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    Home About About DART Executive Staff 

DART Executive Staff Members

DART’s diverse leadership team is comprised of dedicated, focused, and experienced executives.
Nadine S. Lee
President & Chief Executive Officer
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Nadine Lee is the President & Chief Executive Officer of Dallas Area Rapid Transit (DART), a 13-city transit system covering a 700-square mile service area with bus, light rail, commuter rail, and paratransit services, where she leverages the talents and expertise of 3,700 employees to deliver the People's Transit System.

Previously, Nadine was the Chief of Staff for Los Angeles County Metropolitan Transportation Authority (Metro). In this role, Nadine drove coordination and delivery of projects, programs, and services across the organization to provide a world-class transportation system for the citizens of Los Angeles County. Three foundational culture-transformation functions were established under her leadership: Equity and Race, Customer Experience, and the Better Bus Program. She also served as Deputy Chief Innovation Officer in Metro's Office of Extraordinary Innovation where she led the development of Vision 2028, Metro's 10-year strategic plan to increase prosperity for L.A. County through improved mobility.

Prior to arriving in Los Angeles, Nadine led the development and implementation of the Flatiron Flyer Bus Rapid Transit for Denver’s Regional Transportation District (RTD), a project that produced a 40% increase in corridor ridership in its first few months of service. Nadine also led the Northwest Rail and Commuter Rail Maintenance Facility projects in the FasTracks Program.

Nadine was appointed to the Leadership APTA Committee in 2019 and is a past Director on the WTS International Board. She was awarded 2019 WTS International Woman of the Year. Nadine participated in the 2019 APTA International Study Mission to explore Mobility-as-a-Service (MaaS) in three European cities. She also studied the role of performance management in improving service delivery in four Southeast Asia cities as part of the TCRP International Transit Studies Program. A registered Professional Engineer in Colorado and Kansas, Nadine received her B.S. in Civil Engineering from the University of Missouri-Columbia.

Despite her engineering training, Nadine flexes her creative muscles in Adult Beginning Ballet several times a week and has participated in several performances.

Employment
President & Chief Executive Officer, Dallas Area Rapid Transit: 2021-present
Chief of Staff, Los Angeles County Metropolitan Transportation Authority: 2018-2021
Deputy Executive Officer, Innovation Office, Los Angeles County Metropolitan Transportation Authority: 2015-2018
Project Manager, FasTracks, Regional Transportation District: 2006-2015
Senior Project Engineer, URS Corporation: 2000-2006
Project Engineer, Korve Engineering: 1998-2000
Engineer II, I, Highway Design, HNTB Corporation: 1992-1998
Professional Memberships

Professional Engineer - Colorado (#34474), Kansas (#14650)

Awards and Professional Affiliations
UITP Global Public Transport Summit Programme Committee (present)
Transit Equity Project Advisory Committee – TransitCenter and Center for Neighborhood Technology (2020)
Leadership APTA Committee (2019-present)
FTA Transit Research Advisory Committee (2018-2019)
WTS-International Woman of the Year (2019)
WTS-Los Angeles Woman of the Year (2018)
Leadership APTA (2015)
Multi-Agency Exchange Program (2014)
RTD Leadership Academy (2012)
WTS International Board, Director (2010-2014)
WTS International Member of the Year (2010)
TCRP International Transit Studies Program (Spring 2009)
Downtown Denver Partnership Emerging Leaders Program (2005)

Bernard Jackson
Senior Executive Vice President & Chief Operations Officer
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Amina Wolf
Vice President, Bus Operations
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201 N Peak
Dallas, TX 75226

Vice President, Bus Operations

Doug Douglas
Vice President of Mobility Management Services
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Vice President of Mobility Management Services

Doug Douglas, a DART veteran of over 25 years, directs the Department of Mobility Management Services and chairs the Paratransit and Accessibility Advisory Group to DART. The department provides service requirements and functions for complementary ADA Paratransit services, including Certification/Eligibility, Service Development, Service Planning, Travel Training, Contract Compliance/Field Operations, and Parkland Hospital Shuttle Service Management. The department is also responsible for the administration of the Fixed Route Reduced Fare Program for Persons with Disabilities and the provision of DART Innovative Services, which includes GoLink and Flex Service Routes; and managing the Mesquite and UTD services.

In addition to the programs listed above, the department is actively engaging in efforts to coordinate transportation with health and human service providers, non-profit organizations, faith-based, medical, and similar agencies, as well as other local or regional transportation providers. The department is also responsible for the implementation and ongoing efforts related to the My Rides North Texas project, which is a website and app identifying transportation resources for Veterans, People with Disabilities and others in the North Central Texas Region.

Employment
Vice President of Mobility Management Services, DART, October 1995 to present
Assistant Vice President of Paratransit Services, DART, February 1994 - October 1995
Director of Paratransit Services, DART, March 1993 - February 1994
Manager of Paratransit Services, DART, January 1992 - March 1993
Certification Monitor, Paratransit Services, DART, August 1990 - January 1992
Information Specialist, Action Center, DART, January 1990 - July 1990
Professional Memberships
Member, National Steering Committee, Easter Seals Project ACTION
Member, Access Committee, American Public Transportation Association
Member, Mobility Management Committee, American Public Transportation Association
Board of Trustees, LeTourneau University
Task Force Member, Regional Public Transportation Coordination Task Force (North Central Texas Council of Governments)
Past Board Member, Variety, the Children's Charity of Texas
Past Chairman, Variety Sunshine Coach Program, Board of Directors
Past Chairman, National Steering Committee, Easter Seals Project ACTION
Past Chairman of the Board, Dallas Lighthouse for the Blind
Education
B.S. Biology/Chemistry, Texas Southern University, Houston, Texas
Postgraduate studies in Psychology, Texas Southern University, Houston, Texas
Postgraduate studies in Medicine, Meharry Medical College, Nashville, Tennessee
James Joyce
Vice President, Maintenance of Way & Facilities Maintenance
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place
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3021 Oak Lane
Dallas, TX 75226

Interim Vice President, Rail Operations

Daryl Brown
Vice President, Rail Operations
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place
Mailing Address
3021 Oak Lane
Dallas, TX 75226

Vice President, Rail Operations

Bonnie Murphy
Vice President of Commuter Rail/Railroad Management
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Mailing Address
1401 Pacific Avenue
Dallas, TX 75202

Vice President of Commuter Rail/Railroad Management

Bonnie Murphy is responsible for the day-to-day leadership of the Trinity Railway Express (TRE) and serves as Dallas Area Rapid Transit's (DART) liaison with the Fort Worth Transportation Authority (FWTA), who jointly owns the 35-mile commuter rail line with DART. She is also responsible for managing over 200 miles of DART-owned freight rail corridors.

Employment
Vice President of Commuter Rail and Railroad Management, Dallas Area Rapid Transit
President & CEO, Operation Lifesaver
General Manager, Massachusetts Bay Commuter Rail
Deputy Associate Administrator for Safety Compliance and Program Administration, Federal Railroad Administration
Regional Administrator (Region 5 - Texas, Louisiana, Oklahoma, Arkansas, New Mexico), Federal Railroad Administration
Chief Operating Officer, Trinity Railway Express, Dallas Area Rapid Transit
Brad J. Cummings
Vice President, Procurement
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1401 Pacific Avenue
Dallas,TX 75202

Vice President, Procurement

Brad J. Cummings joined DART in April 2021. Prior to DART, Cummings successfully served as Director or Chief Procurement Officer at three agencies, including Jacksonville Transportation Authority (JTA) in Jacksonville, Florida, Valley Metro in Phoenix, Arizona, and the Utah State Board of Education.

DART's Procurement Department oversees the award and management of DART construction, services, and commodity contracts. With responsibility for three divisions: Supply Chain Management; Operations and Policy; and Construction and Professional Services. Cummings not only oversees the contract award process, but also ensures all contracts and purchases are conducted and administered in accordance with DART's procurement regulations and in compliance with all applicable statutes.

Employment
Director of Contracts, Procurement and Materials Management, Jacksonville Transportation Authority
Chief Procurement Officer, Valley Metro
Director of Contracts and Procurement, Utah State Board of Education
State Contract Analyst, Division of Purchasing, State of Utah
Legal Consultant, Price Law Group
Professional Memberships
Awards and Professional Affiliations
Law, Science and Innovation Certificate from Arizona State University, Sandra Day O’Conner College of Law
Member, National Association of State Procurement Officials
Member, National Institute of Governmental Purchasing

Professional/Civic
Co-founder and Vice President, UNICEF Red
Advisor, The More Project
Education
Bachelor of Science (BS), Political Science, University of Utah, Salt Lake City
Juris Doctorate (JD), Arizona State University, Sandra Day O’Connor College of Law
Deanna Leggett
Executive Vice President of Growth/Regional Development
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1401 Pacific Avenue
Dallas, TX 75202

Executive Vice President of Growth/Regional Development

Kay Shelton
Vice President of Capital Planning
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1401 Pacific Avenue
Dallas, TX 75202

Vice President of Capital Planning

Rob Smith
Vice President of Service Planning and Scheduling
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Mailing Address
1401 Pacific Avenue
Dallas, TX 75202

Vice President of Service Planning and Scheduling

Elizabeth Reich
Executive Vice President & Chief Financial Officer
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Mailing Address
1401 Pacific Avenue
Dallas, TX 75202

Chief Financial Officer

Julius Smith
Vice President, Chief Information Officer
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1401 Pacific Avenue
Dallas,TX 75202

Vice President, Chief Information Officer

Jenny Barket
Chief of Staff
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Chief of Staff

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DART Headquarters

1401 Pacific Avenue
Dallas,TX 75202

Gregory Elsborg
Vice President, Chief Innovation Officer
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1401 Pacific Avenue
Dallas,TX 75202

Vice President, Chief Innovation Officer

Gregory Elsborg joined Dallas Area Rapid Transit (DART) in 2019 as Vice President and Chief Innovation Officer.

