Arica y Parinacota: region in Chile
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 Arica y Parinacota, Chile on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Arica y Parinacota as of 2014, the overall level of street-network sprawl is 1.81, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 1.45, 2.23, 2.25 and 2.26. In each period, new street development in Arica y Parinacota steadily grows more disconnected than in the last. This increase has slowed: between 1975 and 1976-1990, SNDi rose by 0.78 points, but between 1991-2000 and 2001-2014, it rose by just 0.0.
Quantity of street network construction: The street network in Arica y Parinacota spans a total of 1370 kilometers. It is dominated by roads constructed prior to 1975. These roads have an SNDi of 1.45, 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 1.45, 1.61, 1.7 and 1.81. Overall, the SNDi of the aggregate street network has risen: the street network in Arica y Parinacota has become more disconnected. This increase has slowed: between 1975 and 1976-1990, SNDi rose by 0.17 points, but between 1991-2000 and 2001-2014, it rose by just 0.12.
The level of street-network sprawl in new development in Arica y Parinacota rose steadily. To get a sense of how street development has changed in Arica y Parinacota, we can consider one of its most populous cities: Arica. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in new development in Arica peaked in 1976-1990.
How do development practices in Arica y Parinacota fare in comparison to others in Chile? Most recently in 2001-2014, street construction in Arica y Parinacota was the 13th-most disconnected out of the 16 regions in Chile. Its position in the ranks since 1975 has risen; relative to other regions in Chile, street construction in Arica y Parinacota has become more disconnected. Arica y Parinacota ranked 16th in 1975, 13th in 1976-1990, 13th in 1991-2000 and 13th in 2001-2014.
As of 2014, the city with the most disconnected street network in Arica y Parinacota is Arica with an SNDi of 0.71, which is relatively well-connected. Conversely, the most connected city is Arica with an SNDi of 0.71, which is relatively well-connected. See trends for these cities: Arica, Arica
The level of street-network sprawl in the aggregate network in Arica y Parinacota rose steadily. To get a sense of how the aggregate street network has changed in Arica y Parinacota, we can consider one of its most populous cities: Arica. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in the aggregate network in Arica peaked in 1976-1990.
To date, Arica y Parinacota is the 14th-most disconnected out of the 16 regions in Chile. Its position in the ranks since 1975 has risen; relative to other regions in Chile, the street network in Arica y Parinacota has become more disconnected. Arica y Parinacota ranked 16th in 1975, 15th in 1976-1990, 15th in 1991-2000 and 14th in 2001-2014.