Comparisons
Diyala vs. the other two most closely populated regions in Iraq: Al-Muthannia and Wasit
Diyala in context: Street-network sprawl of new development
The level of street-network sprawl in new development in Diyala was at its lowest in 1991-2005. To get a sense of how street development has changed in Diyala, we can consider three of its most populous cities: Qaryat at Taliah, Al Khalis and Baqubah. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in new development in Qaryat at Taliah followed a zig-zag trend with an overall increase. The level of street-network sprawl in new development in Al Khalis peaked in 1991-2005. The level of street-network sprawl in new development in Baqubah rose steadily.
How do development practices in Diyala fare in comparison to others in Iraq? Most recently in 2006-2020, street construction in Diyala was the 10th-most disconnected out of the 18 regions in Iraq. Its position in the ranks since 1975 has risen; relative to other regions in Iraq, street construction in Diyala has become more disconnected. Diyala ranked 12th in 1975, 8th in 1976-1990, 10th in 1991-2005 and 10th in 2006-2020.
Diyala in context: Aggregate street-network sprawl
As of 2020, the city with the most disconnected street network in Diyala is Al Khalis with an SNDi of 3.17, which is moderately connected. Conversely, the most connected city is Qaryat at Taliah with an SNDi of 2.1, which is well-connected. See trends for these cities: Qaryat at Taliah, Al Khalis
The level of street-network sprawl in the aggregate network in Diyala was at its lowest in 1991-2005. To get a sense of how the aggregate street network has changed in Diyala, we can consider three of its most populous cities: Qaryat at Taliah, Al Khalis and Baqubah. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in the aggregate network in Qaryat at Taliah followed a zig-zag trend with an overall decrease. The level of street-network sprawl in the aggregate network in Al Khalis rose steadily. The level of street-network sprawl in the aggregate network in Baqubah rose steadily.
To date, Diyala is the 12th-most disconnected out of the 18 regions in Iraq. Its position in the ranks since 1975 has not changed. Diyala ranked 12th in 1975, 11th in 1976-1990, 11th in 1991-2005 and 12th in 2006-2020.