As Chief Innovation Officer, Gregory's responsibilities include driving new business partnerships, growing DART's Mobility as a Service (MaaS) offering and leveraging technology to facilitate innovation across the enterprise. Greg has a strong track record of driving ecommerce, mobile and innovation initiatives across a variety of industries throughout his career. His background includes Fortune 500 and global leadership roles in digital innovation and brand strategy spanning various industries.

Originally from the United Kingdom, Gregory studied Marketing at Lancaster University Management School, a Top 5 UK Business School, graduating with multi-disciplinary Honors. After a successful career in the UK, including general management and marketing leadership roles in the transit industry, he relocated to the United States in 2011.

Employment
Group Director, Global Mobile & Digital Innovation, Rexel
Director, Digital Content, Allied Electronics & Automation
Brand & Marketing Strategy Manager, GameStop
New Product Introduction (NPI) Marketing Manager, Mouser Electronics
Marketing Communications Manager, Digital Barriers PLC
Education
Bachelor of Science, Business Studies & Marketing, Lancaster University Management School
International Marketing, University of Colorado at Boulder - Leeds School of Business
Nevin Grinnell
Vice President, Chief Marketing Officer
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1401 Pacific Avenue
Dallas,TX 75202

Vice President, Chief Marketing Officer

Nevin Grinnell provides executive leadership to DART's marketing, advertising and customer service programs. He is responsible for the agency's marketing and advertising strategy and brand development. He has an extensive background in long-term strategy development, innovation, advertising, electronic media, promotional activation and e-commerce with international, national and regional brands. He is part of DART's Executive Management Team (EMT).

Employment
Vice President, Chief Marketing Officer, Dallas Area Rapid Transit: 2011 - Present
Senior Vice President of Marketing, NCH - Retail Products Group: 2008 - 2011
Vice President of Marketing, Innovation, Dr Pepper Snapple Group: 2006 - 2007
Director of Marketing, Innovation, Carbonated Soft Drinks, Dr Pepper Snapple Group: 2005 - 2006
Director of Marketing, Dr Pepper Trademark, Dr Pepper Snapple Group: 2002 - 2005
Director of Marketing, Seven UP, Schweppes, and Vernor's Brands, Dr Pepper Snapple Group: 2001 - 2002
Brand Manager, Seven UP, Dr Pepper Snapple Group: 1999 - 2001
Product Manager, Seven UP, Dr Pepper Snapple Group: 1997 - 1998
Product Manager, Lay's Potato Chips and Tostitos Tortilla Chips, Frito-Lay: 1996 - 1997
Product Manager, 1996 Corporate Summer Promotion, Frito-Lay: 1995 - 1997
Associate Product Manager, Frito-Lay Sandwich Crackers, Frito-Lay: 1993 - 1995
Assistant Product Manager, New Products, Frito-Lay: 1992 - 1993
Associate Product Manager, Kraft Foods: 1991
Territory Sales Manager, Johnson & Johnson: 1987 - 1990
Professional Memberships
Board Member, Volunteer Center of North Texas
Board Member 2005 - 2007, Dallas/Fort Worth Minority Business Council
Education
MBA, University of North Carolina, Chapel Hill, NC
BA, Morehouse College, Atlanta, GA
Charles Cato
Chief of DART Police
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Chief of DART Police
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Mailing Address
2111 S Corinth Street Road
Dallas, TX 75203
Donna E. Johnson
Vice President - Chief Safety Officer
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1401 Pacific Avenue
Dallas,TX 75202

Vice President – Chief Safety Officer

Donna Johnson has over 30 years of Safety experience and 14 years of service at DART. Currently she serves as the Vice President - Chief Safety Officer, reporting directly to the President/Executive Director, where she manages the agency's operational safety program with the objective of ensuring the protection of DART employees, passengers, property and stakeholders.

She is an accomplished safety leader and has an extensive background in bus/rail safety, operations safety, industrial safety and regulatory compliance. Previously, Johnson manage safety programs at three major corporations (PepsiCo, Coca Cola, and Concentra) and was responsible for ensuring the safety for over 35,000 employees in 20 states under several USDOT operating administrations; FHWA, FMCR, PHMSA, FAA and FTA.

Johnson recently served as Director of Safety for the agency, where she led a team of safety professionals responsible for safeguarding DART's employees, passengers and contractors.

Johnson holds dual professional safety certifications from the World Safety Organization and the US Department of Transportation Safety Institute and is a member of the APTA Safety Committee and the Texas Transit Safety and Security Professional Organization.

Employment
Vice President – Chief Safety Officer, Dallas Area Rapid Transit
Interim Vice President, Chief Safety Officer – Dallas Area Rapid Transit
Director of Operations Safety – Dallas Area Rapid Transit
Sr. Manager of Safety Analysis and Compliance – Dallas Area Rapid Transit
Interim Director of Operations Safety – Dallas Area Rapid Transit
Manager of Industrial Safety and Health – Dallas Area Rapid Transit
Safety Specialist – Dallas Area Rapid Transit
Consulting Manager Safety & Substance Abuse – Concentra Medical Center
Sr. Safety Specialist – Concentra Medical Centers
Safety Analyst – Coca Cola Enterprises
Transportation Compliance Specialist – PepsiCo Food Systems
Rosa Medina-Cristobal
Vice President of Human Resources
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Mailing Address
1401 Pacific Avenue
Dallas,TX 75202

Vice President of Human Resources

Edie Diaz
Vice President of Government and Community Relations
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1401 Pacific Avenue
Dallas,TX 75202

Vice President, Government and Community Relations

Edie Diaz is Vice President of Government and Community Relations for Dallas Area Rapid Transit (DART). Currently, Diaz is responsible for managing the Government Relations, Community Affairs and Transit Education team. She and the staff have the responsibility for vast stakeholder group relations and managing DART legislative issues and agendas at the state, federal, regional and 13 service area cities level.

Diaz holds extensive professional experience in urban community development and planning, marketing and outreach, special populations and diversity, government administration, legislative advocacy, program and project management, evaluation, procurement and compliance, and building strong collaborations and partnerships across the public and private sectors.

In Diaz's professional career she spent 15 years working on community revitalization initiatives in Chicago to help inform national efforts of best practices. During her years in Chicago she worked for an urban community development organization supervising projects and monitoring the outcomes across major U.S. cities of Federal omnibus spending acts. Later she took to a career in public policy advocating for early childhood education and facilities development across the state of Illinois. In addition, she served on the Climate Change Task Force for the City of Chicago and presented at international conferences regarding green buildings innovation including the U.S. Green Buildings Council, Greenbuild. She also taught for many years at the largest Catholic university in the country, DePaul University. Diaz also worked for the Executive Office and as a direct report to several Chief Executive Officers at the second largest public housing authority in the country, the Chicago Housing Authority, while the City and agency were undergoing the largest transformation of public housing into mixed-income neighborhood developments in the world.

Employment
Vice President, Government and Community Relations, Dallas Area Rapid Transit, Dallas, Texas
General Manager, Neighbor Up, Dallas, Texas
Executive Office, Government and Community Affairs, Chicago Housing Authority, Chicago, Illinois
Adjunct Faculty, DePaul University, Chicago, Illinois
Senior Policy Analyst, Latino Policy Forum, Chicago, Illinois
Consultant, Community Development and Research Solutions, Chicago, Illinois
Research Associate, Egan Urban Center, Chicago, Illinois
Professional Memberships
Board Member, Trinity Coalition, Dallas, Texas
Board Member, CitySquare, Dallas, Texas
Member, Skyline High School, Site Based Decision Making Committee, Dallas, Texas
Member, DISD Superintendent's Business and Community Advisory Committee, Dallas, Texas
Member, Southeast Dallas Task Force Committee, Dallas, Texas
Member, Eastfield College Pleasant Grove Advisory Committee, Dallas, Texas
Member, Dallas Women's Foundation, Cross-Sector Women's Professional Committee, Dallas, Texas
Facilitator, DFW Project Unity, Dallas, Texas
Member, American Sociology Association
Member, Alpha Kappa Delta International Sociology Honors Society
Member, U.S. Green Buildings Council
Former Member, Chicago Climate Change Task Force
Education
Master of Arts, Urban Sociology, DePaul University, Chicago, Illinois
Bachelor of Science, Sociology and Gender Studies, Grand Valley State University, Allendale, Michigan
Gabriel Beltran
Interim Vice President of Belonging
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1401 Pacific Avenue
Dallas, TX 75202

Interim Vice President of Belonging

Gene Gamez
General Counsel
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place
Mailing Address
1401 Pacific Avenue
Dallas, TX 75202

General Counsel

Chris Koloc
Director of Internal Audit
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place
Mailing Address
1401 Pacific Avenue
Dallas, TX 75202

Director of Internal Audit

Lon Nickles
Board Administrator of the Office of Board Support
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place
Mailing Address
1401 Pacific Avenue
Dallas, TX 75202

Board Administrator of the Office of Board Support

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