Amapá: region in Brazil
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 Amapá, Brazil on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Amapá as of 2014, the overall level of street-network sprawl is 3.88, which is highly disconnected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 3.72, nan, 3.97 and 4.24. Data was not available in 1976-1990.
Quantity of street network construction: The street network in Amapá spans a total of 3366 kilometers. It is dominated by roads constructed prior to 1975. These roads have an SNDi of 3.72, 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 3.72, 3.72, 3.87 and 3.88. Overall, the SNDi of the aggregate street network has risen: the street network in Amapá has become more disconnected.
The level of street-network sprawl in new development in Amapá followed a zig-zag trend with an overall increase. To get a sense of how street development has changed in Amapá, we can consider two of its most populous cities: Macapá and Santana. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in new development in Macapá followed a zig-zag trend with an overall increase. The level of street-network sprawl in new development in Santana followed a zig-zag trend with an overall increase.
How do development practices in Amapá fare in comparison to others in Brazil? Most recently in 2001-2014, street construction in Amapá was the 8th-most disconnected out of the 29 regions in Brazil. Its position in the ranks since 1975 has fallen; relative to other regions in Brazil, street construction in Amapá has become more connected. Amapá ranked 2nd in 1975, 6th in 1991-2000 and 8th 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 Amapá is Santana with an SNDi of 2.42, which is in the 40th to 60th percentile of disconnectedness. Conversely, the most connected city is Macapá with an SNDi of 1.98, which is relatively well-connected. See trends for these cities: Macapá, Santana
The level of street-network sprawl in the aggregate network in Amapá rose steadily. To get a sense of how the aggregate street network has changed in Amapá, we can consider two of its most populous cities: Macapá and Santana. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in the aggregate network in Macapá rose steadily. The level of street-network sprawl in the aggregate network in Santana rose steadily.
To date, Amapá is the 3rd-most disconnected out of the 29 regions in Brazil. Its position in the ranks since 1975 has fallen; relative to other regions in Brazil, the street network in Amapá has become more connected. Amapá ranked 2nd in 1975, 2nd in 1976-1990, 2nd in 1991-2000 and 3rd in 2001-2014.