The State of the System Report is a compilation of the physical inventory and status of the Maricopa County Department of Transportation’s infrastructure. It addresses roadway congestion, traffic safety, low volume road paving, bridges, and pavement conditions. Also, included are recommendations for future improvements within each of the infrastructure categories. The SOS report has been produced annually since 1998.

The Arizona Statewide Transportation Improvement Program identifies statewide priorities for transportation projects. It is a compilation of projects utilizing various federal funding programs and includes highway projects on the cities, counties, and state highway systems, as well as projects in the National Parks, US Forest Service, and Indian Reservation Roads. This is a four-year project list compiled in cooperation with the Federal Highway Administration, Federal Transit Administration, Council of Governments, and the Metropolitan Planning Organizations. Projects are selected for inclusion in the STIP based on adopted procedures and criteria.

An update to the Flagstaff Regional Plan 2030 (FRP30), to bring its Road Network Illustration (Map 25) into compliance with Arizona Revised Statute requirements and to resolve inconsistencies between Map 25 and parts of the Flagstaff City Code. This update does not alter the intent of FRP30; it is only concerned with correcting errors, removing legal vulnerability, and improving the readability of FRP30.

This is Maricopa County's long-range plan for transportation. This plan was last produced in 1997. The Maricopa County Department of Transportation has undertaken the process of updating the Transportation System Plan because much has happened in Maricopa County since 1997. This updated TSP establishes an organized approach to the planning, design and construction of Maricopa County's transportation system through 2026.

This report examines community concerns and challenges related to extreme heat during a typical year and during the COVID-19 pandemic. It considers which policies have helped address these concerns and challenges and identifies potential opportunities to further support community members with the challenge of extreme heat. The report focuses specifically on American Indian and Latino/a community members, given their disproportionate risk of experiencing detrimental impacts of extreme heat and overlapping risk factors for negative outcomes of COVID-19.

This Plan defines visionary, yet pragmatic, investment choices Arizona will make over the next 25 years to maintain and improve its multimodal transportation system. The Plan is not rigid or fixed. It is part of a continuous process of planning, implementation, operation, and preservation and will evolve over time to reflect and be responsive to future changes in needs, resources, and priorities. This Plan is strategic in nature, examining investment types for ADOT’s capital program; it does not examine nor recommend any specific projects.