Sangha: region in Republic of Congo
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 Sangha, Republic of Congo on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Sangha as of 2014, the overall level of street-network sprawl is 5.35, which is highly disconnected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 4.53, 4.39, 4.92 and 7.48. The disconnectivity of new streets constructed in Sangha fell, then rose. In 1976-1990, new street layouts were the most connected.
Quantity of street network construction: The street network in Sangha spans a total of 1433 kilometers. It is dominated by roads constructed in 2001-2014. These roads have an SNDi of 7.48, 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 4.53, 4.48, 4.69 and 5.35. The SNDi of the aggregate street network in fell at first, but Sangha has worsened in disconnectivity since 1990.
The level of street-network sprawl in new development in Sangha was at its lowest in 1976-1990. To get a sense of how street development has changed in Sangha, we can consider one of its most populous cities: Ouésso. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in new development in Ouésso followed a zig-zag trend.
How do development practices in Sangha fare in comparison to others in Republic of Congo? Most recently in 2001-2014, street construction in Sangha was the 1st-most disconnected out of the 8 regions in Republic of Congo. Its position in the ranks since 1975 has not changed. Sangha ranked 1st in 1975, 1st in 1976-1990, 2nd in 1991-2000 and 1st in 2001-2014.
As of 2014, the city with the most disconnected street network in Sangha is Ouésso with an SNDi of 0.59, which is relatively well-connected. Conversely, the most connected city is Ouésso with an SNDi of 0.59, which is relatively well-connected. See trends for these cities: Ouésso, Ouésso
The level of street-network sprawl in the aggregate network in Sangha was at its lowest in 1976-1990. To get a sense of how the aggregate street network has changed in Sangha, we can consider one of its most populous cities: Ouésso. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in the aggregate network in Ouésso rose steadily.
To date, Sangha is the 1st-most disconnected out of the 8 regions in Republic of Congo. Its position in the ranks since 1975 has not changed. Sangha ranked 1st in 1975, 1st in 1976-1990, 1st in 1991-2000 and 1st in 2001-2014.