Kano: region in Nigeria
What exactly constitutes the spatial extent of the city? For these aggregations, we used the Global Human Settlement Layer Urban Center Database (GHS-UCDB) to define the boundaries of the city. These cities -- or urban centers -- cover areas that are densely populated and built-up, and so may extend beyond the spatial borders of these cities that we may be familiar with. The GHS area is shaded in blue.
View Kano, Nigeria on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Kano as of 2014, the overall level of street-network sprawl is 1.14, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 0.72, 1.66, 1.31 and 1.19. Street construction in Kano increased in disconnectivity initially but has since improved. The streets constructed in 1976-1990 were the most disconnected.
Quantity of street network construction: The street network in Kano spans a total of 26342 kilometers. It is dominated by roads constructed in 2001-2014. These roads have an SNDi of 1.19, which is relatively well-connected.
Effect on the aggregate network: New construction in each period adds to the total stock of streets, but does not change streets that have already been built. Therefore, it has a limited effect on the street network as a whole. The SNDis of the aggregate street network in the respective time periods are 0.72, 1.0, 1.05 and 1.14. Overall, the SNDi of the aggregate street network has risen: the street network in Kano has become more disconnected. This increase has slowed: between 1975 and 1976-1990, SNDi rose by 0.28 points, but between 1991-2000 and 2001-2014, it rose by just 0.09.
The level of street-network sprawl in new development in Kano peaked in 1976-1990. To get a sense of how street development has changed in Kano, we can consider three of its most populous cities: Kano, Wudil and Dambarta. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in new development in Kano followed a zig-zag trend with an overall increase. The level of street-network sprawl in new development in Wudil followed a zig-zag trend with an overall increase. The level of street-network sprawl in new development in Dambarta followed a zig-zag trend with an overall decrease.
How do development practices in Kano fare in comparison to others in Nigeria? Most recently in 2001-2014, street construction in Kano was the 37th-most disconnected out of the 37 regions in Nigeria. Its position in the ranks since 1975 has fallen; relative to other regions in Nigeria, street construction in Kano has become more connected. Kano ranked 35th in 1975, 30th in 1976-1990, 37th in 1991-2000 and 37th in 2001-2014.
As of 2014, the city with the most disconnected street network in Kano is Wudil with an SNDi of 4.42, which is highly disconnected. Conversely, the most connected city is Bagwai with an SNDi of -0.9, which is very well-connected. See trends for these cities: Bagwai, Wudil
The level of street-network sprawl in the aggregate network in Kano rose steadily. To get a sense of how the aggregate street network has changed in Kano, we can consider three of its most populous cities: Kano, Wudil and Dambarta. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in the aggregate network in Kano followed a zig-zag trend with an overall increase. The level of street-network sprawl in the aggregate network in Wudil rose steadily. The level of street-network sprawl in the aggregate network in Dambarta followed a zig-zag trend with an overall decrease.
To date, Kano is the 37th-most disconnected out of the 37 regions in Nigeria. Its position in the ranks since 1975 has fallen; relative to other regions in Nigeria, the street network in Kano has become more connected. Kano ranked 35th in 1975, 37th in 1976-1990, 37th in 1991-2000 and 37th in 2001-2014.