Traffic Volume Counts

Pima Association of Governments Traffic Volumes Map

For non-city signals you may contact the following goverment offices:

  • State of Arizona (602) 620-5427
  • Pima County (520) 740-6745
  • Town of Marana (520) 297-2920
  • Town of Oro Valley (520) 229-4700
  • City of South Tucson (520) 770-0031

Intersection Volume Counts

Traffic Data for the City of Tucson


Pedestrian Traffic Signal Operation


PELICAN Traffic Signal

The PEdestrian LIght Control ActivatioN (PELICAN) system provides a safe, two-stage crossing for pedestrians.

Pedestrian Crossing Mitigation Steps

  1. Consider an island where applicable before signalization.
  2. Consider advance warning flashers where applicable.
  3. Consider a pedestrian actuated flasher where applicable.
  4. Consider a pedestrian actuated PELICAN traffic signal where applicable.

    Pelican Warrants:

    • The location must have 100 or more pedestrians for 4 hours of the day or greater than 190 pedestrians during the peak 1 hour.
    • When the location has 5

Traffic Signal Operation

How traffic signals work

The public's understanding of the function of traffic signals can improve driving habits by reducing speeding and associated traffic accidents. The more drivers know about the operation of traffic signals, the less they will be frustrated when waiting for a signal to change.

Why are traffic signals needed?

As traffic volumes increase beyond the capability of lesser controls such as a four-way stop, it may be necessary to install a traffic signal.

Left Turn Arrows

Protected Left Turn Arrows

Protected left turn signals include a red arrow along with the normal green and amber arrow. They allow left turning drivers to proceed only on the green arrow. This turning method is very inefficient and generally not used in Tucson. Adding inefficiencies to signal timing reduces overall capacity and increases congestion. With increased congestion comes the potential for an increase in certain types of accidents.

Traffic Signs & Striping Section

The Citizen Request Studies/Signing and Striping Section responds to concerns expressed by citizens, Mayor and Council offices, and other government agencies relating to safety issues, signs, striping, and the collection of field data. Studies relating to traffic signals warrants, pedestrian flasher warrants, crosswalks, and spot speeds are performed by this section. The civil engineer and engineering technicians also work closely with contractors and inspectors to coordinate signing and striping needs for new roadway construction and resurfacing of existing roadways.

Traffic Signal or Left Turn Arrow Request

Each year, the City receives many inquiries concerning the installation of new traffic signals or left turn arrows. Engineering studies are done to determine where new devices are needed.

Our review may include an examination of:

Intelligent Transportation Systems and Signal Design Section

The Intelligent Transportation Systems and Signal Design Section operates the Regional Traffic Operations Center (RTOC). The RTOC communicates to and controls all City of Tucson traffic signals. In addition, they work with the other jurisdictions in the area including the Arizona Department of Transportation, Pima County, Town of Marana, Oro Valley and City of South Tucson connecting their signals to the city system to provide a seamless transportation system in the valley.

Traffic Engineering Frequently Asked Questions

Signals aren't working, or they aren't working properly.
Contact Streets and Traffic Maintenance at (520) 791-3191 from 8 AM to 5 PM or City Communications at (520) 791-4144 during other hours.
Requests for traffic signal installations; requests for speed humps.
Contact Traffic Engineering at (520) 791-4259 from 8 AM to 5 PM.
Why doesn't the "WALK" indication stay on until I'm completely across the street?
The pedestrian "WALK" display indicates when it is safe to begin your crossing and may b