A recent study by Emory University researchers analyzed socio-economic data and environmental indicators in Portland, Oregon, to understand current urban patterns of privilege and disadvantage. The study found that redlining, while a significant factor, is not the only contributor to urban inequality, and that gentrification and displa...
Researchers at UBC have developed tools that combine high-resolution satellite heat mapping with shade and equity modelling to identify urban hot spots and determine where new trees can deliver the greatest benefits. The tools can pinpoint areas as small as 700 square metres, about the footprint of a large residential lot, and suggest ...
A new study evaluated the ethical properties of large language models (LLMs) in generating advice for urban design and health, finding that they avoid harm but lack consistency on community participation and human oversight. The study suggests that LLMs could serve as an initial input for urban designers, but should not replace profess...
A US study found that affluent neighborhoods are at higher risk of fire, but tend to recover faster, with 78% of severely burned areas failing to return to pre-fire temperatures within five years. Higher-income areas also experienced smaller losses in vegetation and recovered temperatures more quickly.
A new PNAS special feature examines how segregation shapes environmental risks and benefits in cities, including access to water, safety from floods, and exposure to extreme heat. The authors argue that understanding segregation as a social-ecological system can help break cycles and build more equitable cities.
A new study has calculated the weight of 606 million buildings globally, revealing patterns in material-use efficiency across cities. Cities with dense, uniformly short buildings maximize floor space per person while minimizing materials used.
A new economic valuation tool, HAUS, links environmental features to health outcomes and their associated economic costs, supporting healthier urban development choices and reducing disease incidence. The tool has been adopted by local authorities and is being used to make informed investment and planning decisions.
A multidisciplinary group of researchers examines potential interactions between urban green spaces, vector-borne diseases, and climate change to inform 21st century public health decisions. The study highlights the need for balancing benefits of urban green spaces with risks of vector-borne diseases under climate change.
A new study of 22 million property listings across 30 European countries reveals that nearly half of people on average income can only afford a one-bedroom apartment or studio flat. The study highlights the emerging crisis over affordable housing, particularly in densely populated areas such as towns and cities.
Researchers analyzed 8.1 million emergency department visits to identify the most at-risk patients during heat waves, offering a near-real-time opportunity to implement protective measures. The study suggests that delays in identifying those most at-risk are no longer necessary, and timely evidence is increasingly essential for effecti...
A study of 25 European cities found that only 11.6% of climate strategies include green spaces, despite their potential to alleviate climate change effects such as heatwaves and heavy rain. Cities prioritize measures to reduce greenhouse gas emissions, but neglect adaptation strategies that incorporate green spaces.
A study by the University of Queensland suggests that urban parks lack vital midstorey vegetation, which is essential for small animals and birds. The researchers propose designing parks with denser, midstorey vegetation to improve the quality of urban green space and support wildlife, while also promoting community wellbeing.
Researchers from Cornell University have created an interactive map identifying 1.8 million individual trees in New York City, which could optimize tree placement for cooling in cities worldwide. The map, using satellite imagery and on-the-ground datasets, is 82% accurate and includes trees on private property and in natural areas. The...
A PSU study finds that historically underinvested neighborhoods with lower median incomes and higher racial diversity are most vulnerable to multiple climate hazards. These areas, including East Portland, face the highest risk from landslides, wildfires, flooding, and extreme heat.
A study of 103 European cities' climate neutral plans reveals that many rely on carbon removal to compensate for a significant portion of their emissions. Key findings include the energy and transport sectors being major contributors to residual emissions, with only 32% of cities mentioning permanent carbon removal options.
A new McGill University study analyzed six years' worth of data across 309 Canadian neighbourhoods and found that restrictions on short-term rentals result in lower rents. The researchers estimate that these restrictions saved Canadian renters $192.4 million in rent payments each month in 2023.
Assistant Professor Yingxue Zhang's project aims to develop urban AI models that can efficiently process vast amounts of human-generated data to optimize commute times, traffic safety, and more. The model will utilize offline reinforcement learning to tackle spatial-temporal dynamics in urban life.
A nationwide study in Japan suggests that fully remote work and stable long-term care costs can buffer life satisfaction in shrinking small and medium-sized cities. For adults, work-life balance became more strongly associated with life satisfaction, while for older adults, caregiving support became more important.
A Northwestern University study found that areas with shrinking tree canopy cover experience higher mortality rates, particularly in hot neighborhoods. Protecting mature trees alongside planting new ones is crucial for reducing health risks and strengthening climate resilience.
Researchers from the University of East Anglia examine how heat and daylight patterns transform urban life, highlighting unequal impacts on social groups. They emphasize the need for urban planning to consider bodily and temporal perspectives, integrating social justice considerations into climate adaptation efforts.
A new study found that invasive plant species in low-income neighborhoods boosted mosquito growth and survival, leading to larger mosquitoes capable of transmitting disease. By planting native tree species, cities can reduce mosquito infestations and protect against mosquito-borne diseases.
A new study suggests that future mobility infrastructure can be designed to minimize resource use and carbon emissions. By combining high-resolution global infrastructure mapping with integrated assessment frameworks, researchers found that optimizing infrastructure and production technologies can cut embodied emissions by up to 63%. T...
A new study found that living in greener neighborhoods is associated with lower levels of chronic stress hormones, such as cortisol and cortisone, during the second trimester of pregnancy. This discovery has significant implications for urban planners and policymakers seeking cost-effective ways to improve public health and well-being.
The study identified specific climate measures for each city type, including infrastructure investment in heat protection, urban greening, and transport transition. Rapidly growing cities like Tirana and shrinking cities like Daugavpils benefit from nature-based solutions and infrastructure upgrades.
A new tool, Tree Value Visions, aims to support councils and communities in thinking about the future of trees in towns and cities in a more inclusive way. The research highlights the importance of considering deeper connections people have with nature and integrating urban tree planning across different policy areas.
Researchers develop a comprehensive framework to predict drilling instability in backfilled ground, considering strength differences and asymmetry. The proposed design criterion aims to reduce inclined drilling deviations by at least 10 millimeters per meter of depth.
A new study develops the first high-resolution urban air temperature dataset, providing detailed maps of air temperature across cities. This dataset helps explain why satellite-based data often overestimates heat stress and exaggerates disparities between neighborhoods.
A study tracking 1,500 residents found that infrastructure within 500 meters of home encourages active transportation. The presence of bike lanes was a key factor in keeping people active and promoting cycling. The expansion of bike lanes and parks has encouraged physical activity and public health benefits in São Paulo.
Researchers found that ONIKURU's opening increased stay density near the facility and adjacent commercial areas, but decreased it around JR Ibaraki Station. The study used GPS trajectory data to measure the impact of walkable urban design initiatives on residents' behavior.
A new study finds that cities with slower urban development tend to maintain plant communities and their climate benefits, while faster-developing cities experience declining productivity. The researchers hope their findings will inform urban development strategies to maximize plant growth.
New essay highlights policy priorities to safeguard urban forests, essential infrastructure for climate emergency resilience and equity. The authors emphasize the vital role of these ecosystems in promoting biodiversity and improving public health.
Research from the University of Texas at Austin finds that foreign investment drove up US housing costs, outpacing supply growth. Cities with lax regulations on foreign investors saw prices rise more quickly than in areas with stricter controls.
A study by Osaka Metropolitan University found that Japan's Location Optimization Plan can lead to higher care burdens in small municipalities. Small cities with populations under 50,000 saw increased Long-Term Care Insurance certification counts after adopting the policy, indicating rising service demands.
Researchers found that areas with more vegetation in Taipei's metropolitan area had higher microbial richness and diversity. The Green View Index measures visible greenery from a pedestrian's perspective and correlates strongly with microbial richness.
Urban parks are found to have a significant impact on mitigating heat, air and noise pollution in cities, extending far beyond their boundaries. Parks with tree cover and grassland areas improve thermal comfort and reduce Physiologically Equivalent Temperature by up to 8.5°C.
Researchers at Arizona State University have developed an online tool called Cool Routes that uses real-time weather forecasts and shade data to find the coolest paths for walkers. The tool has been shown to reduce heat exposure by up to 4.5 degrees, making hot-weather walking less of an ordeal.
A Virginia Tech study found that AI image generators consistently produce more realistic and recognizable images of larger metropolitan areas than smaller towns. The research raises questions about how generative artificial intelligence tools portray places and whose communities are most visible online.
A recent study analyzed 138 Indian cities using satellite data and explainable AI methods to show why urban greening needs to be tailored to humidity, canopy structure, and airflow. The findings highlight the importance of considering moisture management and ventilation in urban planning to effectively mitigate heat-related stress.
A new study estimates that urban agriculture in European cities could produce up to 20 million tons of vegetables annually, representing roughly one-third of the region's current vegetable production. This could supply around 28% of Europe's vegetable demand for 190 million Europeans.
The Urban Bee Concept aims to enable coexistence of honeybees and wild bees in urban areas by reducing competition for resources. This is achieved through measures such as heat stress management and floral resource increase initiatives.
A study by ETH Zurich and the University of Wisconsin found that urban development and transport are mutually dependent and have cause-and-effect relationships. The researchers correlated congestion data with city characteristics, such as road network structure, green spaces, and urban function.
Researchers at the University of Cordoba developed MAPLID, a tool that maps city structures and pace based on how residents use their cell phones. The multi-label classification provides information on population density changes and traffic patterns.
A new study by Florida Atlantic University researchers highlights the role of urban planning in increasing pedestrian and bicyclist fatalities in the US. The study reveals that everyday destinations like grocery stores and pharmacies along busy roads significantly increase risk of serious injury or death.
A study by Brown University and Columbia University found that road infrastructure isolates communities, leading to increased schizophrenia-related hospital visits. The Community Severance Index measures physical and social disconnection using roads, traffic, and lack of pedestrian infrastructure.
A new framework proposes a continuum of urbanity, challenging traditional thinking about urban and rural spaces. The study explores how urban, rural, and wild features are interconnected, affecting livelihoods, ecosystems, and human well-being in the Mid-Hudson Valley region.
A new study reveals a post-pandemic cycling boom in major cities, with fatality rates dropping by up to 88% in Paris, 82% in London, and 62% in New York City. The improvement is attributed to the expansion and improvement of cycling infrastructure, including cycleways separated from motor vehicle traffic.
The book analyzes Jakarta through the lens of post-suburbanization, highlighting how rapid expansion, infrastructure politics, spatial fragmentation, and socio-environmental challenges shape its growth. The volume provides a comprehensive English-language analysis of Jakarta's contemporary urban evolution.
A new study from Florida Atlantic University challenges the narrative that rising temperatures will drive Americans away, finding that heat alone isn't driving large-scale out-migration. Instead, population shifts are shaped more by economic opportunity, housing affordability and local quality of life than climate conditions.
A new study reveals that Waikiki is facing a fundamental shift in flood hazards as sea levels rise, transitioning from rainfall-driven floods to tidal process-dominated events. The team identified two key pathways, storm drain backflow and groundwater emergence, which will increase public exposure to sewage-contaminated waters.
A new study reveals that street greenery can reduce heat stress in cities, but its benefits depend on local conditions. The cooling effect is stronger in tropical and continental climates, but weaker in dry and temperate climates.
The study reveals that peri-urban agriculture is key to urban resilience and calls for an urgent shift in planning policies. Agricultural land losses are driven by urban expansion, real estate speculation, and low profitability.
A new generative AI framework predicts future urban layouts considering multiple factors. The Memory-aware Multi-Conditional generation Network (MMCN) offers a novel approach to modeling complex urban evolution, providing a powerful tool for sustainable urban development.
Researchers examined how autonomous vehicles affect morning commutes and parking in business districts, finding that AVs could increase vehicle hours and miles traveled. Urban planners can adapt policies to accommodate AVs by adjusting parking fees or infrastructure, reducing total system cost by up to 28.5 percent.
The study found a significant reduction in NO2 levels, but limited effect on PM10 and PM2.5 particles within the LEZ. The results indicate that the zone contributes to improving air quality, highlighting the need for additional measures.
A team from Ohio State University has digitally reconstructed three historically Black communities that were fragmented or demolished for freeway construction. The project, known as Ghost Neighborhoods of Columbus, aims to show how urban renewal decisions of the past have a positive impact on future development.
A new perspective in Nature Water highlights how urban flooding measures often exacerbate environmental injustices for society's most vulnerable groups. The study identifies two main reasons for this unequal distribution of risk: higher exposure to climate hazards and limited resources, leading to a lower capacity to bounce back.
A study in Barcelona found that pedestrianisation reduces noise levels by 3.1 dB, exceeding WHO guidelines, but finds no impact from pedestrian activity, which takes over acoustical space previously dominated by motorised traffic.
Researchers found that concrete slab size is the worst offender in terms of carbon emissions, with changing this feature alone able to save large amounts of emissions. Optimize design decisions such as floor thickness, building materials, and construction culture to reduce pollution.
A new study by SMART has identified a strong statistical association between global air connectivity and patterns of multinational corporations' investments. The research found that few layovers meant more subsidiaries, with cities having better flight connections to influential hubs outperforming those with less-connected destinations.
A new study reveals disparities in urban shade levels, leading to greater health risks and exacerbating the 'heat island' effect in cities. Wealthier neighborhoods tend to have more trees, resulting in better shade provision for pedestrians, highlighting a consistent link between wealth and neighborhood tree abundance.