The Central Phoenix Transportation Framework Study (CPHX) was a continuing effort to identify long-range transportation needs for the center of the MAG region in an area bounded by SR-101L on the north, east, west and the Gila River Indian Community on the south.

Beginning in 2010 and completed in 2014, the effort produced a series of technical memorandums on the following subject areas:

  • Improvement Strategies
  • I-10/I-17 “Spine” Corridor
  • Freeway System Plan
  • Direct HOV ramps and Park-n-Rides
  • Direct DHOV Ramps Development Policy Guidance
  • Diverging Diamond Interchanges
  • Active Traffic Management
  • Roadway Maintenance
  • Freeway Interchange Options
  • Arterial Improvement Strategies
  • Transit Improvement Concepts
  • Pedestrian/Bicycle Concepts


Each technical memorandum, along with the study executive summary poster, can be found under “Materials”.

About MAG

The Maricopa Association of Governments (MAG) is a Council of Governments (COG) that serves as the regional planning agency for the metropolitan Phoenix area.

Title VI

Title VI requires that no person in the United States of America shall, on the grounds of race, color, or national origin, be excluded from the participation in, be denied the benefits of, or be otherwise subjected to discrimination under any program or activity for which MAG receives federal financial assistance.

Get in Touch

  • Address: 302 N 1st Ave., Suite 300
    Phoenix, Arizona 85003

  • Phone: (602) 254-6300

  • FAX: (602) 254-6490

  • Email: