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.


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Street Transportation Department Organizational Chart

Street Transportation Department Facts


Department Divisions

Street Transportation is made up of four divisions and the Office of the City Engineer.  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. The division is responsible for managing the city’s pavement preservation program, landscape maintenance in city right-of-way, the tree replacement program; and is also directly responsible for all bridges in the city and maintaining the city’s dam and levee program. Staff repairs asphalt and potholes, sweeps streets and removes debris, conducts street resurfacing, oversees the removal of weeds in unimproved 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 street lights, 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. Traffic Services also oversees utility coordination and inspections.

Programming and Project Delivery

The Programming and Project Delivery Division (PPD) is responsible for the implementation of some of department's most critical street infrastructure projects and utilizes a consistent cradle-to-grave approach on projects as they move from planning through design to construction.

PPD provides citywide and area specific transportation planning, coordination and plan review for new developments, manages federal aid requests and grant submittals, and coordinates the department's capital improvement program.

PPD is responsible for infrastructure improvements in the city's right-of-way which includes city-funded streets, landscaping and sidewalks. Major activities within PPD include overall project management and construction management for design and construction contracts, surveying and construction staking, construction inspection, materials testing, landscape design and quality control.

Management Services

The Management Services Division is responsible for the department's budget and accounting, administrative services, information technology environments and GIS information systems. This division includes Administration, Technical Services, Administrative Services and Fiscal Administration sections.


Office of the City Engineer

The Office of the City Engineer is responsible for overseeing the selection of architects, engineers and contractors to execute the city's five-year, $5.6 billion capital improvement program. This includes overseeing improvements outside of the city’s right-of-way for city-owned facilities such as parks, fire stations, police stations and libraries. The Central Records, Citywide Procurement, Labor Compliance, Small Business Enterprise, Environmental and Floodplain/Drainage Programs sections are included in the Office of the City Engineer.

Department Leadership


Kini L. E. Knudson


Kini L. E. 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 Management Services, Programming and Project Delivery, and Traffic Services 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, Street Maintenance

Chris Ewell is deputy director for the Street Transportation Department’s Street Maintenance Division.  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’s 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.



Mark Glock

Deputy Director, Programming & Project Delivery

Mark Glock is the city of Phoenix Street Transportation Department's deputy director overseeing the Programming & Project Delivery Division. Mark 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.


Matt Wilson

Deputy Director, Traffic Services

Matt Wilson is deputy director for the Street Transportation Department’s Traffic Services Division.  He has over 10 years of professional experience, primarily in traffic engineering design and analysis.  Matt joined the City in 2018, with prior experience at the Sacramento County Department of Transportation, the Oregon Department of Transportation, and several consulting firms in the Sacramento and Phoenix areas.  Matt is certified as a Professional Traffic Operations Engineer and is a registered civil engineer.  He holds a bachelor’s degree in Civil Engineering from Sacramento State University and masters’ degrees from Arizona State University in Liberal Studies and Civil, Environmental, and Sustainable Engineering.

Laurie Smith

Laurie Smith

Deputy Director, Management Services

Laurie Smith is the Deputy Street Transportation Director of the Management Services Division and oversees the department's $110 million operating budget and the $871 million five-year Capital Improvement Program budget.  This division includes the Administrative Services, Technical Services, Fiscal Services, and Contracts and Procurement sections. Laurie has nearly three decades of progressively responsible public administration experience, including over 18 years in the Street Transportation Department.  She has worked in nearly every division of the department and has extensive experience working closely with City management, elected officials and community groups.    

Eric J. Froberg, P.E.

City Engineer

Eric J. Froberg, P.E. became City Engineer in January 2019. Eric’s professional experience entails nearly two decades of extensive engineering and design experience on a variety of projects with an emphasis in public works infrastructure, residential and commercial land development. Prior to joining the city of Phoenix, Eric worked in the private sector in New Mexico. In 2013, Eric was recognized as a Top 20 Under 40 by Engineering News-Record and is actively involved with the American Council of Engineering Companies. 

Eric earned a Bachelor of Science degree in Civil Engineering from the University of Arizona and is a licensed Professional Engineer in Arizona, California and New Mexico.