Our Team


Margaret Dunn

Margaret Dunn has had trolleys in her blood since her college days at Arizona State University. Of course, she never suspected that her part-time job as a trolley driver would end up becoming her life's calling. With more than 30 years in the business – and having driven trolleys more than 1 million miles over the years – Margaret can safely say she’s seen and experienced it all when it comes to trolleys, motor coaches and transporting people safely from place to place.

Margaret moved to Scottsdale (along with Ollie the Trolley) in 1991, and she's been deeply involved in the community every day since then. She serves on the Arizona Transit Association Board, Scottsdale Convention and Visitor Bureau Board, Tempe Tourism Board, City of Scottsdale Tourism Task Force, Phoenix Community Alliance Board and New Pathways for Youth Board (formally Youth at Risk).  She also has served on the City of Scottsdale Tourism Development Commission, Planning Commission, Transportation Commission, and Ethics Committee.

After getting the bug to return to college and further evolve her skills, Margaret graduated in 2010 from ASU's Global Institute of Sustainability with a degree in Urban Dynamics with a focus in Transit-Oriented Development. In 2012, she graduated with an Executive MBA from ASU’s W.P. Carey School of  Business.

Melissa Schubert

Melissa has been a part of Dunn Transportation’s team since 2002 — a dozen years over which she has grown along with the company. Melissa began her career at Dunn as a part-timer and as an intern while attending college. Today, she’s a key player on the Dunn team overseeing Human Resources and Customer Service.

A 2005 graduate of Arizona State University, Melissa received a Bachelor of Science in Tourism Management. In 2012, she completed her Certificate of Human Relations at Phoenix College. Most recently, Melissa returned to Arizona State to attended the prestigious Small Business Leadership Academy at the W.P. Carey School of Business. She is currently pursuing a certification as a Professional in Human Resources with anticipated completion in June 2014.


Oscar L. Munoz

Oscar Munoz serves as the Maintenance Manager for Dunn Transportation. Prior to joining Dunn, Oscar worked as a maintenance supervisor for the Phoenix Transit Heavy Maintenance Facility, where he oversaw a team of more than 175 mechanics, utility personnel, and electronic technicians. Oscar’s responsibilities at the City included scheduling, dispatch, fueling and maintenance for approximately 400 buses citywide.

During his years with Phoenix Transit, Oscar supervised and successfully completed a number of multimillion-dollar special projects, including the Make Ready Program (acceptance and inspection of 126 new buses and 20 new para-transit units added to public transit fleet); the C+ Program (power train retrofit, interior upgrades, exterior paint and bodywork for 156 buses); the Scheidt & Bachmann Fare Box Project (removal and replacement of fare boxes and the fare security systems for more than 800 buses); and the VMS project (maintenance and repairs of radio communication equipment for 400 buses).


Russell Smith

Russell Smith has been in the transit and transportation industry for 24 years, starting his transit career in August 1990 as a bus operator. In 2001, Russell advanced his career by seeking training in operations, dispatching, scheduling, safety, human resources and maintenance as well as Orb-Cad AVL Systems.

As a lead operations and road supervisor, Russell is highly experienced with Fixed Route, Rapid and Express services. He has served on various committees for the design and implementation of employee handbooks and work rules and has intimate knowledge of union work rules and procedures.

Russell is certified by the U.S Department of Transportation Safety Institute to instruct bus operator trainers. He is also licensed by the Arizona Department of Insurance as a Casualty, Property, Life, Accident/Health Producer. He is currently a student at Mesa Community College, working toward his degree in Management.


Katie Harrison

Katie Harrison has worked for Dunn Transportation as the organization’s accountant for nearly a decade. Katie’s daily responsibilities include preparation of financial statements, budgets and general ledger reconciliations. She has over 20 years of practical experience in accounting.

Katie earned her Masters in Finance from the Institute of Financial Management, University of Wales, Bangor, Gwynedd, United Kingdom in June 2002. She received the Merit Award for overall performance. In May 1987, she earned a Bachelor of Arts  in Accounting from North Carolina State University.


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