The level of street-network sprawl in new development in Sonora followed a zig-zag trend with an overall increase. To get a sense of how street development has changed in Sonora, we can consider three of its most populous cities: Hermosillo, Ciudad Obregón and El Alamito. Out of the three cities, Ciudad Obregón does not follow the same trend as the region. The level of street-network sprawl in new development in Ciudad Obregón rose steadily.

How do development practices in Sonora fare in comparison to others in México? Most recently in 2006-2020, street construction in Sonora was the 10th-most disconnected out of the 31 regions in México. Its position in the ranks since 1975 has fallen; relative to other regions in México, street construction in Sonora has become more connected. Sonora ranked 5th in 1975, 3rd in 1976-1990, 2nd in 1991-2005 and 10th in 2006-2020.

As of 2020, the city with the most disconnected street network in Sonora is El Alamito with an SNDi of 4.0, which is sprawly. Conversely, the most connected city is San Luis Río Colorado with an SNDi of 1.06, which is very well-connected. See trends for these cities: San Luis Río Colorado, El Alamito

The level of street-network sprawl in the aggregate network in Sonora rose steadily. To get a sense of how the aggregate street network has changed in Sonora, we can consider three of its most populous cities: Hermosillo, Ciudad Obregón and El Alamito. Out of the three cities, El Alamito does not follow the same trend as the region. The level of street-network sprawl in the aggregate network in El Alamito followed a zig-zag trend with an overall increase.

To date, Sonora is the 3rd-most disconnected out of the 31 regions in México. Its position in the ranks since 1975 has risen; relative to other regions in México, the street network in Sonora has become more disconnected. Sonora ranked 5th in 1975, 4th in 1976-1990, 4th in 1991-2005 and 3rd in 2006-2020.