Accra: city in Greater Accra, Ghana
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 Accra, Ghana on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Accra as of 2014, the overall level of street-network sprawl is 3.86, which is highly disconnected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 3.38, 3.91, 3.75 and 4.45. Disconnectivity in street construction in Accra 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 Accra spans a total of 9422 kilometers. The period with the greatest volume of street construction was 1975. These roads have an SNDi of 3.38, 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 3.38, 3.62, 3.63 and 3.86. Overall, the SNDi of the aggregate street network has risen: the street network in Accra has become more disconnected. This increase has slowed: between 1975 and 1976-1990, SNDi rose by 0.24 points, but between 1991-2000 and 2001-2014, it rose by just 0.22.
Accra and Greater Accra do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Accra followed a zig-zag trend with an overall increase, while the SNDi of street constructions in Greater Accra rose steadily.
How do development practices in Accra fare in comparison to others in Greater Accra? Most recently in 2001-2014, street construction in Accra was the 2nd-most disconnected out of the 2 cities in Greater Accra. Its position in the ranks since 1975 has not changed. Accra ranked 2nd in 1975, 1st in 1976-1990, 2nd in 1991-2000 and 2nd in 2001-2014.
Accra and Ghana do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Accra followed a zig-zag trend with an overall increase, while the SNDi of street constructions in Ghana rose steadily.
How do development practices in Accra fare in comparison to others in Ghana? Most recently in 2001-2014, street construction in Accra was the 24th-most disconnected out of the 51 cities in Ghana. Its position in the ranks since 1975 has fallen; relative to other cities in Ghana, street construction in Accra has become more connected. Accra ranked 12th in 1975, 15th in 1976-1990, 23rd in 1991-2000 and 24th in 2001-2014.
Accra and Greater Accra follow the same trend in the disconnectivity of their aggregate street networks. The SNDi for both of these rose steadily.
To date, Accra is the 2nd-most disconnected out of the 2 cities in Greater Accra. Its position in the ranks since 1975 has not changed. Accra ranked 2nd in 1975, 1st in 1976-1990, 2nd in 1991-2000 and 2nd in 2001-2014.
Accra and Ghana follow the same trend in the disconnectivity of their aggregate street networks. The SNDi for both of these rose steadily.
To date, Accra is the 22nd-most disconnected out of the 51 cities in Ghana. Its position in the ranks since 1975 has fallen; relative to other cities in Ghana, the street network in Accra has become more connected. Accra ranked 12th in 1975, 13th in 1976-1990, 17th in 1991-2000 and 22nd in 2001-2014.
As of 2015, Accra had a built-up area of 494.9 square kilometers, and a population of 4412617 people.
These are some other cities with approximately the same population: