METRO Magazine Logo
MenuMENU
SearchSEARCH

Mountain Line CEO steps down, takes role with Keolis

Erika Mazza, announced last week she was stepping down as head of the Flagstaff, Ariz.-based transit agency.

February 11, 2020
Mountain Line CEO steps down, takes role with Keolis

Erika Mazza was appointed as the new VP of Keolis Operations for the western region of North America. NAIPTA

2 min to read


Erika Mazza was appointed as the new VP of Keolis Operations for the western region of North America. NAIPTA

Today, Keolis announced the appointment of Erika Mazza as the new VP of Keolis Operations for the western region of North America. Mazza brings over two decades of planning and operational management experience with an emphasis on economic development, urban planning, affordable housing, and transit to this role, where she will be responsible for leading the company’s operations across various modes in western North America.

Prior to joining Keolis, Erika Mazza served as Mountain Line’s CEO/GM, overseeing all aspects of this award-winning transit agency in Flagstaff, Ariz. She led and directed all business activities to ensure the organization provided safe, on-time service and oversaw 125 employees and a total transit budget of $43M. She previously served as Mountain Line’s deputy GM. A few of her successes during her tenure include: facilitating nearly 100 percent ridership growth, reducing accident frequency to 0.003 percent per mile, and lowering employee turnover from 15 percent to 2.5 percent, in addition to a current zero percent vacancy in open positions.

Erika Mazza has been with Mountain Line for more than eight years and has served in the CEO/GM role since October 2018.

The NAIPTA Board of Directors is working on a succession plan and will pursue naming an Interim CEO/GM while working to recruit a permanent candidate for the position.

Mazza also serves on the APTA Board of Directors and the Transit Cooperative Research Program’s Oversight and Project Selection Committee. She is a graduate of the American Public Transportation Association’s Leadership Program and serves as Vice-Chair for the Legislative Committee.

Ad Loading...

Erika is active in her local community, where she serves on the Northern Arizona Leadership Alliance and the Downtown Business Alliance Board of Directors. Prior to joining Mountain Line in 2011, Mazza was the Human Services Planning Director in Boulder, Colo., where she led efforts to enhance mobility opportunities for low-income households.

“I am thrilled to be joining an organization with such an impressive global track record and forward-thinking aspirations,” said Mazza. “I look forward to working with our partners, cities, community organizations, and agencies to help evolve their business models, develop new modes of transportation, and most importantly, respond to their riders’ – and non-riders’ – demands and expectations.”

This role will report directly to Aline Frantzen, CEO of U.S. Bus Operations, and will include oversight of all facets of Keolis’ operations in western North America, including safety, operational excellence and customer satisfaction, economic performance, staffing and managerial leadership, corporate social responsibility and partnerships.



More Management

Railby StaffFebruary 2, 2026

Chicago Region Transit Ridership Grows in 2025

The region’s fixed-route system finished out the year with a total of 373.5 million rides. Adding 12.3 million rides over 2024 represents an increase that is equal to the annual transit ridership of Kansas City.

Read More →
New Mobilityby StaffJanuary 30, 2026

Chicago's Pace Expands VanGo Mobility Program

The service is a flexible, reservation-based transit service designed to close the first- and last-mile gaps and connect riders to employment for just $5 per day.

Read More →
A blue and white graphic with text reading "Foothill Gold Line: Design Contract Award & 2026 Board Leadership."
Managementby StaffJanuary 30, 2026

Foothill Gold Line Board Awards Claremont Extension Design Contract to Parsons, Maintains Board Leadership for 2026

Parsons wins the $60M Claremont Extension design contract as the Foothill Gold Line board reaffirms leadership during a pivotal project phase.

Read More →
Ad Loading...
Technologyby StaffJanuary 29, 2026

Houston METRO Introduces RideMETRO Fare System

The upgraded system, which went live earlier this month, supports METRO’s METRONow vision to enhance the customer experience, improve service reliability, and strengthen long-term regional mobility.

Read More →
Managementby StaffJanuary 29, 2026

Valley Metro Sees Strong Ridership Growth in 2025

The agency ranked top five among mid-sized U.S. transit systems, defined as agencies with 15 million to 50 million annual trips.

Read More →
A b2x rewards logo and graphic reading "Read. Learn. Earn."
Managementby StaffJanuary 29, 2026

Bobit Business Media Launches B2X Rewards to Engage Transit Industry Professionals

The new program rewards B2B audience readers for engaging with trusted content and suppliers, earning them points toward events, travel, and more.

Read More →
Ad Loading...
Busby StaffJanuary 29, 2026

Subway Customer Satisfaction Reaches Record High, New York MTA Says

The subway system saw increases across all key metrics, with 62% of subway riders reporting they feel satisfied with the system overall.

Read More →
Busby StaffJanuary 28, 2026

New Orleans RTA Reaches Agreement with ATU

The agreement provides competitive wages and reflects strong labor-management collaboration, positive working relationships, and a shared commitment to building a world-class transit system for the community, said RTA CEO Lona Edwards Hankins.

Read More →
Managementby StaffJanuary 27, 2026

Keolis Retains Virginia Railway Express Contract

The new contract for Keolis and VRE will commence in July 2026, with the potential to expand to 15 years.

Read More →
Ad Loading...
Busby StaffJanuary 27, 2026

California's OCTA Advances 2026 Initiatives Centered on Balance and Sustainability

The priorities are outlined in the 2026 Board and CEO Initiatives and Action Plan, which serves as a roadmap to guide the agency’s work throughout the year and ensure continued progress and accountability on voter-approved transportation investments and essential mobility services.

Read More →