A. The director shall place and maintain traffic control devices that conform to the manual and specifications prescribed in section 28-641 on all state highways as the director deems necessary to indicate and to carry out this chapter or to regulate, warn or guide traffic.

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Terms Used In Arizona Laws 28-642

  • Director: means the director of the department of transportation. See Arizona Laws 28-101
  • highway: means the entire width between the boundary lines of every way if a part of the way is open to the use of the public for purposes of vehicular travel. See Arizona Laws 28-101
  • Jurisdiction: (1) The legal authority of a court to hear and decide a case. Concurrent jurisdiction exists when two courts have simultaneous responsibility for the same case. (2) The geographic area over which the court has authority to decide cases.
  • Local authority: means any county, municipal or other local board or body exercising jurisdiction over highways under the constitution and laws of this state. See Arizona Laws 28-101
  • State: means a state of the United States and the District of Columbia. See Arizona Laws 28-101
  • State highway: means a state route or portion of a state route that is accepted and designated by the board as a state highway and that is maintained by the state. See Arizona Laws 28-101
  • Traffic: means pedestrians, ridden or herded animals, vehicles and other conveyances either singly or together while using a highway for purposes of travel. See Arizona Laws 28-601

B. A local authority shall not place or maintain a traffic control device on a highway under the jurisdiction of the director except by the director’s permission.

C. In cooperation with local authorities, the director shall synchronize traffic control signals on a state highway that has a traffic flow exceeding fifteen thousand motor vehicles per day in a vehicle emissions control area as defined in section 49-541.

D. The director shall adopt rules pursuant to Title 41, Chapter 6 to establish criteria for the installation and maintenance of directional signs for universities prescribed in section 15-1601, for community colleges as defined in section 15-1401 and for the campus of a regionally accredited college or university.