The Arizona Department of Transportation (ADOT) completed a comprehensive customer satisfaction assessment in July 2009. ADOT commissioned the assessment to acquire statistically valid data from residents and community leaders to help it identify short-term and long-term transportation priorities. The survey found that state residents feel: Safe on the state's highways; ADOT keeps the roads clean; ADOT keeps the landscaping well maintained; Satisfied with the Motor Vehicle Division; ADOT is moving in the right direction; Dissatisfied with condition of highway shoulders (should be improved); Dissatisfied with nighttime visibility of highway striping; Dissatisfied with the frequency of public transit where they live; and Dissatisfied with traffic flow on highways during rush hour. Both residents and community leaders said the transportation issues with the highest priorities were: Repairing and maintaining existing highways; Enhancing highway safety; and Relieving congestion on highways.

Land Use and Traffic Congestion is an investigation into the links among land use, travel behavior, and traffic congestion. Researchers focused on four transportation corridors in the Phoenix area: three older neighborhoods with relatively mixed, higher density land use, and one suburban area with lower density but high traffic volumes. The analysis suggested that the higher density corridors exhibited less congestion due to the greater mix of uses, shorter trip lengths, more travel by transit and non-motorized modes, and the presence of a secondary street grid system.