Naâma: region in Algeria
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 Naâma, Algeria on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Naâma as of 2014, the overall level of street-network sprawl is 0.98, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 2.23, 0.43, 1.77 and 1.56. Disconnectivity in street construction in Naâma follows a zig-zag trend. In 1976-1990, street construction was most disconnected, while construction was most connected in 1975.
Quantity of street network construction: The street network in Naâma spans a total of 1415 kilometers. It is dominated by roads constructed in 2001-2014. These roads have an SNDi of 1.56, 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 2.23, 0.69, 0.86 and 0.98. The SNDi of the aggregate street network in fell at first, but Naâma has worsened in disconnectivity since 1990.
The level of street-network sprawl in new development in Naâma followed a zig-zag trend with an overall decrease. To get a sense of how street development has changed in Naâma, we can consider two of its most populous cities: Mecheria and Ain Sefra. Out of the two cities, Mecheria does not follow the same trend as the region. The level of street-network sprawl in new development in Mecheria was at its lowest in 1976-1990.
How do development practices in Naâma fare in comparison to others in Algeria? Most recently in 2001-2014, street construction in Naâma was the 36th-most disconnected out of the 46 regions in Algeria. Its position in the ranks since 1975 has fallen; relative to other regions in Algeria, street construction in Naâma has become more connected. Naâma ranked 22nd in 1975, 45th in 1976-1990, 30th in 1991-2000 and 36th in 2001-2014.
As of 2014, the city with the most disconnected street network in Naâma is Ain Sefra with an SNDi of 1.12, which is relatively well-connected. Conversely, the most connected city is Mecheria with an SNDi of 0.23, which is very well-connected. See trends for these cities: Mecheria, Ain Sefra
The level of street-network sprawl in the aggregate network in Naâma was at its lowest in 1976-1990. To get a sense of how the aggregate street network has changed in Naâma, we can consider two of its most populous cities: Mecheria and Ain Sefra. Disconnectivity in the most populous cities in Naâma follow the same region trend.
To date, Naâma is the 42nd-most disconnected out of the 46 regions in Algeria. Its position in the ranks since 1975 has fallen; relative to other regions in Algeria, the street network in Naâma has become more connected. Naâma ranked 22nd in 1975, 45th in 1976-1990, 43rd in 1991-2000 and 42nd in 2001-2014.