Ogharefe: 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 Ogharefe, Nigeria on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Ogharefe as of 2014, the overall level of street-network sprawl is 1.53, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 0.68, 1.15, 2.84 and 3.58. In each period, new street development in Ogharefe steadily grows more disconnected than in the last.
Quantity of street network construction: The street network in Ogharefe spans a total of 102 kilometers. It is dominated by roads constructed in 1976-1990. These roads have an SNDi of 1.15, 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 0.68, 1.07, 1.12 and 1.53. Overall, the SNDi of the aggregate street network has risen: the street network in Ogharefe has become more disconnected.
Ogharefe and Delta do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Ogharefe rose steadily, while the SNDi of street constructions in Delta followed a zig-zag trend with an overall increase.
How do development practices in Ogharefe fare in comparison to others in Delta? Most recently in 2001-2014, street construction in Ogharefe was the 12th-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 Ogharefe has become more disconnected. Ogharefe ranked 14th in 1975, 14th in 1976-1990, 11th in 1991-2000 and 12th in 2001-2014.
Ogharefe and Nigeria do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Ogharefe rose steadily, while the SNDi of street constructions in Nigeria peaked in 1991-2000.
How do development practices in Ogharefe fare in comparison to others in Nigeria? Most recently in 2001-2014, street construction in Ogharefe was the 145th-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 Ogharefe has become more disconnected. Ogharefe ranked 163rd in 1975, 223rd in 1976-1990, 133rd in 1991-2000 and 145th in 2001-2014.
Ogharefe and Delta do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Ogharefe rose steadily, while the SNDi of street constructions in Delta followed a zig-zag trend with an overall increase.
To date, Ogharefe is the 14th-most disconnected out of the 16 cities in Delta. Its position in the ranks since 1975 has not changed. Ogharefe ranked 14th in 1975, 15th in 1976-1990, 15th in 1991-2000 and 14th in 2001-2014.
Ogharefe and Nigeria follow the same trend in the disconnectivity of their aggregate street networks. The SNDi for both of these rose steadily.
To date, Ogharefe is the 233rd-most disconnected out of the 411 cities in Nigeria. Its position in the ranks since 1975 has fallen; relative to other cities in Nigeria, the street network in Ogharefe has become more connected. Ogharefe ranked 163rd in 1975, 217th in 1976-1990, 226th in 1991-2000 and 233rd in 2001-2014.
As of 2015, Ogharefe had a built-up area of 5.75 square kilometers, and a population of 86410 people.
These are some other cities with approximately the same population: