essentially protected.” Researching the resilience of dunes comes with a different set of dynamics. Here, they are looking at the plants that support the dunes – sea oats and panic grass, for example. That vegetation also provides a habitat for animals such as beach mice, turtles and birds. On the beach, the team also is looking at water energy and how grain size affects the stability of dunes. “It’s understanding water movement, water energy. How is that interacting with depositing sediment, moving sediment around, sorting sediment? With water, you tend to carry finer particles further than coarser materials,” he said. What does success look like after the award’s five years end? “We'll have an understanding of what's changing on our coasts and why,” Altieri said. “We'll have an understanding of how we can work within this system to modify the natural components and utilize the natural processes. And we will hopefully be working with partners through additional funding mechanisms to actually apply that towards implementation of solutions to increase coastal resilience.” The team also includes Peter Adams, Department of Geological Sciences; Julie Bruck, Department of Landscape Architecture, School of Landscape Architecture and Planning; Maitane Olabarrieta, ESSIE; Alex Sheremet, ESSIE; Nina Stark, ESSIE; Ben Wilkinson, Geomatics Program, School of Forest, Fisheries, and Geomatics Sciences; and Xiao Yu, ESSIE.
How UF researchers are helping Floridians to build resilience
When Hurricane Idalia hit the Big Bend region of Florida in 2023, Jeff Carney and his team were watching. A coalition of architects, planners, and landscape architects led by Carney worked closely with the tiny Gulf island of Cedar Key, which is particularly vulnerable to hurricanes, to prepare for this moment. The researchers had modeled for city officials how a major storm would flood the city’s core services. “Idalia caused flooding exactly where the maps said it would, including city hall, the historic downtown, older homes, and many streets,” Carney said. After the storm, Cedar Key moved city hall to higher ground, as outlined in the plan. And just in time. Barely a year later, Cedar Key was hit even harder by Hurricane Helene. Between the storms, Carney’s group had worked with the city to refine their storm preparation. The new plan focused more on resilience-boosting projects, like improving drainage around the city. Cedar Key finalized their plans just weeks before Helene. “A lot of the projects we put forward in this plan are in the process of seeking additional funding after Helene,” Carney said. A professor of architecture at the University of Florida, Carney directs the Florida Institute for Built Environment Resilience, or FIBER. A research institute in UF’s College of Design, Construction and Planning, FIBER engages with communities to understand how the designs of buildings and cities expose Floridians to risks — not just storms, but also excessive heat, poor air quality, even a lack of health care. FIBER faculty then work with cities to mitigate these hazards. By preparing for emergencies, upgrading buildings, and providing targeted services, communities across Florida are bolstering the resilience of their residents, all with expert help from UF researchers. Preparing to weather big storms That kind of resilience is especially important for some of Florida’s most vulnerable residents. Older and poorer Floridians face higher-than-average risks from natural disasters and other environmental hazards. That vulnerability was apparent in Cedar Key as it weathered the last two hurricane seasons. Centered around aquaculture and tourism, Cedar Key seems in many ways to be thriving. Yet, with the feel of a small fishing village, roughly 13% of its nearly 1,000 full-time residents are considered to be financially disadvantaged, according to U.S. Census data. Poorer residents may also have a harder time walking away from coastal communities devastated by storms. With savings invested into damaged homes and jobs tied to the local area, less-wealthy residents often have no choice but to stay and rebuild. Carney’s team helps people see the opportunities for rebuilding with a clearer vision of a future where rising sea levels are a reality. “You capture people’s attention and excitement when you can offer them options that are not doomsday,” said Carney, who has been working in Pine Island and Matlacha in Southwest Florida’s Lee County to help residents affected by recent storms prepare for the future. “There’s a lot of opportunity for rebuilding as long as you don’t try to have it be business as usual. We help people see how redevelopment can provide a community asset for the future,” he added. “We try to paint the picture of all the possible scenarios so people can find their own comfort level. It puts them in the driver’s seat.” Aging with fewer choices While that kind of agency is empowering, it can be harder to come by as people retire and find themselves facing tough decisions on fixed incomes. That’s a common experience in Florida, which has a larger proportion of seniors than any other state, due in part to its popularity as a retirement destination. More than 10% of Americans over the age of 65 live below the federal poverty line. This population often finds themselves moving to less safe places as they age. “Older people with more social vulnerability — such as low income or poor health — have a tendency to move to worse places,” said Yan Wang, Ph.D., a professor of urban and regional planning in the UF College of Design, Construction and Planning. “They are more likely to move to places with less economic stability, with less access to health care, and with more exposure to extreme weather.” Wang and postdoctoral researcher Shangde Gao, Ph.D., recently published a study that uncovered the risks low-income seniors face when moving. Compared to their peers with higher incomes, poorer seniors were more likely to end up in neighborhoods lacking access to health care facilities. To address these kinds of disparities, UF Health has launched mobile health units that can reach people who have trouble traveling to health centers, including low-income seniors. The Mobile Outreach Clinic provides primary care and referrals for specialists. And the newly launched cancer screening vehicle, which serves all of North Central Florida, can help catch the disease in the early stages when it is easiest to treat. It’s not just finding health care that’s a struggle. Older adults from minority racial groups were also more likely to increase their exposure to poor air quality and to natural disasters like flooding and hurricanes when they moved, Wang and Gao discovered. “If we understand the trend and causes of these income disparities better, we could better prepare some places with more health care resources or better hurricane preparation for these older populations,” Wang said. Building safer, healthier homes That preparation is happening right now in Jacksonville, not just for big storms but for the everyday nuisances and hazards — even the ones people are exposed to in their own homes — that threaten people’s lives and health. The Jacksonville Restore and Repair for Resiliency research initiative was founded to address these kinds of risks while improving energy efficiency. The R3 initiative, as it’s known, is a home remodeling program organized by a slew of community partners and supported by FIBER research on the impact of housing quality on health. The project aims to keep longtime residents of the Historic Eastside in their homes while addressing the home hazards that put people at risk for medical complications like asthma attacks and emergency room visits. “The designs of buildings impact human health and well-being,” said Lisa Platt, Ph.D., the lead researcher with the Jacksonville program and an assistant professor of interior design with FIBER. “Our research is helping the team prioritize the home improvements that will benefit residents’ health the most.” Jacksonville’s Eastside faces a lot of challenges. The population is older than the city as a whole. Roughly three-quarters of residents are over the age of 60, and the poverty rate is over 40%. Yet more than a third of residents own their own homes. Often passed down from previous generations, some of the houses are now over a century old and struggle to keep the intense Florida heat and humidity out. Platt’s research has modeled how things like high heat days — only growing more common in a warming world —are associated with increased emergency room use and poor perceived physical and mental health. That science helps guide the community partners to prioritize providing air conditioning and better insulation to protect Historic Eastside residents. To date, the Jacksonville program is targeting up to 70 homes for renovation. Builders have fixed holes in roofs, replaced drafty windows, and hooked up air conditioning for the first time, keeping the heat and humidity at bay and protecting residents’ health. Now the R3 initiative is applying for federal grants to expand the program. “I think the best way to approach this kind of community action research is with humility and outreach. Community members have amazing expertise. I always say, ‘I can build models to analyze the problem, but you are the ones that are the experts,’” Platt said. “That’s where UF can be most useful, is coming in from a perspective of service.”
LSU Lab Helps Louisiana Prepare for Hurricanes, Drought, even Saharan Dust
Any hurricane that forms in the Gulf of America is a direct threat to Louisiana and its neighboring states. But most seasonal forecasts focus on the entire North Atlantic Basin, including areas where storms may never come close to any land, much less the U.S. Gulf Coast. A Gulf-specific forecast developed at LSU’s Coastal Meteorology (COMET) Lab addresses that issue by providing storm information specifically geared toward the Gulf region. The lab is run by Paul Miller, an associate professor at LSU who founded it in 2019. “We decided that a Gulf-specific forecast could help state officials and Gulf-area residents better understand how active the upcoming season might be in their part of the Atlantic,” said Miller, who teaches in the Department of Oceanography & Coastal Sciences in the College of the Coast & Environment. Miller said the LSU-Velocity Risk Gulf Hurricane Outlook is one example of how the COMET Lab delivers real benefits to Louisiana. “A lot of forecasts tend to align with each other each year. But ours works a lot differently than some of the other forecasts that are geared towards larger areas of the ocean,” he said. “We’re not the world’s leading hurricane research lab—and we don’t try to be. Instead, we prioritize meeting the largest research gaps relevant to Louisiana residents, spanning a wide variety of weather hazards. “We want to make sure Louisianans experience a clear return-on-investment from our lab’s activities.” Ways the lab supports the state also include: Helping forecast storm surge in real time and informing the decision on when to close flood barriers before a tropical system hits land. Developing rainfall models to support flood prevention efforts. Studying weather patterns that cause drought and low coastal water levels that can lead to marsh loss during dry spells on the Gulf Coast. Saharan Dust Research One area of study that incorporates both air quality and tropical weather is the lab’s research on Saharan dust clouds, which are blown across the Atlantic in an air mass called the Saharan Air Layer, or SAL. “So, this sort of far-off distant concept of Saharan dust is actually something that is kind of important to folks here in Louisiana,” Miller said. This dust can shut down thunderstorm activity in the U.S. Caribbean territories, a key area of research in the COMET Lab, and cause respiratory problems when it reaches the Southeast U.S. The SAL can also suppress hurricane activity in the Atlantic. “Our lab just launched a new project with the Office of Naval Research to determine how dust-dimmed sunlight can affect ocean temperatures in the Atlantic’s most active hurricane breeding grounds,” Miller said. Read the full story here.
Santa Ana Winds: Nature's Power and Its Impacts on Communities
The Santa Ana Winds, a defining phenomenon of Southern California, are more than just a weather pattern—they are a powerful force shaping the region's environment, safety, and culture. These hot, dry winds can dramatically exacerbate wildfire risks, affect air quality, and even influence human behavior. Understanding the Santa Ana Winds is vital for addressing broader issues of climate change, disaster preparedness, and community resilience. Their far-reaching effects provide journalists with a range of compelling story angles, such as: The meteorological science behind the Santa Ana Winds and why they occur Their role in intensifying wildfires and efforts to mitigate these risks Health impacts, including effects on air quality and respiratory conditions Psychological and behavioral studies linked to wind-driven stress and aggression Historical and cultural significance of the Santa Ana Winds in Southern California How climate change might alter the frequency and intensity of these winds If you're covering the massive fires in California, let us help with your ongoing coverage. Connect with an expert about the Santa Ana Winds: To search our full list of experts visit www.expertfile.com
Aston University research centre to focus on using AI to improve lives
• New centre specifically focuses on using AI to improve society • Current research is designed to improve transport, health and industry • “There have been a lot of reports focusing on the negative use of AI...this is why the centre is so important now.” Aston University researchers have marked the opening of a new centre which focuses on harnessing artificial intelligence (AI) to improve people’s lives. The Aston Centre for Artificial Intelligence Research and Application (ACAIRA) has been set up to become a West Midlands hub for the use of AI to benefit of society. Following its official opening, the academics leading it are looking to work with organisations and the public. Director Professor Anikó Ekárt said: “There have been a lot of reports focusing on the negative use of AI and subsequent fear of AI. This is why the centre is so important now, as we aim to achieve trustworthy, ethical and sustainable AI solutions for the future, by co-designing them with stakeholders.” Deputy director Dr Ulysses Bernardet added: “We work with local, national and international institutions from academia, industry, and the public sector, expanding Aston University’s external reach in AI research and application. “ACAIRA will benefit our students enormously by training them to become the next generation of AI practitioners and researchers equipped for future challenges.” The centre is already involved in various projects that use AI to solve some of society’s challenges. A collaboration with Legrand Care aims to extend and improve independent living conditions for older people by using AI to analyse data collected through home sensors which detect decline in wellbeing. This allows care professionals to change and improve individuals’ support plans whenever needed. A project with engineering firm Lanemark aims to reduce the carbon footprint of industrial gas burners by exploring new, more sustainable fuel mixes. Other projects include work with asbestos consultancy Thames Laboratories which will lead to reduced costs, emissions, enhanced productivity and improved resident satisfaction in social housing repairs and a partnership with transport safety consultancy Agilysis to produce an air quality prediction tool which uses live data to improve transport planning decisions. The centre is part of the University’s College of Engineering and Physical Sciences and its official launch took place on the University campus on 29 February. The event included a talk by the chair of West Midlands AI and Future Tech Forum, Dr Chris Meah. He introduced the vision for AI within the West Midlands and the importance of bringing together academics, industry and the public. Current research in sectors such as traffic management, social robotics, bioinformatics, health, and virtual humans was highlighted, followed by industry talks from companies Smart Transport Hub, Majestic, DRPG and Proximity Data Centres. The centre’s academics work closely with West Midlands AI and Future Tech Forum and host the regular BrumAI Meetup. About Aston University For over a century, Aston University’s enduring purpose has been to make our world a better place through education, research and innovation, by enabling our students to succeed in work and life, and by supporting our communities to thrive economically, socially and culturally. Aston University’s history has been intertwined with the history of Birmingham, a remarkable city that once was the heartland of the Industrial Revolution and the manufacturing powerhouse of the world. Born out of the First Industrial Revolution, Aston University has a proud and distinct heritage dating back to our formation as the School of Metallurgy in 1875, the first UK College of Technology in 1951, gaining university status by Royal Charter in 1966, and becoming The Guardian University of the Year in 2020. Building on our outstanding past, we are now defining our place and role in the Fourth Industrial Revolution (and beyond) within a rapidly changing world. For media inquiries in relation to this release, contact Nicola Jones, Press and Communications Manager, on (+44) 7825 342091 or email: n.jones6@aston.ac.uk
#Expert Q&A: Amid the Wildfire Haze, NJIT's Alexei Khalizov Explains What's in the Air
The soot that permeated the air in New Jersey and New York this summer — courtesy of massive wildfires in Canada — is exactly what a New Jersey Institute of Technology professor is studying to determine its impact on climate change. Alexei Khalizov, an associate professor of chemistry and environmental science, is partnering with Associate Professor Gennady Gor on the three-year project, which began last year and is supported by a $620,000 grant from the National Science Foundation. Specifically, they’re examining the soot created by wildfires and the burning of fossil fuels in hopes of better predicting its impact on climate. Khalizov, who’s been at NJIT since 2013, took time out from his research to explain what millions of residents of N.J. and N.Y. are experiencing as a result of the wildfires hundreds of miles to the north. Q: What’s in the smoke? Small particles and some gas chemicals. These particles and chemicals were released by wildfires and they were picked up by the air mass and carried all the way to New Jersey from Canada. Those particles are extremely small: you can stack maybe a hundred of such particles across single human hair thickness. Q: Is breathing it the equivalent of smoking a pack of cigarettes? That would be a reasonable comparison. A cigarette is made of plant material. When it smolders and burns it releases particles that are very much like those particles from wildfires. Maybe the only difference is that the wildfires have no nicotine. But they have lots of other chemicals. Q: What factors contribute to the density of the smoke? Well, it's a major wildfire. It covers a huge territory in Canada. And the meteorology is such that this smoke is carried all the way from Canada to the U.S. without significant dilution. And due to that, the concentration of those particles is very high. Q: When did we last experienced something of this magnitude? We had some Canadian and Alaskan wildfires a few years ago. And air mass transport brought the smoke all the way to New Jersey, but it wasn't as bad as what we are observing today. Q: What about in terms of EPA standards? The Environmental Protection Agency has a list of criteria pollutants. One of those pollutants is particles smaller than 2.5 microns. And typically, if the concentration of those particles exceeds 35 micrograms per cubic meter, the air is considered unhealthy. When I looked at the map of pollution today (June 7, 2023), it showed that throughout the majority of New Jersey, the concentration is around 90 micrograms, which is two to three times higher than this unhealthy threshold. And actually, there is a location, I believe it's around Paterson, where the concentration is 140 micrograms, which is four to five times above the threshold. Q: Can the wildfires in South Jersey be contributing to this? It's possible, but probably it's not a major contribution. Also, if you look at the wind pattern, it's probably not a major factor at all. Q: Why is wind unable to disperse the smoke? For the wind to disperse the smoke, one needs to mix clean air with all this contaminated air and the amount of contaminated air is so high that there’s no clean air around to actually produce any dilution. Q: Why is there so much haze? It’s because of the continuous inflow of air, which is contaminated by emissions from the wildfires. The haze itself has a relatively short lifespan. Q: How does temperature change affect the smoke? If the temperature increases that may accelerate the rate of some chemical reactions that will also be accelerated by the sunlight. And that's one reason why the smoke that was released in Canada is not exactly the same smoke that we experience in New Jersey. As this haze is traveling over three to six hundred miles, it undergoes a number of chemical reactions and even the smell changes. You know how freshly released wood smoke smells — it's actually pretty pleasant. What we're smelling now, it's not pleasant at all. That's the result of those chemical reactions, which makes this even more unhealthy. Q: Will rain immediately clear the smoke? Yes, it will. If we could have rain, then the rain would remove the majority of these particles. And in fact, I believe we've been experiencing the smoke for several days, almost a week now. It would go up and decrease. And we’ve had several rains and those rains did really clear out some smoke. Q: What can we do individually and collectively to protect ourselves? We can help ourselves by staying indoors and wearing masks if you have to go outside. Certainly, exercising outside is not a good idea even while wearing a mask. Also, if you have a central air conditioning system, you can turn on the fan to run the air through the filter, which will remove some of these particles. It depends on what kind of filter you have — high efficiency or regular. Q: What kind of mask? Make sure that it's an N-95 mask, not a surgical mask. A surgical mask is not is not going to help you at all. Q: How does what we’re experiencing relate to your research? My collaborator and I received a major grant from the National Science Foundation to study the particles released by combustion. As they travel through the air, they change both in shape and in composition. And these changes affect their toxicity and they affect their impact on climate. These particles actually are one of the warming agents. So, we hope that within about three years of working on this project, we’ll be able to explain better what happens and then modelers will be able to predict the impacts of such events with better accuracy. Looking to know more - we can help. Alexei Khalizov is available to discuss this important topic with media - simply click on his icon now to arrange an interview.
Georgia Southern University’s Institute for Health Logistics and Analytics (IHLA) and the Georgia Department of Public Health (DPH) have once again joined forces to reduce the spread of COVID-19 in confinement facilities across the state. DPH has awarded the IHLA a contract worth $10 million to complete a second year of work. “Throughout the pandemic, COVID-19 was a significant cause of illness and death among confinement facility residents and employees,” said Jessica Schwind, Ph.D., director of IHLA. “SARS-CoV-2, the virus that causes COVID-19, is still circulating and we need to continue to support these facilities in reducing viral transmission.” With the funding, the IHLA assists with the purchase and coordination of allowable COVID-19 mitigation items for enrolled facilities across the state of Georgia. The focus in year two of the project is to improve air quality and offer a seamless process for confinement facilities. Recipients do not incur any direct costs and the paperwork and the procurement process is handled entirely by Georgia Southern. “We work with each facility to determine what they need,” said Kathryn Stewart, budget manager at IHLA. “We then handle the ordering, payment and delivery. For facilities that need fairly standard supplies, we have an easy order form process. For those with complex requests, we work with them individually to make sure they receive the best solution for their particular needs.” Facilities in Georgia are eligible to receive $25,000 to $250,000 of COVID-19 mitigation supplies. The amount awarded is determined by the number of detainees each facility is licensed to hold. Eligible items include portable HEPA filter units to improve air quality, personal protective equipment and cleaning and disinfecting supplies. “We are really proud of the work this institute has accomplished,” said Carl Reiber, Ph.D., Georgia Southern’s provost and vice president for academic affairs. “Not only has the IHLA maintained a focus on public impact research, it is a shining example of the significant role Georgia Southern is taking on improving health across the state.” All eligible correctional confinement facilities, which includes adult prisons and jails, youth detention centers and holding cells in the state of Georgia, are encouraged to enroll, even if they received funding in the previous cycle. This project is supported by the Centers for Disease Control and Prevention’s Detection and Mitigation of COVID-19 in Confinement Facilities Epidemiology and Laboratory Capacity Grant Program, which provided a financial assistance award to the Georgia Department of Public Health. For more information and to enroll in the program visit the project's website: The IHLA at Georgia Southern provides comprehensive solutions to improve and advance the health of populations around the world. The institute specializes in planning, evaluation, capacity building and research services to enhance the health infrastructure in organizations and communities. To learn more or to speak with Jessica Schwind, Ph.D., director of IHLA - simply contact Georgia Southern's Director of Communications Jennifer Wise at jwise@georgiasouthern.edu to arrange an interview today.
AI-powered cruise control system may pave the way to fuel efficiency and traffic relief
The CIRCLES Consortium, consisting of Vanderbilt University, UC Berkeley, Temple University and Rutgers University-Camden, in coordination with Nissan North America and the Tennessee Department of Transportation, concluded a five-day open-track experiment on Nov. 18. Congestion Impacts Reduction via CAV-in-the-loop Lagrangian Energy Smoothing (CIRCLES) Researchers tested an AI-powered cruise control system designed to increase fuel savings and ease traffic using 100 specially equipped Nissan Rogue vehicles. The experiment—which ran from Nov. 14 through Nov. 18 on a sensor-filled portion of Interstate 24—is based on the results from an earlier, closed-track study where a single smart vehicle smoothed human-caused traffic congestion, leading to significant fuel savings. A single AI-equipped vehicle could influence the speed and driving behavior of up to 20 surrounding cars, causing a kind of positive ripple effect in day-to-day traffic. The CIRCLES Consortium will spend the next several months analyzing data collected on the AI-equipped vehicles and their impact on the flow of traffic over the duration of the experiment. The test was conducted on the recently opened I-24 MOTION testbed, the only real-world automotive testing environment of its kind in the world. Stretching for four miles just southeast of downtown Nashville, the smart highway is equipped with 300 4K digital sensors capable of logging 260,000,000 vehicle-miles of data per year. The CIRCLES Consortium research is supported by the National Science Foundation and the U.S. Departments of Transportation and Energy. Support was also provided by Toyota North America and General Motors. The experiment included Toyota RAV4 and Cadillac XT5 vehicles. Preliminary vehicle and traffic flow detection in the I-24 Mobility Technology Interstate Observation Network (MOTION). “On November 16 alone, the system recorded a total of 143,010 miles driven and 3,780 hours of driving. The I-24 MOTION system, combined with vehicle energy models developed in the CIRCLES project, provided an estimation of the fuel consumption of the whole traffic flow during those hours. The concept we are hoping to demonstrate is that by leveraging this new traffic system to collect data and estimate traffic and applying artificial intelligence technology to existing cruise control systems, we can ease traffic jams and improve fuel economy,” the CIRCLES team said in a joint statement. “Nissan has always been a pioneer in automotive innovation, and with our long-term vision, Nissan Ambition 2030, we know our future is autonomous, connected and electric,” said Liam Pedersen, deputy general manager at the Nissan Alliance Innovation Lab in California’s Silicon Valley. “CIRCLES shares our common goal of building a safer, cleaner world by empowering mobility.” “When it comes to transportation and mobility in Tennessee, we are at a critical juncture,” said Deputy Governor and TDOT Commissioner Butch Eley. “Traffic congestion is now becoming more prominent throughout Tennessee, and not just in urban areas. Addressing these challenges will force us to think critically about solutions, as transportation infrastructure projects traditionally are not identified nor completed before traffic congestion more dramatically affects our quality of life. One of these solutions is greater use of technology to enhance mobility. We are confident that this project and others like it will further strengthen Tennessee’s reputation for being a hub of automotive excellence.” “The I-24 MOTION project is a first-of-its-kind testbed, where we’ll be able to study in real time the impact connected and autonomous vehicles have on traffic in an open road setting,” said Meredith Cebelak, adjunct instructor in civil and environmental engineering at Vanderbilt and Tennessee transportation and transportation systems management and operations department leader at Gresham Smith. “The permanent infrastructure has been designed and installed, meaning the testbed will always be ‘on’ and available to researchers. By unlocking a new understanding of how these vehicles influence traffic, vehicle, infrastructure, and traffic management strategies, design can be optimized to reduce traffic concerns in the future to improve safety, air quality and fuel efficiency.” “Partnership across universities, government and the private sector is the key to pioneering projects like this one,” Vice Provost for Research and Innovation Padma Raghavan said. “From its earliest inception, all the partners in this effort have played vital roles. That trusted collaboration continues as the team analyzes results to seek new insights to address pressing challenges in transportation in Tennessee and beyond.”
Research offers larger implications for health care environments Some of the most dangerous contaminants aren’t visible to the naked eye, but Georgia Southern University researchers are working to protect construction workers from this invisible danger. In the construction world, chronic exposure to crystalline silica, which is present in dust particles created from drilling, grinding and sawing on job sites, can lead to serious medical issues and preventable fatalities. Atin Adhikari, Ph.D, associate professor in Georgia Southern’s Jiann-Ping Hsu College of Public Health, has been awarded a $28,400 grant from Poma 22, LLC, to test new air curtain technology that could protect construction workers from hazardous fine dust particles. As the principal investigator (PI), Adhikari will work with co-PIs Aniruddha Mitra, Ph.D, professor of mechanical engineering, and Saman Hedjazi, Ph.D, assistant professor of civil engineering and construction management, from Georgia Southern’s Allen E. Paulson College of Engineering and Computing. “This research is important and innovative because we will test a revolutionary technology against fine dust exposure in construction sites that integrates a filtered air duct system into a hard hat, creating an air curtain or armor,” said Adhikari. “If we get a promising result, then this technology can be applied against other types of particles including bioparticles present in healthcare work environments.” Graduate research assistant Victoria Clower, who is earning a Master of Public Health in environmental health sciences, values her involvement in life-changing research. “This study of new technology on dust exposure control in construction sites will be very valuable with the quantifiable results showing the effectiveness of the air curtain technology,” she said. “As someone who is interested in occupational health, I am excited to work on a study that may provide an opportunity for other innovations for workplace safety to improve.” The U.S. Department of Labor’s Occupational and Safety Health Administration estimates roughly 2.3 million people in the U.S. are exposed to silica at work. Workers at risk can develop lung cancer, chronic obstructive pulmonary disease (COPD) and kidney disease. In addition, approximately 500 preventable silica-related deaths occur each year. As an environmental public health researcher, Adhikari has published numerous peer-reviewed studies on air quality and filtration. This project will focus on testing a newly developed respiratory protection technology, the Z Flow Pro helmet, which provides a downward draft through the front of the helmet, creating an air curtain in front of the worker’s face. Previous research has found that the air curtain is strong enough to deflect larger, visible particles. Adhikari and his team will conduct comprehensive field testing of this new technology to determine if it is also effective protection against fine particles, providing valuable information and justification on the readiness level of this product to protect construction workers. If you’re a journalist looking to cover this new testing that Georgia Southern is a major part of – then let us help. Atin Adhikari is available to answer your questions - simply reach out to Georgia Southern Director of Communications Jennifer Wise at jwise@georgiasouthern.edu to arrange an interview today.
Aston University pollution expert praises Clean Air Zone roll out plans across UK
• Dr Stephen Worrall believes Birmingham’s Clean Air Zone is encouraging fewer drivers into city centre • The pollution expert said statistics show motorists are ‘changing their behaviour’ • He praised other cities for following suit but says changes need to come more quickly. A leading expert in air pollution from Aston University has examined available data on how many vehicles have paid to enter Birmingham’s Clean Air Zone (CAZ) and has said people’s behaviours are changing Atmospheric chemist, Dr Stephen Worrall, praised the introduction of Birmingham’s CAZ which launched on 1 June, saying it was an important step in tackling air pollution in the city and would have a considerable impact on people’s health. Whilst the full impact of the CAZ on pollution levels won’t become clear until 2022, Dr Worrall said since the “Go Live Date” the traffic data revealed that the number of non-compliant vehicles being driven in the zone was decreasing markedly. “In the first two weeks of June before charging was introduced, the daily number of non-compliant vehicles being driven within the CAZ was at an average of 18,787. “After charging was introduced, this dropped significantly to 11,850 for the remainder of June and this number has continued to fall, with the last reported daily average of 10,800 for August. “This isn’t just your average motorist with a car either, as the data shows similar trends for other categories of vehicles with the biggest improvement observed in light goods vehicles (LGVs). Over 75% of these vehicles were complying with the CAZ in August versus just 63% in June. This is a significant and sustained reduction which clearly demonstrates that people are modifying their behaviours,” he said. Dr Worrall added that the data was also able to hint at the manner in which people were modifying their behaviour, with a possible increase in public transport use, car sharing or a reduction in overall number of journeys. “Some people are upgrading their vehicles to newer, less polluting models as there has been a small rise of about 2,500 in the number of complaint vehicles entering the CAZ on a daily basis. However, this number is dwarfed by the approximately 8,500 reduction in the daily number of non-complaint vehicles. The upshot of this is that the total number of vehicles entering the CAZ every day has dropped by roughly 6,000 (around 6%). 6,000 fewer of the most polluting vehicles in our city centre is a real positive and a step in the right direction to improving our air quality and health,” he said. Air pollution particularly affects the most vulnerable in society, including children, and older people, and those with heart and lung conditions. The annual health cost to society of the impacts of particulate matter alone in the UK is estimated to be around £16 billion*. Levels of NO2 in Birmingham frequently exceed 45 to50 micrograms per cubic meter, mainly caused by road traffic emissions, with certain hotspots exhibiting even greater values such as the measuring site at St Chads Queensway where the last reported yearly average for the city centre was as high as 74 micrograms per cubic meter. The primary aim of the CAZ is to reduce the levels of NO2 to 40 micrograms per cubic meter. Dr Worrall said that although CAZs weren’t directly designed to address greenhouse gas emissions, if as suggested they result in less people using their vehicles for journey, then this would have an impact on emissions. “Whilst the CAZ target is to reduce nitrogen dioxide (NO2) levels, the knock-on effect of this reduction in car use will mean a reduction in pollution in general, including greenhouse gases such as CO2. This is really important and suggests that other cities need to be acting now rather than later. Bath has implemented a similar but less stringent system, London recently extended its ultra low emission zone (ULEZ) area and Portsmouth’s CAZ will be coming live shortly too, but other cities who have plans in the pipeline should really bring them forward as a matter of urgency,” he said. Dr Worrall added that with current COP26 discussions bringing pollution to the forefront, it was important to continue with awareness. “These policies are all small pieces in the puzzle for reducing emissions from transport and getting people to make wiser choices about the vehicles they own and buy, and as COP26 is making very clear we need to be doing all of these things now to save our planet” he said. Dr Worrall has great experience in the subject, having spent a portion of his post-doctoral research in Beijing where he took live air pollution measurements, monitored problematic levels and discussed with international colleagues’ ways to address these issues. Read more about the College of Engineering and Physical Sciences at Aston University, here: https://www.aston.ac.uk/eps ENDS * Defra (2017) Air quality plan for nitrogen dioxide in the UK
