The Mobility 21 Executive Director, Marnie O’Brien Primmer, and the Communications Manager, Kristin Slocum, handle Mobility 21’s day-to-day operations. Primmer was appointed in July 2008 to head the then-five-county transportation coalition focused on developing transportation solutions for Los Angeles, Orange, Riverside, San Bernardino and Ventura counties. In the spring of 2010, Mobility 21 hired Kristin Slocum to head the coalition’s communications and also expanded its reach to include Imperial and San Diego Counties.
Marnie O’Brien Primmer
Executive Director
Primmer brings with her more than a decade of experience in public affairs and transportation infrastructure planning and development. Previously serving as the Director of Marketing and Business Development for CALTROP Corporation, a leading construction management firm, Primmer brings extensive business development, public affairs and community outreach experience to Mobility 21. Prior to joining CALTROP, Primmer served in the External Affairs Department at the Orange County Transportation Authority (OCTA), where she played a key role building public awareness for capital projects, including the Centerline light rail transit line, and served as a liaison to key agency stakeholders, elected officials and business leaders.
Primmer currently serves as the Immediate Past President of the Orange County Chapter of the Women’s Transportation Seminar (WTS) and as a member of the WTS International Finance Committee. She has held several board and committee positions at other regional WTS chapters and through the international organization for more than eight years. Primmer also served as a Trustee on the California Engineering Education Council and has served on committees for OCMoves, Construction Management Association of America and other professional and philanthropic organizations.
Kristin Slocum
Communications Manager
Before joining Mobility 21, Slocum worked as an Associate Community Relations Specialist at OCTA. Her work in social media, graphic design and communications planning helped to deliver cost-effective results for OCTA’s transportation projects and programs. Slocum and the OCTA Public Communications team were pioneers in utilizing social media to improve citizen engagement. She produced an innovative news video for YouTube called “Transportation in 2” and communicated on Facebook and Twitter. In spring of 2010, OCTA’s “public e-volvement” effort won the top communications award for best social media program in the Golden State by the California Association of Public Information Officials and was also recognized with a PROTOS award by the Public Relations Society of America.
Mobility 21 staff works closely with the staff of our partner organizations to address issues from a policy standpoint before bringing these to the Board of Directors for a decision. When Mobility 21 takes a position on an issue, full consensus has been reached by the partnering organizations, representing 21 million residents in Southern California.
