Harriet Tregoning
Director, NUMO Alliance, WRI Ross Center For Sustainable Cities 
Washington, D.C.


Harriet Tregoning is the director of NUMO, the New Urban Mobility alliance, a collaborative effort aimed at harnessing tech-based disruptions in urban transportation to make cities more sustainable, affordable, livable, healthy and just.

Harriet has served as an advisor to cities, states, foundations, companies and others. She was appointed by President Obama to be Principal Deputy Assistant Secretary of the Office of Community Planning and Development at the U.S Department of Housing and Urban Development.  She initiated the first ever $1 billion National Disaster Resilience Competition. Her work at HUD included helping states, regions, cities, counties and towns across the U.S. build strong foundations for economic and disaster resilience.  She was the Director of the District of Columbia Office of Planning for the last two Mayors, where she worked to make DC a walkable, bikeable, eminently livable, globally competitive and thriving city. She is the former Secretary of Planning in Maryland.  She is a leadership advisor to Rails to Trails Conservancy.