Sapele: city in Delta, 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 Sapele, Nigeria on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Sapele as of 2014, the overall level of street-network sprawl is 3.52, which is highly disconnected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 1.28, 3.47, 3.02 and 5.88. Disconnectivity in street construction in Sapele follows a zig-zag trend. In 1975, street construction was most disconnected, while construction was most connected in 2001-2014.
Quantity of street network construction: The street network in Sapele spans a total of 242 kilometers. It is dominated by roads constructed in 1976-1990. These roads have an SNDi of 3.47, which is highly disconnected.
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 1.28, 3.3, 3.27 and 3.52. Disconnectivity in Sapele's street network follows a zig-zag trend. In 1975, the city was most disconnected; while it was most connected in 2001-2014.
Sapele and Delta follow the same trend in the disconnectivity of their street network constructions. The SNDi for both of these followed a zig-zag trend with an overall increase.
How do development practices in Sapele fare in comparison to others in Delta? Most recently in 2001-2014, street construction in Sapele was the 6th-most disconnected out of the 16 cities in Delta. Its position in the ranks since 1975 has risen; relative to other cities in Delta, street construction in Sapele has become more disconnected. Sapele ranked 11th in 1975, 6th in 1976-1990, 10th in 1991-2000 and 6th in 2001-2014.
Sapele and Nigeria do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Sapele followed a zig-zag trend with an overall increase, while the SNDi of street constructions in Nigeria peaked in 1991-2000.
How do development practices in Sapele fare in comparison to others in Nigeria? Most recently in 2001-2014, street construction in Sapele was the 44th-most disconnected out of the 411 cities in Nigeria. Its position in the ranks since 1975 has risen; relative to other cities in Nigeria, street construction in Sapele has become more disconnected. Sapele ranked 127th in 1975, 75th in 1976-1990, 126th in 1991-2000 and 44th in 2001-2014.
Sapele and Delta follow the same trend in the disconnectivity of their aggregate street networks. The SNDi for both of these followed a zig-zag trend with an overall increase.
To date, Sapele is the 9th-most disconnected out of the 16 cities in Delta. Its position in the ranks since 1975 has risen; relative to other cities in Delta, the street network in Sapele has become more disconnected. Sapele ranked 11th in 1975, 6th in 1976-1990, 7th in 1991-2000 and 9th in 2001-2014.
Sapele and Nigeria do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Sapele followed a zig-zag trend with an overall increase, while the SNDi of street constructions in Nigeria rose steadily.
To date, Sapele is the 91st-most disconnected out of the 411 cities in Nigeria. Its position in the ranks since 1975 has risen; relative to other cities in Nigeria, the street network in Sapele has become more disconnected. Sapele ranked 127th in 1975, 60th in 1976-1990, 75th in 1991-2000 and 91st in 2001-2014.
As of 2015, Sapele had a built-up area of 15.16 square kilometers, and a population of 237393 people.
These are some other cities with approximately the same population: