Sumatera Selatan: region in Indonesia
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 Sumatera Selatan, Indonesia on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Sumatera Selatan as of 2014, the overall level of street-network sprawl is 6.87, which is highly disconnected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 7.1, nan, 6.66 and 6.78. Data was not available in 1976-1990.
Quantity of street network construction: The street network in Sumatera Selatan spans a total of 30560 kilometers. It is dominated by roads constructed prior to 1975. These roads have an SNDi of 7.1, 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 7.1, 7.1, 6.96 and 6.87. Overall, the SNDi of the aggregate street network has fallen: the street network in Sumatera Selatan has become more connected. This decrease has quickened: between 1975 and 1976-1990, SNDi fell by 0.0 points, but between 1991-2000 and 2001-2014, it fell by just 0.08.
The level of street-network sprawl in new development in Sumatera Selatan followed a zig-zag trend with an overall decrease. To get a sense of how street development has changed in Sumatera Selatan, we can consider three of its most populous cities: Palembang, Lubuklinggau and Lahat. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in new development in Palembang followed a zig-zag trend with an overall increase. The level of street-network sprawl in new development in Lubuklinggau followed a zig-zag trend. The level of street-network sprawl in new development in Lahat followed a zig-zag trend with an overall increase.
How do development practices in Sumatera Selatan fare in comparison to others in Indonesia? Most recently in 2001-2014, street construction in Sumatera Selatan was the 12th-most disconnected out of the 32 regions in Indonesia. Its position in the ranks since 1975 has not changed. Sumatera Selatan ranked 2nd in 1975, 12th in 1991-2000 and 12th in 2001-2014. There was no ranking in 1976-1990 due to unavailable data.
As of 2014, the city with the most disconnected street network in Sumatera Selatan is Palembang with an SNDi of 5.13, which is highly disconnected. Conversely, the most connected city is Pagar Alam with an SNDi of 1.7, which is relatively well-connected. See trends for these cities: Pagar Alam, Palembang
The level of street-network sprawl in the aggregate network in Sumatera Selatan fell steadily. To get a sense of how the aggregate street network has changed in Sumatera Selatan, we can consider three of its most populous cities: Palembang, Lubuklinggau and Lahat. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in the aggregate network in Palembang followed a zig-zag trend with an overall increase. The level of street-network sprawl in the aggregate network in Lubuklinggau rose steadily. The level of street-network sprawl in the aggregate network in Lahat followed a zig-zag trend with an overall decrease.
To date, Sumatera Selatan is the 4th-most disconnected out of the 32 regions in Indonesia. Its position in the ranks since 1975 has fallen; relative to other regions in Indonesia, the street network in Sumatera Selatan has become more connected. Sumatera Selatan ranked 2nd in 1975, 2nd in 1976-1990, 3rd in 1991-2000 and 4th in 2001-2014.