The level of street-network sprawl in new development in Arizona peaked in 1991-2005. To get a sense of how street development has changed in Arizona, we can consider three of its most populous cities: Phoenix, Mesa and Tucson. Out of the three cities, Mesa does not follow the same trend as the region. The level of street-network sprawl in new development in Mesa was at its lowest in 1976-1990.

How do development practices in Arizona fare in comparison to others in United States? Most recently in 2006-2020, street construction in Arizona was the 13th-most disconnected out of the 44 regions in United States. Its position in the ranks since 1975 has risen; relative to other regions in United States, street construction in Arizona has become more disconnected. Arizona ranked 23rd in 1975, 14th in 1976-1990, 15th in 1991-2005 and 13th in 2006-2020.

As of 2020, the city with the most disconnected street network in Arizona is Casas Adobes with an SNDi of 4.7, which is sprawly. Conversely, the most connected city is Tucson with an SNDi of 2.85, which is relatively well-connected. See trends for these cities: Tucson, Casas Adobes

The level of street-network sprawl in the aggregate network in Arizona rose steadily. To get a sense of how the aggregate street network has changed in Arizona, we can consider three of its most populous cities: Phoenix, Mesa and Tucson. Out of the three cities, Mesa does not follow the same trend as the region. The level of street-network sprawl in the aggregate network in Mesa was at its lowest in 1976-1990.

To date, Arizona is the 22nd-most disconnected out of the 44 regions in United States. Its position in the ranks since 1975 has risen; relative to other regions in United States, the street network in Arizona has become more disconnected. Arizona ranked 23rd in 1975, 20th in 1976-1990, 21st in 1991-2005 and 22nd in 2006-2020.