Lunda Sul: 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 Lunda Sul, Angola on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Lunda Sul as of 2014, the overall level of street-network sprawl is 2.04, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 1.35, 1.95, 2.96 and 1.89. Street construction in Lunda Sul increased in disconnectivity initially but has since improved. The streets constructed in 1991-2000 were the most disconnected.
Quantity of street network construction: The street network in Lunda Sul spans a total of 3528 kilometers. It is dominated by roads constructed in 2001-2014. These roads have an SNDi of 1.89, 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 1.35, 1.77, 2.25 and 2.04. The aggregate street network in Lunda Sul increased in disconnectivity initially,but the trend has turned around after 2000.
The level of street-network sprawl in new development in Lunda Sul peaked in 1991-2000. To get a sense of how street development has changed in Lunda Sul, we can consider one of its most populous cities: Saurimo. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in new development in Saurimo followed a zig-zag trend with an overall decrease.
How do development practices in Lunda Sul fare in comparison to others in Angola? Most recently in 2001-2014, street construction in Lunda Sul was the 17th-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 Lunda Sul has become more connected. Lunda Sul ranked 15th in 1975, 14th in 1976-1990, 14th in 1991-2000 and 17th in 2001-2014.
As of 2014, the city with the most disconnected street network in Lunda Sul is Saurimo with an SNDi of 0.46, which is relatively well-connected. Conversely, the most connected city is Saurimo with an SNDi of 0.46, which is relatively well-connected. See trends for these cities: Saurimo, Saurimo
The level of street-network sprawl in the aggregate network in Lunda Sul peaked in 1991-2000. To get a sense of how the aggregate street network has changed in Lunda Sul, we can consider one of its most populous cities: Saurimo. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in the aggregate network in Saurimo peaked in 1976-1990.
To date, Lunda Sul is the 17th-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 Lunda Sul has become more connected. Lunda Sul ranked 15th in 1975, 16th in 1976-1990, 15th in 1991-2000 and 17th in 2001-2014.