About the Street Transportation Department


To provide for the safe, efficient, and convenient movement of people and goods within the city and support citywide infrastructure projects to improve the quality of life in Phoenix.


We will provide a safe and sustainable transportation network and deliver infrastructure services through a forward thinking and dedicated workforce to address the changing needs of the city.

Department Divisions

Street Transportation is made up of five divisions.  The divisions and their functions are detailed below:

Street Maintenance
The largest division in the department, Street Maintenance maintains the city's roadways and other assets in the right-of-way. Staff repairs asphalt and potholes, sweeps streets and removes debris, conducts street resurfacing, removal of weeds in unimproved right-of-way, responds to ADA issues in the right-of-way, grades and dustproofs alleys, responds to storm related issues such as flooded streets and clogged storm drains, and provides wash maintenance. The Street Maintenance Dispatch number is available 24 hours/7 days a week.  To report a problem in the street, call 602-262-6441.

Traffic Services
Traffic Services is responsible for ensuring the safe movement of vehicular/non-vehicular traffic and pedestrians.  This division processes requests for new and replacement street signs, installs and repairs traffic signals, and provides information to the community on school-related and other safety issues. Staff can assist residents with removal of visibility obstructions in the street, provide ways to address parking issues neighborhood cut-through traffic and other safety issues.  Traffic Services staff also provides citywide bikeway coordination, and permits to use right-of-way for construction or special events. Signal problems can be reported 24 hours/7 days a week at 602-262-6021

Transportation Planning and Programming
Transportation Planning and Programming provides transportation planning, coordination and plan review for new developments, manages federal aid requests and associated compliance activities, and coordinates the department's capital improvement program. Staff also oversees city street lights, utility coordination and inspections, labor compliance, citywide procurement, small business enterprise, and floodplain/drainage programs.

Design and Construction Management
Design and Construction Management is responsible for coordinating the design and construction management and inspection of city-funded projects in the right-of-way (streets, storm drains, sidewalks, and landscaping).  Staff also provides survey services and materials testing for other city departments.  

Management Services
Management Services provides services such as fiscal management, technical services, GIS mapping, and human resources to the department.​

Street Transportation Department Facts

Management Staff

Kini Knudson


​Kini Knudson is the director for the Street Transportation Department. Kini previously served as Assistant Street Transportation Director and City Engineer. Prior to joining the Street Transportation Department, Kini served as deputy director in the Public Transit Department responsible for the Facilities Division. In his role with Public Transit, he was responsible for planning, designing, constructing, and maintaining the city’s transit maintenance and passenger facilities. Since joining the city in 2000, he has worked in several city departments, including Development Services, Public Transit, Aviation, and Engineering and Architectural Services. Kini has spent the majority of his professional career managing vertical and horizontal construction projects and programs, and possesses significant contracting and procurement experience.  Prior to his employment with the city of Phoenix, Kini was an Officer in the United States Navy Civil Engineer Corps.  Kini spent time stationed in southern Spain and in the Washington D.C. area. He is a registered Professional Engineer in Arizona. He holds a bachelor's degree in civil engineering from the University of Arizona, and a master's degree in business administration from Arizona State University.

Briiana Velez

Assistant Director

Briiana Velez is the Street Transportation assistant director over the Traffic Services and Street Maintenance divisions. She has 18 years of professional experience in transportation engineering and has been with the city of Phoenix Street Transportation Department for 16 years. Prior to joining the city, she spent two years with the Arizona Department of Transportation where she completed an 18-month engineer-in-training program. Briiana is a registered Professional Engineer in Arizona and holds a bachelor's degree in civil engineering from Arizona State University. She also holds a Certified Public Manager certificate from Arizona State University.

Chris Ewell

Deputy Director - Design and Construction Management Division

Chris Ewell is deputy director for the Street Transportation Department’s Design and Construction Management Division where he oversees the team responsible for coordinating the design and construction management and inspection of city-funded projects in the right-of-way; including providing survey services and materials testing for the department and other city departments.  Chris is an Arizona native and has dedicated over 20 years of his professional career to the delivery of public facilities to serve Arizona residents. Chris’ experience includes managing projects valued at $170 million and administering over $120 million in capital improvement program grants. He has extensive public outreach experience on projects such as the Echo Canyon Recreation Area renovations and the Patriots Square CityScape project – a catalyst for the redevelopment of downtown Phoenix. Chris holds a master’s degree in public administration with an urban management concentration and a Bachelor of Science in landscape architecture from Arizona State University.

Gladys Nkeze

Deputy Director - Administrative Services Division

Gladys Nkeze is the Street Transportation deputy director over the Management Services Division and oversees the department’s $105 million operating budget and $930 million five-year Capital Improvement Program budget. This division includes Central Records, Administration, Technical Services, Administrative Services and Fiscal Administration sections. Prior to joining the city, Gladys spent several years working for King County in Washington and in various business, budget, finance and management positions within the private sector in Michigan. She holds a bachelor’s degree from the University of Detroit Mercy and a Master’s degree in business administration from Lawrence Technical University in Michigan.

Mark Glock

Deputy Director - Street Maintenance Division

​Mark Glock is a native of Reno Nevada and earned his civil engineering degree from the University of Nevada, Reno in 1991. He began his professional career with the Nevada Department of Transportation and has 25 years of construction management experience. Mark came to the city of Phoenix in 2000 as a civil engineer and is currently the deputy director managing the Street Maintenance Division for Street Transportation.  Mark is a registered Professional Engineer in Arizona, California and Nevada. Mark also oversees the city of Phoenix New Products Committee, whose function is to research new materials and products for the Street Transportation Department and various city departments. In addition to his responsibilities with the city of Phoenix, he is a current member and past Industry Chair of the Southwest Regional Center for Job Order Contracting Excellence organization.

Mark Melnychenko

Deputy Director - Transportation Planning and Programming Division

Mark Melnychenko is the city of Phoenix Street Transportation Department's deputy director overseeing the Transportation Planning and Programming Division. As an urban planner, Mark brings 30 years of both private and public sector experience in transportation planning, project management, facility development, along with a strong planning emphasis in an engineering based department. Currently, Mark is leading the efforts associated with the Phoenix Complete Streets Initiative, Phoenix Downtown Comprehensive Transportation Plan implementation, developer coordination, multi-modal planning and ancillary studies. Mark and TPP staff are also playing a major role in Transportation 2050 mobility planning tasks linking the Public Transit and Street Transportation departments. Previously, Mark worked for the Public Transit Department and was instrumental in developing the city’s comprehensive transit passenger facility system.  Mark earned a bachelor's degree in design and a master's degree in environmental planning from Arizona State University.