Luanda: region in Angola
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 Luanda, Angola on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Luanda as of 2014, the overall level of street-network sprawl is 1.6, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 2.12, 1.77, 2.08 and 1.23. Disconnectivity in street construction in Luanda follows a zig-zag trend. In 2001-2014, street construction was most disconnected, while construction was most connected in 1975.
Quantity of street network construction: The street network in Luanda spans a total of 12428 kilometers. It is dominated by roads constructed in 2001-2014. These roads have an SNDi of 1.23, 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 2.12, 2.06, 2.06 and 1.6. Disconnectivity in Luanda's street network follows a zig-zag trend. In 2001-2014, the region was most disconnected; while it was most connected in 1975.
The level of street-network sprawl in new development in Luanda followed a zig-zag trend with an overall decrease. To get a sense of how street development has changed in Luanda, we can consider two of its most populous cities: Luanda and Panguila. Out of the two cities, Panguila does not follow the same trend as the region. The level of street-network sprawl in new development in Panguila followed a zig-zag trend.
How do development practices in Luanda fare in comparison to others in Angola? Most recently in 2001-2014, street construction in Luanda was the 18th-most disconnected out of the 18 regions in Angola. Its position in the ranks since 1975 has fallen; relative to other regions in Angola, street construction in Luanda has become more connected. Luanda ranked 12th in 1975, 15th in 1976-1990, 17th in 1991-2000 and 18th in 2001-2014.
As of 2014, the city with the most disconnected street network in Luanda is Luanda with an SNDi of 1.6, which is relatively well-connected. Conversely, the most connected city is Panguila with an SNDi of 1.22, which is relatively well-connected. See trends for these cities: Panguila, Luanda
The level of street-network sprawl in the aggregate network in Luanda followed a zig-zag trend with an overall decrease. To get a sense of how the aggregate street network has changed in Luanda, we can consider two of its most populous cities: Luanda and Panguila. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in the aggregate network in Luanda fell steadily. The level of street-network sprawl in the aggregate network in Panguila followed a zig-zag trend.
To date, Luanda is the 18th-most disconnected out of the 18 regions in Angola. Its position in the ranks since 1975 has fallen; relative to other regions in Angola, the street network in Luanda has become more connected. Luanda ranked 12th in 1975, 15th in 1976-1990, 16th in 1991-2000 and 18th in 2001-2014.