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.

The Maricopa County Regional Trail System is a collection of trail corridors under the jurisdiction and control of many different agencies. Maricopa County has identified the Sun Circle and Maricopa Trails as its highest priorities for completion. At any time, should the opportunity arise, lower priority segments may be developed. The County’s priority designation may or may not coincide with the priorities of any agency whose trails have been identified as components of the regional system.