Grant Funds Research Into Heat-Resilient Streetscapes

/0 Comments/in /by

When it comes to beating the Southern California heat, small-scale interventions can have a big impact. If you’ve ever waited for the bus on a hot summer day, you’ve felt how a shady tree or a covered bus shelter can help keep you cool. Despite these tangible benefits, few studies have focused on micro-scale, or street-level, interventions to reduce heat for pedestrians and transit riders. A new grant from the California Strategic Growth Council will fund a UCLA Luskin Center for Innovation analysis of these micro-scale cooling strategies to mitigate heat at bus stops and other streetscapes. V. Kelly Turner, assistant professor of urban planning and associate director of the Center for Innovation, will lead the project, which aims to empower communities, particularly disadvantaged and heat-vulnerable communities, to cost-effectively design cooling solutions for pedestrians and transit riders. This focus on active transportation can help reduce greenhouse gas emissions and local pollution while creating climate-resilient neighborhoods. Community-engaged research will center on four historically disadvantaged areas that are vulnerable to extreme heat — Pacoima, Watts/South Los Angeles, Ontario/Inland Valley and Oasis/Coachella Valley. These communities represent a range of climate zones and built environment forms in Southern California. The project, part of the Center for Innovation’s large body of climate adaptation and resiliency research, will also leverage ongoing partnerships among UCLA, Kounkuey Design Initiative and the state’s Transformative Climate Communities program. — Michelle Einstein

 

Turner Measures Effects of Heat With Robot ‘MaRTy’

/0 Comments/in /by

Fox 10 News in Phoenix spoke to Assistant Professor of Urban Planning V. Kelly Turner about research measuring how a person experiences heat. The interview, conducted during a triple-digit heat wave in Arizona, focused on a mobile weather station known as MaRTy, invented by Turner’s research partner, Arizona State University Assistant Professor Ariane Middel. The robot collects climatological data to determine “mean radiant temperature,” which “gives us a sense of how pedestrians experience heat, not just how the ground feels to the touch,” Turner explained. The research adds to the body of knowledge surrounding the urban heat island effect, which makes high temperatures in cities even more unbearable. Turner and Middel have been walking MaRTy around urban areas in Phoenix, Tempe and Los Angeles to help city leaders determine which areas would benefit most from increasing shade and planting trees.

Watch the video

Cities Need Array of Climate Change Strategies, Turner Says

/0 Comments/in /by

Assistant Professor of Urban Planning V. Kelly Turner was featured in an Arizona Republic article about her research on combating climate change and lowering urban temperatures. Turner partnered with climate scientist Ariane Middel to research the effect of surface-cooling solar reflective paint on how a person walking along the street feels the heat. “The broad lesson has to do with the fact that we need to be sensitive to context when we make decisions,” Turner said. “If the end goal is urban heat island mitigation, then we want to do something different than if our end goal is pedestrian comfort. They’re not the same thing, and they can’t be conflated.” Research like Middel’s and Turner’s is essential for cities developing heat mitigation techniques and investing in new infrastructure. It’s important to develop strategies using a combination of tools that address the specific needs of different city blocks and neighborhoods, rather than a one-size-fits-all approach, they said.

Read the article

On-the-Ground Guidance for L.A.’s Far-Reaching Climate Strategy University researchers and a robot named MaRTy complete first on-site test of city’s Cool Streets program

/0 Comments/in , , , , , , /by

By Mary Braswell

Los Angeles’ ambitious plan to cool the city as the planet grows warmer is getting a boost from two university professors and a street-smart robot named MaRTy.

The researchers, from UCLA and Arizona State University, have completed the first on-site evaluation of the city’s Cool Streets program, one of several sustainability strategies outlined in Los Angeles’ 2019 Green New Deal.

By covering several blocks of road with a solar-reflective coating engineered to reduce surface temperatures, the city’s pilot program aims to test the cooling effects on an entire neighborhood. The researchers broadened the body of knowledge by collecting a sophisticated suite of measurements that simulate the experience of a pedestrian walking on the surface.

