Port Harcourt: city in Rivers, 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 Port Harcourt, Nigeria on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Port Harcourt as of 2014, the overall level of street-network sprawl is 5.47, which is highly disconnected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 4.05, 5.71, 6.6 and 6.69. In each period, new street development in Port Harcourt steadily grows more disconnected than in the last. This increase has slowed: between 1975 and 1976-1990, SNDi rose by 1.66 points, but between 1991-2000 and 2001-2014, it rose by just 0.09.
Quantity of street network construction: The street network in Port Harcourt spans a total of 1242 kilometers. It is dominated by roads constructed in 1976-1990. These roads have an SNDi of 5.71, 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 4.05, 5.2, 5.36 and 5.47. Overall, the SNDi of the aggregate street network has risen: the street network in Port Harcourt has become more disconnected. This increase has slowed: between 1975 and 1976-1990, SNDi rose by 1.15 points, but between 1991-2000 and 2001-2014, it rose by just 0.12.
Port Harcourt and Rivers follow the same trend in the disconnectivity of their street network constructions. The SNDi for both of these rose steadily.
How do development practices in Port Harcourt fare in comparison to others in Rivers? Most recently in 2001-2014, street construction in Port Harcourt was the 3rd-most disconnected out of the 15 cities in Rivers. Its position in the ranks since 1975 has risen; relative to other cities in Rivers, street construction in Port Harcourt has become more disconnected. Port Harcourt ranked 5th in 1975, 2nd in 1976-1990, 4th in 1991-2000 and 3rd in 2001-2014.
Port Harcourt and Nigeria do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Port Harcourt rose steadily, while the SNDi of street constructions in Nigeria peaked in 1991-2000.
How do development practices in Port Harcourt fare in comparison to others in Nigeria? Most recently in 2001-2014, street construction in Port Harcourt was the 20th-most disconnected out of the 411 cities in Nigeria. Its position in the ranks since 1975 has not changed. Port Harcourt ranked 20th in 1975, 6th in 1976-1990, 13th in 1991-2000 and 20th in 2001-2014.
Port Harcourt and Rivers follow the same trend in the disconnectivity of their aggregate street networks. The SNDi for both of these rose steadily.
To date, Port Harcourt is the 4th-most disconnected out of the 15 cities in Rivers. Its position in the ranks since 1975 has risen; relative to other cities in Rivers, the street network in Port Harcourt has become more disconnected. Port Harcourt ranked 5th in 1975, 1st in 1976-1990, 2nd in 1991-2000 and 4th in 2001-2014.
Port Harcourt and Nigeria follow the same trend in the disconnectivity of their aggregate street networks. The SNDi for both of these rose steadily.
To date, Port Harcourt is the 12th-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 Port Harcourt has become more disconnected. Port Harcourt ranked 20th in 1975, 5th in 1976-1990, 6th in 1991-2000 and 12th in 2001-2014.
As of 2015, Port Harcourt had a built-up area of 32.98 square kilometers, and a population of 1159890 people.
These are some other cities with approximately the same population: