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Archive for: Adam Millard-Ball

Global Study Reveals Best Cities for Walking and Cycling

November 19, 2025/0 Comments/in Luskin in the News, Urban Planning Adam Millard-Ball /by Peaches Chung

A new global study analyzed walking and cycling patterns in 11,587 cities across 121 countries, revealing that some cities consistently outperform others for active transportation. Dense cities with extensive bike lanes, such as Wageningen in the Netherlands and Copenhagen in Denmark, top the list, while terrain and climate have less impact than previously assumed.

The research also highlights the influence of policy and pricing: higher gas prices and investments in nonmotorized infrastructure significantly increase walking and cycling rates. Cities like Osaka, Japan, and Nairobi, Kenya, showcase how thoughtful urban design can balance pedestrians, cyclists, and vehicles.

Lead author and Luskin professor of urban planning Adam Millard-Ball emphasizes that infrastructure drives behavior: “It’s not that Dutch people are genetically predisposed to cycling; it’s that most Dutch cities have really good infrastructure for cycling. If it were quicker and safe to walk or bike to their kids’ school or to the store or to work, then Americans would do that just as much as anyone else.”

‘Active travel’ study identifies pathways for designing walking- and cycling-friendly cities

June 11, 2025/0 Comments/in Luskin's Latest Blog Adam Millard-Ball /by Stan Paul

A new study published in the Proceedings of the National Academy of Sciences reveals the transformative potential of walking- and cycling-friendly policies in cities around the world. Conducted by researchers from UCLA and Google, the study analyzed travel data from more than 11,500 cities across 121 countries, making it the most comprehensive global assessment to date of active transportation, or the potential for walking or biking.

The findings show that increasing density and redesigning streets to make active travel safer and more comfortable are the strongest predictors of high walking and biking rates. If every city expanded its bike lane network and redesigned streets to match Copenhagen, Denmark, global walking and biking rates would increase by 412 billion miles, or 663 billion kilometers, per year — leading to an estimated 6% reduction in global carbon emissions and $435 million in health benefits. These policies to promote walking and biking can also reduce road traffic deaths, air pollution and road user stress.

Adam Millard-Ball, lead author and director of the UCLA Institute of Transportation Studies, highlighted how local planning decisions shape how people travel. “The way that cities design their streets fundamentally shapes how people get around, especially for short trips. Are there sidewalks? Bike lanes? How wide are the traffic lanes?” Millard-Ball said. “In this study, we show that these seemingly local planning choices, made in thousands of cities around the world, can collectively drive major shifts in global climate outcomes.” 

Read the full UCLA Newsroom story.

Millard-Ball on Street Design and L.A. Wildfires

June 3, 2025/0 Comments/in Luskin in the News Adam Millard-Ball /by Stan Paul

Adam Millard-Ball, professor of urban planning and director of the UCLA Institute of Transportation Studies, was a guest on a Next City podcast about street gridlock during the Palisades fire, which forced evacuating residents to abandon their vehicles. The program cited research by Millard-Ball and colleagues, discussed in a previous article, where they found that the United States has some of the least connected streets in the world. Ball noted that while Los Angeles is an exception, with a generally well-connected grid system, Pacific Palisades is not. For planners like Millard-Ball, rebuilding in the fire ravaged areas is an opportunity to rethink how L.A.’s streets are designed and work. “If all the traffic that’s coming out has to flow through one or two intersections, that’s a recipe for chaos in an emergency situation,” he said. “This is not what the streets were built for.”

Read the story

Former U.S. Department of Transportation Assistant Secretary for Research and Technology Delivers Luskin Lecture Robert Hampshire shares lessons learned leading research and technology agenda for the nation’s transportation systems. 

May 30, 2025/0 Comments/in Digital Technologies, Electric Vehicles and Alternative Fuels, Environment, For Students, Luskin's Latest Blog, Politics, Public Policy, School of Public Affairs, Transportation, Urban Planning Adam Millard-Ball /by Stan Paul

By Stan Paul

For Robert Hampshire, former Assistant Secretary for Research and Technology at the United States Department of Transportation (USDOT), leading innovation at the federal level involves cooperation and building trust among multiple industries and stakeholders.

Hampshire, who also served as the department’s Chief Science Officer — the first person to fill that role in more than four decades — came to UCLA this spring to discuss the importance of a mission-focused approach to challenges in transportation safety and serving all travelers on the nation’s roads and in the air.

Adam Millard-Ball, professor of urban planning and director of ITS,  introduced the keynote speaker for the April 28 Luskin Lecture co-hosted by the UCLA Institute of Transportation Studies (ITS) as part of the Martin Wachs Distinguished Lecture Series.

Hampshire also talked about supply chain resilience and the future of un-crewed aerial systems (UAS) and shared his first-hand experiences and lessons learned during his four-year public service post. At USDOT, he led the federal agency’s research and technology agenda, including its $2 billion research and technology portfolio, across all modes of U.S. transportation while leading more than 1,000 public officials and public servants.

Since completing his service in 2025, Hampshire has settled back into his role as associate professor of public policy at the University of Michigan. But, he told the audience, “I’ve have had a little bit of time to rethink and formulate some thoughts about particularly now what it means to serve and the complexity of our times, challenges that we see to democracy, the polarization. But, all this in the context of so much technological change.”

As an academic, Hampshire describes his research as a blend of public policy, operations research, data science, and systems approaches to analyze novel transportation systems. These include smart parking, connected vehicles, autonomous vehicles, ride-hailing, bike sharing, car sharing, as well as pedestrian and bicyclist safety. At the same time, he focuses on environmental impacts, equity, and access to opportunities.

Hampshire said an additional aim of his talk was to provide examples to researchers and students how to be more impactful, particularly as researchers.

“I really believe that as researchers, technologists, within the transportation sector, we need to work diligently to increase with our social capital. That’s our networks, not just who you know,” he said, emphasizing the importance of building trust, especially with different communities and building reciprocity and shared values, “…reaffirming things like ‘safety is why we’re here’…and particularly how we need to be more embedded into the transportation ecosystem, and also the non-transportation ecosystem — our friends in health, our friends in education and others.”

He recalled a number of experiences where research and technology played, and continues to play, an important public role. One example that made an important national impact was the implementation of 5G cellular which came into conflict with safety concerns for U.S. aviation while he was with USDOT. In late 2021, the FAA was preparing to ground every single airplane across the nation, just days before Christmas. But, Hampshire said, months before he was tasked with leading the technical response side of negotiations that involved the FAA, the White House and industry.

Hampshire said what was missing at that moment was social capital to get things done. But, ultimately a deal was negotiated where the telecom industry delayed deployment of 5G so they could work more closely with the aviation industry to roll it out nationwide in an orderly manner with no incident, Hampshire said.

“These are all little stories that you don’t hear, but there’s heroic efforts behind it. And I think that level of social capital and working relationships that were built during this time, are certainly going to serve the nation,” he said.

Ann E. Carlson, Faculty Director, Emmett Institute on Climate Change & the Environment at UCLA School of Law, later joined the lecture serving as moderator for further discussion on issues including drastic changes and budget cuts occurring at the federal level and their impact on federal employees and transportation. Hampshire and Carlson, who also served in the Biden-Harris administration as acting administrator of the National Highway Traffic Safety Administration (NHTSA), discussed the future of automated vehicles, high-speed rail in California and also shared anecdotes about working with former Secretary of Transportation Pete Buttigieg.

Hampshire praised the leadership of Buttigieg and the many federal employees he worked with during his first stint in public service saying, “I’ll forever be grateful for what they taught me about public service and certainly, for the students and others, there’s true honor in public service. It’s something that’s worthwhile, and I’d do it again.”

Watch the full video of the event. View photos.

The UCLA Luskin Lecture Series enhances public discourse on topics relevant to the betterment of society. The Series features renowned public intellectuals, bringing together scholars as well as national and local leaders to address society’s most pressing problems. Lectures encourage interactive, lively discourse across traditional divides between the worlds of research, policy and practice. The Series demonstrates UCLA Luskin’s commitment to encouraging innovative breakthroughs and creative solutions to formidable public policy challenges.

The UCLA Institute of Transportation’s Wachs Lecture Series draws innovative thinkers to the University of California to address today’s most pressing issues in transportation. Created by students to honor the late Professor Martin Wachs upon his retirement from the University, the lecture rotates between Berkeley and UCLA, the campuses at which Marty taught. He passed away April 12, 2021.

UCLA ITS Funds Research on Vulnerable Communities, L.A. Fire Response Five projects will explore transportation challenges and community engagement in disaster recovery

February 6, 2025/0 Comments/in For Faculty, For Policymakers, For Students, For Undergraduates, Public Policy, Public Policy News, School of Public Affairs, Social Welfare, Social Welfare News, Urban Planning Adam Millard-Ball /by Mary Braswell

California has long battled wildfires, but the scale and impact of recent fires have pushed emergency response systems to their limits. The fires that broke out in Los Angeles County in January presented new challenges as flames reached deeper into urban areas.

As recovery efforts begin, the fires have highlighted critical gaps in our region’s emergency response and transportation systems, especially for vulnerable communities. To assess and understand these challenges, the UCLA Institute of Transportation Studies is funding five rapid-response research projects, with results expected within one to three months:

  • Understanding mobility challenges for vulnerable communities with limited vehicle access — Tierra Bills, UCLA assistant professor of public policy and civil and environmental engineering
  • Improving evacuation plans for transit riders — Madeline Brozen, deputy director of the UCLA Lewis Center for Regional Policy Studies
  • Bridging gaps in evacuation and resilience strategies for older adults with disabilities — Yeonsu Song, UCLA assistant professor of nursing and medicine
  • Exploring community-driven approaches to infrastructure rebuilding — Megan Mullin, faculty director of the UCLA Luskin Center for Innovation
  • Strengthening street network resilience after disasters — John Gahbauer, UCLA ITS research consultant

The studies aim to support policymakers, transit agencies, emergency planners and local communities in shaping a more equitable and resilient approach to disaster response in the Los Angeles region.

UCLA ITS Director Adam Millard-Ball noted that the wildfire threat in Los Angeles is not going away. “We’re supporting research that can help us to be prepared for a future emergency, and to plan for rebuilding in an equitable, resilient manner,” Millard-Ball said.

Read full descriptions of the projects on the UCLA Institute of Transportation Studies site

View more fire-related research from the Luskin School


 

Millard-Ball on Fire, Sprawl and Car Dependency

January 21, 2025/0 Comments/in Luskin in the News Adam Millard-Ball /by Stan Paul

Research by UCLA Luskin’s Adam Millard-Ball, professor of urban planning and director of the UCLA Institute of Transportation Studies, is cited in Next City, Bloomberg and Streetsblog articles on traffic gridlock that occurred amid the devastating fires in Los Angeles. During the fire, motorists evacuating their neighborhoods were forced to abandon their cars, which had to be pushed aside by bulldozers. Millard-Ball’s paper on street-network sprawl, released on Jan. 13, notes that neighborhoods where residents struggled to flee have some of the county’s least connected streets with limited access in or out. Millard-Ball and his colleagues mapped street connectivity, not just in L.A. but worldwide. “We found that the U.S. actually has some of the least connected streets in the world,” they noted. While L.A. does have a generally well-connected grid system, the researchers found exceptions including Pacific Palisades. They added that building the streets back exactly as before would be a lost opportunity to improve disaster preparedness.

Read the Next City story
Read the Bloomberg story
Read the Streetsblog story

 

Millard-Ball on Realities of Autonomous Taxis

October 24, 2024/0 Comments/in Luskin in the News Adam Millard-Ball /by Stan Paul

Visions of an autonomous car future may come with a few bumps. UCLA Luskin’s Adam Millard-Ball, professor of urban planning and director of the UCLA Institute of Transportation Studies, commented in a Wired story on how a so-called robotaxi revolution could play out as self-driving vehicles are hitting the road. Promoters of a driverless future like Tesla’s Elon Musk see a promising outlook for autonomous taxis, including car sharing systems that allow self-driving-car owners to rent out their vehicles while not in use by the owner, potentially alleviating parking problems. Not exactly, say some experts like Millard-Ball, citing studies of Uber and Lyft’s effects on U.S. cities that show the introduction of these services have actually created more urban traffic. “That’s going backward for the environment and for other urban goals — whether it’s being physically active or socially inclusive,” Millard-Ball said.

Read/listen to story

 

Leadership Transition at UCLA Institute of Transportation Studies After more than two decades guiding research center's growth, Brian Taylor hands reins to Adam Millard-Ball

July 2, 2024/0 Comments/in For Faculty, For Policymakers, For Students, For Undergraduates, Public Policy, Public Policy News, School of Public Affairs, Urban Planning Adam Millard-Ball, Brian D. Taylor /by Mary Braswell

After 23 years at the helm, Brian D. Taylor has stepped down as director of the UCLA Institute of Transportation Studies, effective July 1. His successor is Adam Millard-Ball, professor of urban planning at UCLA Luskin.

Taylor has led UCLA ITS since 2001, playing a critical role in its expansion. Under his tenure, the institute has transformed from a small operation with limited staff and resources into a nationally influential research center with more than 75 scholars and staff conducting cutting-edge research in eight program areas. It has also established partnerships in several consortia, most recently being named the lead in a five-year, $7.5 million federally funded Center of Excellence on New Mobility and Automated Vehicles.

“I am honored to have collaborated with so many talented and motivated students, staff and faculty in building the UCLA Institute of Transportation Studies into the productive and influential transportation research center it is today,” Taylor said. “And I am confident that the institute will continue to effectively tackle our most pressing environmental, equity and technological transportation challenges in the years ahead.”

In recent years, UCLA ITS has

  • Joined the ITS branches at Berkeley, Davis and Irvine in 2016 to form a four-campus University of California Institute of Transportation Studies consortium;
  • Significantly expanded its California-focused transportation policy research in 2017 due to substantially increased annual state funding through the Road Repair and Accountability Act (SB 1);
  • Supported five graduate transportation degree programs in three UCLA Luskin academic departments that have recently climbed in their most widely recognized national rankings — Civil & Environmental Engineering (#12), Public Policy (#14) and Urban Planning (#1);
  • Supported the recruitment of three transportation engineering faculty since 2020 and the creation of master’s and doctoral degrees in transportation engineering.
  • Directed more than $3 million in funding to support graduate students;
  • Supported more than 20 former transportation students who have moved on to tenured or tenure-track faculty positions at leading universities around the world, including Harvard, UC Berkeley, UC San Diego and University of Virginia;
  • Broadened research focus areas to include access to opportunities, the environment, new mobility, parking, public transit, traffic, transportation & communities, and transportation finance.
Taylor’s Leadership Roles

Taylor worked professionally as a transportation planner/analyst for the Metropolitan Transportation Commission before pursuing a PhD in urban planning under the mentorship of Martin Wachs at UCLA. Taylor’s academic focus on transportation finance and governance made him a natural fit for policy engagement.

He began his academic career as an assistant professor at the University of North Carolina at Chapel Hill. In 1994, Taylor joined the UCLA faculty, one year after Wachs re-established the institute on campus. When Professor Wachs moved to UC Berkeley in 1996, Taylor became the only faculty member on campus dedicated primarily to transportation teaching and research. That same year, he became associate director under Donald Shoup, who had replaced Wachs as UCLA ITS director.

In addition to serving as UCLA ITS director since 2001, Taylor is a professor of urban planning and public policy. He also chaired the Urban Planning department for three years and was the director of the Lewis Center for Regional Policy Studies for seven years. In recent years he has been an associate director of the Pacific Southwest Region 9 University Transportation Center and this year was chair of the council of directors for the four-campus UC ITS.

Building on Two Decades of Momentum

New director Adam Millard-Ball brings a wealth of experience in data science and climate change policy.

Incoming director Millard-Ball brings a wealth of experience in data science and climate change policy. He joined UCLA Luskin in 2021, and served as acting director of UCLA ITS during the 2022-23 academic year. In that time, Millard-Ball oversaw TRACtion: Transformative Research and Collaboration, an initiative that brought together academic researchers and community advocates to identify barriers to a just and sustainable future for Los Angeles.”I’m thrilled to lead UCLA ITS, which Professor Taylor has led and built up with his colleagues for more than two decades,” Millard-Ball said. “I hope to maintain our contributions to research and policy for our local community in Los Angeles, for California and across the U.S., and increasingly internationally as we confront the global challenges of climate change.”

The future for UCLA ITS holds more collaboration with engineering scholars at UCLA, exploration of climate issues in relation to transportation, work on equity and community engagement, and integration of innovative methods in data science.

As for Taylor’s future, he’s not going very far.

“I plan to remain active in transportation scholarship and policy, and look forward to devoting more time to research, teaching and mentoring in the years ahead,” he said.

RV Life as an Affordable Housing Option

June 11, 2024/0 Comments/in Luskin in the News Adam Millard-Ball /by Mary Braswell

Urban Planning Professor Adam Millard-Ball spoke to Florida public media outlet WUFT about the growing number of people who live in RVs by choice or necessity. Housing research into the estimated 1 million Americans who live full-time in RVs has focused more on people pursuing a highly mobile and leisurely “Van Life” than on stationary, low-income residents, the article noted. “Some people like the nomadic existence, but for many people it’s the lesser of two evils,” Millard-Ball said. “It’s better than couch surfing or being in a tent.” Large urban centers can support this option by converting excess space on public roads and in parking lots into areas with access to basic utilities such as water hookups and garbage collection, where residents of campers and RVs can live legally. The average residential street is more than twice as wide as the functional minimum of 16 feet, Millard-Ball’s research shows, and some of that extra space could be used to accommodate housing.

Read the article

 

Millard-Ball Receives Friedrich Wilhelm Bessel Research Award

April 18, 2024/0 Comments/in Luskin's Latest Blog Adam Millard-Ball /by Mary Braswell

Adam Millard-Ball, professor of urban planning at UCLA Luskin, has received the Friedrich Wilhelm Bessel Research Award, which recognizes outstanding accomplishments by scientists and scholars from around the world. Trained as an economist, geographer and urban planner, Millard-Ball conducts research on transportation, the environment and urban data science. Award recipients are invited to collaborate with scholars based in Germany, and Millard-Ball is currently on sabbatical at the Mercator Research Institute on Global Commons and Climate Change in Berlin. Each year, the Friedrich Wilhelm Bessel Research Award, named after the noted German astronomer and mathematician, is given to 10 to 20 internationally renowned academics. The awards are funded by Germany’s Federal Ministry of Education and Research and administered by the Alexander von Humboldt Foundation, which promotes scientific advances, academic exchanges and cultural dialogue across borders. Award recipients were honored at a symposium in Bamberg, Germany, in March.


 

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