System Performance
MAGnitude is the web based dashboard that supports the Maricopa Association of Governments' Performance Measurement Program. This interactive visualization tool compiles transportation performance measurement information collected and analyzed by the Regional Transportation Plan partners in the Maricopa County, AZ region.

• MAG the Maricopa Association of Governments
• ADOT the Arizona Department of Transportation and
• Valley Metro the Regional Transit Agency

The Regional Transportation Plan RTP, adopted in 2003, is a performance-based comprehensive Regional Plan that covers all major modes of transportation. The plan was adopted in conjunction with Proposition 400 - a voter-approved extension of a half-cent sales tax for transportation improvements in the region.