Amanat Al Asimah: region in Yemen
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 Amanat Al Asimah, Yemen on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Amanat Al Asimah as of 2014, the overall level of street-network sprawl is 1.3, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 0.81, 1.07, 2.83 and 2.98. In each period, new street development in Amanat Al Asimah steadily grows more disconnected than in the last. This increase has slowed: between 1975 and 1976-1990, SNDi rose by 0.26 points, but between 1991-2000 and 2001-2014, it rose by just 0.15.
Quantity of street network construction: The street network in Amanat Al Asimah spans a total of 2001 kilometers. It is dominated by roads constructed in 1976-1990. These roads have an SNDi of 1.07, 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 0.81, 1.03, 1.11 and 1.3. Overall, the SNDi of the aggregate street network has risen: the street network in Amanat Al Asimah has become more disconnected. This increase has slowed: between 1975 and 1976-1990, SNDi rose by 0.21 points, but between 1991-2000 and 2001-2014, it rose by just 0.19.
The level of street-network sprawl in new development in Amanat Al Asimah rose steadily. To get a sense of how street development has changed in Amanat Al Asimah, we can consider one of its most populous cities: Sana'a. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in new development in Sana'a peaked in 1991-2000.
How do development practices in Amanat Al Asimah fare in comparison to others in Yemen? Most recently in 2001-2014, street construction in Amanat Al Asimah was the 13th-most disconnected out of the 16 regions in Yemen. Its position in the ranks since 1975 has risen; relative to other regions in Yemen, street construction in Amanat Al Asimah has become more disconnected. Amanat Al Asimah ranked 14th in 1975, 12th in 1976-1990, 14th in 1991-2000 and 13th in 2001-2014.
As of 2014, the city with the most disconnected street network in Amanat Al Asimah is Sana'a with an SNDi of 1.33, which is relatively well-connected. Conversely, the most connected city is Sana'a with an SNDi of 1.33, which is relatively well-connected. See trends for these cities: Sana'a, Sana'a
The level of street-network sprawl in the aggregate network in Amanat Al Asimah rose steadily. To get a sense of how the aggregate street network has changed in Amanat Al Asimah, we can consider one of its most populous cities: Sana'a. Disconnectivity in the most populous cities in Amanat Al Asimah follow the same region trend.
To date, Amanat Al Asimah is the 16th-most disconnected out of the 16 regions in Yemen. Its position in the ranks since 1975 has fallen; relative to other regions in Yemen, the street network in Amanat Al Asimah has become more connected. Amanat Al Asimah ranked 14th in 1975, 15th in 1976-1990, 16th in 1991-2000 and 16th in 2001-2014.