Comparisons
Diffa vs. the other two most closely populated regions in Niger: Tillabery and Agadez
Diffa in context: Street-network sprawl of new development
The level of street-network sprawl in new development in Diffa followed a zig-zag trend with an overall decrease. To get a sense of how street development has changed in Diffa, we can consider three of its most populous cities: Diffa, Maïné-Soroa and N'guigmi. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in new development in Diffa followed a zig-zag trend with an overall increase. The level of street-network sprawl in new development in Maïné-Soroa was at its lowest in 1991-2005. The level of street-network sprawl in new development in N'guigmi was at its lowest in 1976-1990.
How do development practices in Diffa fare in comparison to others in Niger? Most recently in 2006-2020, street construction in Diffa was the 5th-most disconnected out of the 8 regions in Niger. Its position in the ranks since 1975 has risen; relative to other regions in Niger, street construction in Diffa has become more disconnected. Diffa ranked 8th in 1975, 7th in 1976-1990, 7th in 1991-2005 and 5th in 2006-2020.
Diffa in context: Aggregate street-network sprawl
As of 2020, the city with the most disconnected street network in Diffa is Maïné-Soroa with an SNDi of 2.26, which is well-connected. Conversely, the most connected city is N'guigmi with an SNDi of 1.25, which is very well-connected. See trends for these cities: N'guigmi, Maïné-Soroa
The level of street-network sprawl in the aggregate network in Diffa fell steadily. To get a sense of how the aggregate street network has changed in Diffa, we can consider three of its most populous cities: Diffa, Maïné-Soroa and N'guigmi. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in the aggregate network in Diffa peaked in 1976-1990. The level of street-network sprawl in the aggregate network in Maïné-Soroa was at its lowest in 1991-2005. The level of street-network sprawl in the aggregate network in N'guigmi was at its lowest in 1976-1990.
To date, Diffa is the 7th-most disconnected out of the 8 regions in Niger. Its position in the ranks since 1975 has risen; relative to other regions in Niger, the street network in Diffa has become more disconnected. Diffa ranked 8th in 1975, 8th in 1976-1990, 7th in 1991-2005 and 7th in 2006-2020.