Regional Transportation Plan (RTP)

Regional-Transportation-Plan

What is MOMENTUM?

MOMENTUM 2050 is our regional transportation plan (RTP). It provides a broad vision for the region’s multimodal transportation future and serves as a long-term blueprint for our transportation system. MOMENTUM is performance-based and reflects funding the region has programmatic oversight for, including federal, state, and regional revenues.

What is included in MOMENTUM?

MOMENTUM looks out to the horizon year of 2050. The plan includes commitments to large capital projects, such as new freeway and high-capacity transit infrastructure, as well as investments in program areas such as safety, air quality, and active transportation. This programmatic strategy provides greater flexibility and allows the region to be nimble, responding and adapting to an ever-changing future.

History of the RTP

The MAG region is proud of its unique legacy in investing in our transportation system. We would not have the system we have today without a regional commitment to fund multimodal transportation. The RTP creates a vision, but it is regional funding that brings that vision to life.

In 1985, voters passed Proposition 300, beginning the collection of a 20-year, half-cent sales tax focused on establishing the Valley’s freeway network. In 2004, voters approved Proposition 400, a 20-year extension of the dedicated half-cent sales tax to fund multimodal transportation investments, continuing the needed expansion of the region’s system. Combined, the revenue generated from these propositions delivered Loops 101, 202, and 303, light rail and streetcar, arterial street investments, and contributions to a growing multimodal network — a total investment of over $12 billion.

With Proposition 400 collections set to expire at the end of 2025, MAG embarked on a multi-year planning effort to develop a new investment plan to serve as the basis for the extension of Proposition 400. A proposed 25-year extension of the dedicated half-cent sales tax and is expected to be placed on a ballot for Maricopa County voters’ consideration as early as November 2022.

MOMENTUM: Four Years in the Making

Long-range regional transportation planning is a continual, cooperative, and comprehensive process that requires collaboration among many stakeholders. The MOMENTUM planning process kicked off in 2018 with a values mapping effort aimed at understanding public attitudes and perceptions about regional transportation needs and investment priorities. The final report Transportation Values & Priorities in the Maricopa Region served as the plan’s foundation.

Over the next three years, MAG staff worked closely with elected officials to develop the plan. Throughout the entire process, there was continuous public and stakeholder engagement. The Early Phase Public Input Report and Late Phase Public Input Report documents feedback received.

The MAG Regional Council unanimously approved the MOMENTUM 2050 plan on December 1, 2021. The U.S. Department of Transportation issued a Finding of Conformity for MAG’s air quality conformity analysis of the plan on December 15, 2021.

Regional Transportation Plan MOMENTUM 2050

Click on the image above to view the interactive MOMENTUM 2050 Regional Transportation Plan.

Click here for a printer-friendly and digitally accessible version of MOMENTUM 2050.

Plan Amendments

Periodically, MAG amends the RTP to reflect the changing priorities and needs of our region. MAG documents all plan amendments. To review the latest plan amendments, click below.

Transportation Improvement Program (TIP)

The Transportation Improvement Program (TIP) is a companion to the RTP. Where the RTP is a long-range vision for our transportation future, the TIP is a detailed near-term project listing and, by definition, serves as the first four years of the RTP.


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