“Once you take things down to the street level, arguably you have to start thinking about the thermal load on people,” said V. Kelly Turner of the UCLA Luskin School of Public Affairs, who collaborated with Ariane Middel of ASU’s School of Arts, Media and Engineering.

The reflective coating aims to prevent asphalt from retaining heat, which contributes to the “urban heat island effect” that keeps cities from cooling down, even in the evening. But the study by Turner and Middel, newly published in the journal Environmental Research Letters, reveals an unintended, ground-level effect: The paint’s highly reflective properties can actually elevate pedestrians’ exposure to heat.

Imagine a scene that has become increasingly common as Angelenos shelter in place: families taking neighborhood walks, often with a dog in tow. On a coated road, the dog might appreciate the cooler surface beneath its paws. But the dog walkers might feel an uptick in heat reflected off the ground.

City workers apply a cooling paint on roads in Pacoima

City workers apply a cooling paint on roads in Pacoima, part of Los Angeles’ strategy to combat climate change. Photo courtesy of Los Angeles Bureau of Street Services

“From an urban planning perspective, this idea of cool pavements is really innovative. Cool streets may be great for mitigating the urban heat island, if that’s the goal,” said Turner, who noted that the widespread use of the reflective paint on roofs, roads and other surfaces can reduce the amount of heat absorbed in the built environment.

However, she added, “If the goal is framed in terms of a public health benefit, we need to know a bit more, since the reflected radiation increases the heat load on a pedestrian walking over the surface.”

Turner and Middel hope their initial findings will open the door to further research that will help the public and private sectors fine-tune their green initiatives. In addition to gathering more information about cooling paint’s impact on human comfort and health, future studies could answer questions about cost-effectiveness, maintenance needs and the tradeoff between daytime glare and nighttime visibility, they said.

Putting MaRTy into action

To collect their cool pavement data, Turner and Middel took MaRTy for a spin on the streets of two Los Angeles neighborhoods chosen for the pilot project.

The robot is “essentially a garden cart that has a lot of meteorological sensors attached to it,” said Middel, who created the tool at ASU’s SHaDE Lab to calculate “mean radiant temperature” — the data set that gives MaRTy his name.

In addition to measuring surface and air temperature, wind speed and humidity, the robot collects information on long- and short-wave radiation to determine mean radiant temperature, which is a reliable predictor of thermal comfort for humans. MaRTy is also nimble enough to trundle along sidewalks, ravines or other locations where a pedestrian might wander, setting him apart from measurement tools mounted on street vehicles.

On a day in July 2019 when air temperatures hit the high 80s, the research team walked the blocks of the two neighborhoods, in Pacoima and Sun Valley, from 11 a.m. to 9 p.m. They found that the coated roadways were cooler to the touch, by as much as 11 degrees Fahrenheit, compared with nearby untreated asphalt — meaning the paint successfully lowered surface temperature, as it was designed to.

However, Turner and Middel also discovered that mean radiant temperatures at midday were more than 7 degrees Fahrenheit warmer in a five-foot–high area above the cool surfaces, compared with asphalt. In the midafternoon, that number fell to about 3 degrees.

While Los Angeles’ Cool Streets program targets roads designed for cars rather than people, the study provides useful data for agencies considering the cooling paint for playgrounds or other pedestrian areas.

Turner and Middel say the findings will also inform their separate, ongoing study supporting California’s Transformative Climate Communities program, which invests in climate action at the local level. Both of the researchers’ projects were underwritten by the UCLA Luskin Center for Innovation, where Turner is associate director of urban environment research.

Greg Spotts, chief sustainability officer for Los Angeles’ Bureau of Street Services, said he welcomes the on-the-ground findings produced by Turner, Middel and MaRTy and called for further study.

“By being the first municipality in California, and possibly the country, to deploy a cool pavement coating on a public street, we now have physical sites where researchers can do some of their work. Before, most of the research was based on computer modeling,” he said.

Spotts, who earned his master’s in public policy at UCLA Luskin in 2008, spearheaded the cool pavement project as one part of a multipronged strategy to combat climate change at the neighborhood level. To date, the Bureau of Street Services has planted trees, built shade structures and installed hydration stations, among other interventions.

Future research could explore how cool pavement works in combination with these complementary measures to reduce the overall heat island effect on a community scale while also increasing pedestrian thermal comfort at the street level.

Turner and Middel concurred that climate change must be tackled from multiple directions.

“There is not just one solution that’s going to solve all our problems,” Middel said. “We have to look at the benefits and tradeoffs of all the solutions we’re considering to come up with the best way to cool our cities.”

Turner Explores Environmental Benefits of New Urbanism

/0 Comments/in /by

A CNU Journal article cited Assistant Professor of Urban Planning V. Kelly Turner, one of several scholars who contributed their expertise to the publication of A Research Agenda for New Urbanism. The book highlights research needs from the social, environmental and economic sides of New Urbanism, including transportation, diversity, accessibility and theoretical foundations. Turner highlighted the impact of urbanism on microclimate as a critical area of climate research and stressed the need for “studies that evaluate the role of design in adapting to hotter urban environments.” Some environmental benefits of New Urbanism, including transit-oriented design and reduction of carbon dioxide emissions, have been well-established. However, Turner pointed out the “lack of empirical assessment of the relationship between new urbanist design and ecosystem services, climate adaptation planning and other environmental outcomes.” She recommended establishing field tests at new urban projects in the U.S. and abroad to gather valuable environmental data.

Read the article

Turner on Effects of ‘Cool Pavement’

/0 Comments/in /by

KNX 1070 spoke with V. Kelly Turner, assistant professor of urban planning, about Los Angeles’ “cool pavement” project, part of an initiative to test strategies to adapt to climate change. The city has been pouring reflective coating on dozens of roads, and Turner is among the researchers measuring the effects. “Cool pavement is working. It greatly reduces surfaces temperatures,” she found. But she noted that the energy reflected from the cooler surfaces are radiated out and can be absorbed by the human body. As a result, pedestrians walking on “cool pavement” surfaces during the middle of the day may feel warmer, Turner found.

 

Street Art Meets Climate Science in the Big, Blue Face of Zeus Massive mural in South L.A. is painted with a surface-cooling coating to start a conversation about our warming world

/0 Comments/in , , , , , , /by

By Mary Braswell

The gigantic mural at the corner of Avalon and 62nd in South L.A. is super cool. The face of the Greek god Zeus painted in electric blues against a black background looks down as people walk by on the sidewalk and cars pass on the street. At 72 feet wide and 27 feet high, the street art makes a big, bold statement in a neighborhood of warehouses and loading docks.

It also literally cools down the brick wall it’s painted on.

Created with a solar reflective coating that reduces surface temperatures up to 30 percent, the so-called eco-mural aims to tap into the popularity of street art to start a conversation about climate change, said V. Kelly Turner, assistant professor of urban planning at the UCLA Luskin School of Public Affairs.

Project leaders V. Kelly Turner, left, and Lizy Dastin. View more photos from the “cool art” mural project on Flickr.

Turner conducts research on urban design and the environment, including the effectiveness of cooling surface paint to combat the “urban heat island effect” that drives up temperatures in cities. She does extensive work with the city of Los Angeles, which is testing the reflective coating on streets in every council district.

“L.A. has the first-of-its-kind cool pavement project. And we’re also a vanguard for supporting the street arts,” Turner said. “But no one’s ever done a street art intervention or mural using cool paint.”

To make that vision a reality, Turner reached out to street art advocate Lizy Dastin, who teaches art history at Santa Monica College. Dastin recruited muralist Eric Skotnes from the activist art collective Indecline, whose work blending graffiti art and classical figures has been commissioned on spaces across the United States and as far away as Israel and Peru.

