Mahera: city in Northern, Sierra Leone
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 Mahera, Sierra Leone on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Mahera as of 2014, the overall level of street-network sprawl is 3.66, which is highly disconnected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 3.37, 4.15, 5.74 and 6.51. In each period, new street development in Mahera steadily grows more disconnected than in the last. This increase has slowed: between 1975 and 1976-1990, SNDi rose by 0.78 points, but between 1991-2000 and 2001-2014, it rose by just 0.77.
Quantity of street network construction: The street network in Mahera spans a total of 98 kilometers. It is dominated by roads constructed prior to 1975. These roads have an SNDi of 3.37, 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 3.37, 3.54, 3.57 and 3.66. Overall, the SNDi of the aggregate street network has risen: the street network in Mahera has become more disconnected. This increase has slowed: between 1975 and 1976-1990, SNDi rose by 0.17 points, but between 1991-2000 and 2001-2014, it rose by just 0.09.
Mahera and Northern do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Mahera rose steadily, while the SNDi of street constructions in Northern peaked in 1976-1990.
How do development practices in Mahera fare in comparison to others in Northern? Most recently in 2001-2014, street construction in Mahera was the 1st-most disconnected out of the 3 cities in Northern. Its position in the ranks since 1975 has not changed. Mahera ranked 1st in 1975, 2nd in 1976-1990, 2nd in 1991-2000 and 1st in 2001-2014.
Mahera and Sierra Leone do not follow the same trend in the disconnectivity of their street network constructions. The SNDi in Mahera rose steadily, while the SNDi of street constructions in Sierra Leone followed a zig-zag trend with an overall increase.
How do development practices in Mahera fare in comparison to others in Sierra Leone? Most recently in 2001-2014, street construction in Mahera was the 3rd-most disconnected out of the 9 cities in Sierra Leone. Its position in the ranks since 1975 has not changed. Mahera ranked 3rd in 1975, 5th in 1976-1990, 5th in 1991-2000 and 3rd in 2001-2014.
Mahera and Northern follow the same trend in the disconnectivity of their aggregate street networks. The SNDi for both of these rose steadily.
To date, Mahera is the 2nd-most disconnected out of the 3 cities in Northern. Its position in the ranks since 1975 has fallen; relative to other cities in Northern, the street network in Mahera has become more connected. Mahera ranked 1st in 1975, 1st in 1976-1990, 2nd in 1991-2000 and 2nd in 2001-2014.
Mahera and Sierra Leone follow the same trend in the disconnectivity of their aggregate street networks. The SNDi for both of these rose steadily.
To date, Mahera is the 6th-most disconnected out of the 9 cities in Sierra Leone. Its position in the ranks since 1975 has fallen; relative to other cities in Sierra Leone, the street network in Mahera has become more connected. Mahera ranked 3rd in 1975, 4th in 1976-1990, 5th in 1991-2000 and 6th in 2001-2014.
As of 2015, Mahera had a built-up area of 5.5 square kilometers, and a population of 54947 people.
These are some other cities with approximately the same population: