International Conference 2026

Mitchell is a principal with McAdams. He provides advisory services in urban planning, parks and public space planning. He is an award-winning planner with more than 38 years of experience and is internationally recognized for his leadership and contributions to contemporary planning issues. He is a prolific public speaker and specializes in urban planning, placemaking and implementation strategies. Prior to joining McAdams, Mitchell served as the commissioner for the New York City Department of Parks and Recreation; Chief Planning Officer in Raleigh, NC and served as president of the American Planning Association and the American Institute of Certified Planners. Mitchell is one of the nation’s most celebrated urban thinkers. He was selected to Planetizen’s list of the 100 Most Influential Urbanists in the world. In addition, he has been honored as one of the top 100 City Innovators in the world by UBM Future Cities, and the Urban Times named him one of the top international thought leaders of the built environment.

Jeffrey Tumlin is the Director of Transportation for the San Francisco Municipal Transportation Agency, appointed in December 2019. Responsible for overseeing crucial areas such as the Municipal Railway (Muni), parking, traffic engineering, bicycle and pedestrian safety, transportation accessibility, and taxi regulation for the City & County of San Francisco, Jeffrey is a highly accomplished transportation expert. With more than 20 years of experience leading sustainable transportation projects for cities throughout the United States, his proven expertise is a driving force behind San Francisco's ongoing efforts to create a more efficient, accessible, and sustainable transportation system.

Tilly Chang serves as Executive Director of the San Francisco County Transportation Authority. The Transportation Authority's mission is to make travel safer, healthier, and easier for all. The agency plans, funds, and delivers transportation projects to improve travel choices for residents, commuters, and visitors throughout San Francisco. Ms. Chang oversees the Transportation Authority's administration of San Francisco’s half-cent transportation sales tax and other voter-approved funding programs. She also leads the agency's congestion management functions, including developing the San Francisco Transportation Plan, which is the blueprint for countywide transportation policy and investment. Ms. Chang serves on the advisory boards of UC ITS, UC Berkeley Civil and Environmental Engineering and SF Self Help for the Elderly. Prior to the Transportation Authority, she held posts with the World Bank, Metropolitan Transportation Commission, and a wireless technology startup.

Olatunji Oboi Reed serves as the founding President & CEO of The Equiticity Racial Equity Movement. He works globally as a racial equity tactician, increased mobility advocate, and racial justice activist. Oboi’s passion lies at the intersection of community, culture, and health. With an extensive background in both nonprofit management and corporate social responsibility, he is most proud of his work to create a diverse coalition of people, organizations, and businesses all working together to achieve racial equity and mobility justice across the City of Chicago. Equiticity is a racial equity movement, operationalizing racial equity by harnessing our collective power through research, advocacy, programs, Community Mobility Rituals, and social enterprises, to improve the lives of Black, Brown, and Indigenous people in our society. Equiticity’s vision is a mid- to large-sized U.S. city where racial equity is fully integrated at the policy and legislative levels into every function, department, budget, and resource associated with the city’s operations, services, and programs. In 2015, Oboi was awarded The White House Transportation Champion of Change award by The White House and the United States Department of Transportation, under the administration of President Barack Obama. Oboi serves as Co-Chair of the Transportation Equity Network, Steering Committee Member of PolicyLink’s Transportation Equity Caucus, and Steering Committee Member of the Free To Move Coalition. Oboi is an appointee on the Chicago Metropolitan Agency for Planning’s Regional Economy Committee. He is a member of the 2018 Grist Fixers Cohort, TransitCenter Foundation’s National Transit Justice Network, and the Leadership Conference on Civil and Human Rights’ Justice Reform Task Force. Oboi previously served as a Community Member of the City of Chicago Mayor’s Bicycle Advisory Council and a member of the Board of Directors of Streetsblog Chicago. He is a frequent speaker, panelist, and facilitator at conferences around the world.

Karen Clawson is a Principal Planner and manager of the Air Quality and RideshareKC programs at Mid-America Regional Council (MARC), the Kansas City region’s council of governments and metropolitan planning organization. She received a Master in Urban Planning and Bachelor of Fine Arts in Industrial Design from the University of Kansas. Her career has centered on the integration of environmental and transportation policy, as well as community outreach and engagement with a focus on underserved and vulnerable communities. Prior to her work serving the Air Quality and RideshareKC program, she managed long-range transit planning at MARC and supported project management for the initial planning of the KC Streetcar and managed the development of the Smart Moves Regional Transit and Mobility Plan. Her current work focuses on climate resilience, mobility and jobs access, and improving air quality for all residents in the Kansas City area.

Alex Crowley is Director of Economic & Sustainable Development with the City of Bloomington. His responsibilities are to cultivate a resilient community built on shared prosperity, economic opportunity, environmental stewardship, and a thriving arts and culture ecosystem. Before joining the City, Alex helped to run and launch small businesses in and around Bloomington. His professional background combines advertising and operations management in a variety of fields including telecommunications. He has held leadership positions at Ogilvy & Mather: New York, AT&T and Insight Communications. He serves on various local boards, including the Lake Monroe Water Fund, Downtown Bloomington Inc., the Bloomington Urban Enterprise Association, and the Lake Monroe Sailing Association. Alex is a native of New Haven, Connecticut, a graduate of Fordham College in New York, a composer, and the doting father of a senior Boilermaker, a sophomore LMU Lion, and a high schooler at Bloomington South.

Mr. Nicholas McCreary, M.S., serves as Senior Sustainability Analyst in Climate and Sustainability Services. Before joining KERAMIDA, Mr. McCreary was the Director of Sustainability for Creighton University in Omaha. At Creighton, he was the lead author and architect for the Creighton inaugural sustainability plan, developed a sustainability-focused internal grant fund, and launched a post-consumer composting program. Prior to Creighton, he served as the Sustainability Coordinator for Indiana State University, where he directed a multi-disciplinary committee to create ISU’s Sustainability Plan. Adept at convening stakeholders and soliciting community input, Mr. McCreary helps clients facilitate practical climate action and sustainability planning. At KERAMIDA, Mr. McCreary focuses on advising clients on Climate Action Planning, ESG Strategy, Planning and Reporting, Energy Management, ESG Assurance Services, ESG Audits, and supporting the needs of Boards/Executives on ESG strategy and education issues. Mr. McCreary holds a Master of Science in Sustainability from St. Louis University and a Bachelor of Arts in Earth Sciences from DePauw University. He has two years of post-secondary teaching experience in environmental science and sustainability science. Mr. McCreary participated in COP22 negotiations as a delegate for the NGO Care About Climate in Marrakech, Morocco. Committed to public service, Nick has served on the boards of several sustainability-focused community organizations, including Saving Grace Perishable Food Rescue in Omaha, NE, and ReTHink in Terre Haute, IN.

Aaron Witham is the Director of Sustainability at the University of Southern Maine. He leads the University's carbon neutrality planning efforts and serves as the TDM (Transportation Demand Management) Coordinator. He has been in the field of higher education sustainability for over 12 years, holding posts at Unity College, Green Mountain College, and the University of Vermont. He helped Green Mountain College earn the #2 ranking on Princeton Review's Green Honor roll, as well as the #1ranking among bachelorette institutions on AASHE'S STARS report for sustainability. He also helped the University of Vermont earn a Gold rating from AASHE's STARS. He holds a Master's Degree in Natural Resources and a Graduate Certificate in Ecological Economics from the University of Vermont, where he served as a Transportation Research Scholar in their Transportation Research Center. He strives to change the paradigm of how we view the role of transportation in our society by asking how we can make the transportation system itself function like a healthy ecosystem.

A dedicated public servant, Morgan started her career the environmental non-profit field and now contributes to the common good through her work in local government. She is an advocate for climate justice and works to increase awareness on the interconnectedness of climate change, as it intersects with other important issues of today. Currently Morgan serves as the Director of the Office of Sustainability with the City of Indianapolis. In this role, she oversees the implementation of the City’s first sustainability and resilience action plan, Thrive Indianapolis. Prior to taking on this role, she worked closely with the Office of Sustainability as the Climate Advisor through the American Cities Climate Challenge to guide the direction of the first environmental-focused policy to come out of the Office of Sustainability. Morgan holds a Master of Science in Climate Justice from Glasgow Caledonian University and currently serves on the Greater Indiana Clean Cities Board of Directors.