Tucson Department of Transportation (TDOT)

TDOT employs a wide range of professional’s from design engineers to street sweeper operators – all who play a vital role in keeping Tucson’s nearly 1,900 miles of streets safe and operating efficiently.

TDOT provides for the safe movement of Tucsonans throughout our community – in vehicles, on bicycles, and as pedestrians. It also operates Tucson’s transit services – Sun Tran bus service and the Sun Link modern streetcar.

While enacting Mayor and Council policy, TDOT partners with citizens, other City Departments, and regional and state agencies and consistently achieves it goals to create, maintain, and operate a safe and reliable transportation system in a great Southwestern City.

Mission Statement

To create and operate a safe and reliable multi-modal system for moving people and goods throughout our community.

Vision Statement

To operate a model transportation system by providing customer-driven services.

Values Statement

To conduct ourselves with integrity, efficiency, civility, courtesy, and respect.


Regional Transportation Authority (RTA)

The Regional Transportation Authority is the fiscal manager of the $2.1 billion, 20-year RTA plan, which was approved by Pima County voters on May 16, 2006. Voters also approved a countywide half-cent transaction privilege tax to fund the RTA plan through fiscal year 2026. The RTA is governed by a nine-member board, including representatives from the Cities of South Tucson and TucsonPima County, the Towns of MaranaOro Valley and Sahuarita, the Pascua Yaqui Tribe, the Tohono O’odham Nation and the Arizona State Transportation Board.

The RTA plan includes roadway, safety, transit, and environmental and economic vitality projects, and is in its 8th year of implementation with 540 projects completed through December 2013. Plan goals include improving safety, cross-town mobility and reducing congestion. $76 million in RTA funds is dedicated to the Downtown Links project.

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HDR Inc.

Established in 1917, HDR is a national engineering, architectural, and consulting firm that delivers tailored solutions through a strong local presence. HDR has been providing professional services to municipal and state agencies from its offices in Arizona since 1959. HDR’s Tucson office began as Johnson-Brittain & Associates, Inc., before joining the HDR family. The Tucson office is staffed with over 30 professionals with extensive experience in the fields of transportation, water, environmental services, and resource management. As part of an integrated firm of 8,500 employees, the Tucson office has access to expertise in over 185 offices throughout the United States and abroad. HDR strives to deliver great projects while building strong relationships along the way. HDR has been part of the Downtown Links team for several years and is excited about the opportunities provided by this key infrastructure project for the City of Tucson.