By the time the mural Turner envisioned was unveiled — on an October day when temperatures in Los Angeles hit 95 degrees — the list of collaborators included artists, urban planners, climate scholars, community activists and entrepreneurs. But as Skotnes put the finishing touches on the towering face of Zeus, the excitement was tempered by the gravity of the underlying issue.

Turner cited research showing that extreme heat leads to more deaths than all other weather-related hazards combined. The danger is especially acute in cities, where buildings, roads and parking lots trap heat during the day and hold on to it into the evening, making afternoons and nighttime temperatures unnaturally hot.

In Southern California, cities often run 9 degrees Fahrenheit hotter than the undeveloped regions that surround them. By 2021, as climate change intensifies, Los Angeles could experience an additional 60 to 90 days of temperatures above 95 degrees every year, UCLA research shows.

Facing that grim prospect, Los Angeles Mayor Eric Garcetti has commissioned several urban design interventions — including planting trees and applying cool paint to roofs and streets — to fulfill his pledge of lowering citywide temperatures by 3 degrees Fahrenheit by 2035.

Muralist Eric Skotnes of the art collective Indecline puts finishing touches on the face of Zeus. Photo by Mary Braswell

To help the city gauge the effectiveness of the cool pavement strategy, Turner travels across the region to collect field data on the reflective paint. She has attached 100 tiny sensors to key fobs and placed them in trees in Ontario, Watts and Fresno. Along with collaborator Ariane Middel of Arizona State University, she has accompanied a temperature-sensing robot named MaRTy as it trundled down the sidewalks of Pacoima and Ontario to measure how the average pedestrian would feel the heat.

While other studies have focused on surface temperatures, the research by Turner and Middel is the first to determine the cool pavement sites’ “mean radiant temperature,” a more accurate predictor of thermal comfort for humans. The suite of measurements includes surface and air temperature, long- and short-wave radiation, wind speed and humidity.

The two researchers found that cool pavement surface temperature is lower than untreated asphalt at all hours, but mean radiant temperature can be almost 7 degrees Fahrenheit higher in the afternoon. Turner noted, “Cool pavement is not a panacea but one tool of many in making climate-adapted cities that are less hot.”

It’s all part of what she calls a “fantastic urban experiment.”

“Anytime a city does something like this — green interventions, let’s call them — as scholars, it’s incumbent on us to evaluate them using the tools of science,” she said. “We are really doing what’s called ‘adaptive management’— do, learn from doing and adjust.”

Turner is a social scientist who identifies urban design problems and builds teams to develop answers. That skill was clearly evident in the network she built to make the South L.A. mural a reality.

The idea for the project came in the middle of the night, she recalled. She immediately sent predawn emails to Dastin, a friend from their days at Wellesley College and founder of the street art advocacy venture Art and Seeking, as well as research partner Middel, who conducts climate studies as director of the SHADE Lab at Arizona State.

Armed with a thermal camera, Middel captured the heat signature of the finished mural, swirls of yellow, orange and purple that showed the effects of the cooling paint.

“That’s the most exciting part. The art exists in the visual spectrum and the infrared,” Turner said. “It’s interesting from an artistic perspective because it’s a different artistic parameter, a challenge for the artist.”

Muralist Skotnes developed the Zeus concept in tribute to the building owner, Amped Kitchens, whose logo includes a lightning bolt — the god of sky and thunder’s weapon of choice. The building houses a community of Los Angeles food makers who rent state-of-the-art production, packaging and storage facilities. Owners Mott Smith, a UCLA alumnus, and Brian Albert are advocates of sustainable urbanism and eagerly offered their 1920s-era building as a canvas for the mural.

The solar reflective coating was donated by Creative Paving Solutions of Arizona, and the project was underwritten by UCLA’s Luskin Center for Innovation and the nonprofit Mural Conservancy of Los Angeles.

Turner sees the mural as an eye-catching way to raise public awareness about the urgent need to adapt to a warming world. But she says her end goal is to offer practical, data-based solutions for cities like Los Angeles.

“As a human environment geographer,” Turner said, “my passion is trying to think through how to make this research more useful for a city planner who needs to figure out, ‘OK, I’ve got this intersection, how can I make it cooler for people waiting for the bus?’ ”

The “cool art” mural as seen in infrared, left, and to the naked eye. Photos by Ariane Middel

Turner Tracks Effectiveness of ‘Cool Pavement’ Technology

/0 Comments/in , /by

A CityLab story on the city of Los Angeles’ efforts to pursue “cool pavement” technologies to address rising urban temperatures featured the research of V. Kelly Turner, assistant professor of urban planning. While other cool pavement studies have measured surface and air temperature, Turner’s research is the first to focus on “mean radiant temperature,” which is most related to thermal comfort. Turner and Ariane Middel, assistant professor of arts media and engineering at Arizona State University, studied unshaded streets in Pacoima and Sun Valley that had been coated with an asphalt mixture called CoolSeal, which reflects, rather than absorbs, the energy from sunlight. They measured air temperature, wind speed, humidity and radiation from morning to sundown, and their preliminary findings will soon be published by the American Meteorological Society. The project is one part of a greater effort to collect data on the effectiveness of strategies to address so-called urban heat islands.

Read the article

 

‘Cool’ Street Art and Climate Change

/0 Comments/in , , , , /by
Join V. Kelly Turner, assistant professor of urban planning at UCLA Luskin, and Lizy Dastin, art historian and adjunct professor of art history at Santa Monica College, for a public viewing of the first environmental mural of its kind: a large-scale, public art piece made from cooling surface paint to raise awareness about rising temperatures in cities. The mural by artist Eric Skotnes on a 27 x 72 foot brick wall on 1920s-era building in South Los Angeles will make a double visual impact — as an elegant eco-mural that enlivens the community and also as an infrared image documented by thermal camera. This project will raise the visibility of eco-efforts through the popularity of street art, and bring together the resources and expertise of an exciting group of collaborators: artists, urban planners, climate scholars, community activists and entrepreneurs. READ MORE about the project.
WHO: The public and media are invited to view the first eco-friendly, and eco-saving, mural
WHERE: Amped Kitchens, a community food production space. 661 E 62nd St, Los Angeles, CA 90003
WHEN: Wednesday, Oct. 16, 2019, from 10 a.m. – 1 p.m.

Growing to Meet the Challenge of a Changing World UCLA Luskin faculty additions bring new expertise to help keep pace with a rapidly evolving society

/0 Comments/in , , , , , , , , , , , , , /by

By Stan Paul

Retreating coastlines. An information revolution. The ever-evolving ethnic makeup of the United States. These are times of rapid change, presenting new challenges to how and where we live and work.

Meeting the challenges of this new normal and finding solutions to shifting problems and populations, the UCLA Luskin School of Public Affairs has undergone unprecedented growth. In fall 2018, nine new scholars joined Luskin’s faculty in positions that cross disciplinary lines within the School and across the campus. This follows the addition of six other new faculty members since 2016. Four more are being recruited.

This expansion is partly tied to the launch of a new undergraduate major in public affairs, but it’s about more than filling out a schedule of classes. The School has become one of the most diverse and interdisciplinary units in the University of California system, Dean Gary Segura said. The additions were designed to expand “expertise and social impact,” making the school “profoundly well-positioned to engage, educate, study, and contribute to California’s diverse and dynamic population.”

Among the new faculty, six are women and four are Latino.

Some already have strong interests in Los Angeles as well as ties to UCLA and the region, and others will have the opportunity to incorporate Los Angeles into their work.

“I’m extremely excited to be coming home, living on the Eastside and working on the Westside,” said Chris Zepeda-Millán, associate professor of public policy and Chicana/o studies. Zepeda-Millán, a political scientist who grew up in East Los Angeles, studies how mass protest impacts public opinion, policy preferences, identities and political participation. His book, “Latino Mass Mobilization, Immigration, Racialization, and Activism,” received awards this year from the American Political Science Association and the American Sociological Association.

Zepeda-Millán is thrilled to be at UCLA: “It’s truly a dream come true.”

Martin Gilens, professor of public policy, previously taught political science at UCLA. After a long stint at Princeton, he returned to UCLA, where he has multi-generational ties — his parents and grandfather are

Bruins. A native Angeleno, Gilens studies race, class, social inequality and their representational effects in the political system. He teaches courses to graduate and undergraduate students.

“I’m looking forward to the interdisciplinary environment of the Luskin School,” Gilens said. “My Ph.D. is in sociology, and I’ve taught in political science and public policy, so I’m a walking embodiment of interdisciplinarity.”

Natalie Bau adds global perspective and reach. She is an economist studying development and education, with a particular interest in the industrial organization of educational markets. She looks at cultural traditions — such as bride price and dowry practiced in some countries — and their role in determining parents’ human capital investments in their children, and how they evolve in response to the economic environment.

In Zambia, she and research colleagues are tracking the outcomes of 1,600 adolescent girls to evaluate the effects of an experiment that randomly taught negotiation skills.

“My research interests include understanding factors that impact police decision-making and public trust in police,” said Assistant Professor of Public Policy Emily Weisburst, who studies labor economics and public finance, including criminal justice and education. “I am also interested in how interactions with the criminal justice system affect individuals, families and communities.”

Amada Armenta earned her doctorate in sociology in 2011 from UCLA and returns as an assistant professor in UCLA Luskin Urban Planning.

“I am thrilled to be back, to contribute to a university that has played such a formative role in my education,” said the author of the award-winning book, “Protect, Serve and Deport: The Rise of Policing as Immigration Enforcement.” Most recently she has examined how undocumented Mexican immigrants navigate bureaucracies in Philadelphia.

“Put briefly, I study the social impacts of climate change and how cities are adapting,” says Assistant Professor of Urban Planning Liz Koslov. “My research specifically focuses on the adaptation strategy known as ‘managed retreat,’ the process of relocating people, un-building land, and restoring habitat in places exposed to flooding, sea level rise, and other effects of climate change.”

Koslov is working on a book aptly titled, “Retreat,” that follows residents of Staten Island in New York City whose houses were damaged or destroyed by Hurricane Sandy and who subsequently decided to relocate rather than rebuild in place.

Like Koslov, new Urban Planning colleague V. Kelly Turner conducts research with an environmental lens. Her work addresses the relationship among institutions, urban design and the environment through two interrelated questions: How does urban design relate to ecosystem services in cities? And to what extent do social institutions have the capacity to deliver those services?

Turner said her approach draws from social-ecological systems frameworks to address urban planning and design problem domains. She has used this approach to investigate microclimate regulation through New Urbanist design, water and biodiversity management through homeowners associations, and stormwater management through green infrastructure interventions.

Joining UCLA Luskin Social Welfare is Amy Ritterbusch, who has led social justice-oriented participatory action research initiatives with street-connected communities in Colombia for the last decade, and also recently in Uganda. Her work documents human rights violations and forms of violence against the homeless, sex workers, drug users and street-connected children and youth, and subsequent community-driven mobilizations to catalyze social justice outcomes within these communities.

“My current research contemplates the dilemmas within our social movement in terms of how to create protective environments for social justice researchers and activists in the midst of working on and against acts of violence and injustice,” Ritterbusch said.

Assistant Professor of Social Welfare Carlos Santos draws on diverse disciplines, theories and methods to better understand how oppressions such as racism and heterosexism overlap to create unique conditions for individuals.

With a background in developmental psychology, Santos believes that developmental phenomena must be studied across diverse disciplines and perspectives. He draws on the largely interdisciplinary interpretive framework of intersectionality, which is a view “underscoring how systems of oppression overlap to create inequities.”