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In 2004, Maricopa County voters extended an existing sales tax initiative that generated funding for transportation projects, adding a significant investment in light rail, new and improved freeways, street improvements, and bus transit features. As of June 2011, a significant number of projects had been completed, but determining the effect these projects had on congestion, mobility, and quality-of-life needs could not be measured at that point. As such, the Maricopa Association of Governments, Arizona Department of Transportation, Regional Pubic Transportation Authority, and METRO rail—the four primary organizations responsible for oversight or implementation of elements of the Regional Transportation Plan—can take several steps to improve the plan's cost-efficiency and effectiveness. Specifically, improved performance measurement, improved coordination between entities, and more consolidated efforts between transit agencies could realize cost savings and improved operational outcomes. Further, strengthening the roles and responsibilities of the Maricopa Association of Governments Transportation Policy Committee and the Citizen's Transportation Oversight Committee could enhance effectiveness and improve accountability to taxpayers.
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