Ma'rib: 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 Ma'rib, Yemen on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Ma'rib as of 2014, the overall level of street-network sprawl is 4.55, which is highly disconnected.
Trends in street network construction: The SNDis of street construction for the respective time periods are nan, 2.3, 3.51 and 4.43. Data was not available in 1975.
Quantity of street network construction: The street network in Ma'rib spans a total of 1107 kilometers. It is dominated by roads constructed in 2001-2014. These roads have an SNDi of 4.43, 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 nan, 4.68, 4.2 and 4.55. Data was not available in 1975.
The level of street-network sprawl in new development in Ma'rib followed a zig-zag trend. To get a sense of how street development has changed in Ma'rib, we can consider two of its most populous cities: Harib and Marib. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in new development in Harib followed a zig-zag trend. The level of street-network sprawl in new development in Marib followed a zig-zag trend.
How do development practices in Ma'rib fare in comparison to others in Yemen? Most recently in 2001-2014, street construction in Ma'rib was the 8th-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 Ma'rib has become more disconnected. Ma'rib ranked 10th in 1976-1990, 10th in 1991-2000 and 8th in 2001-2014. There was no ranking in 1975 due to unavailable data.
As of 2014, the city with the most disconnected street network in Ma'rib is Marib with an SNDi of 2.93, which is in the 40th to 60th percentile of disconnectedness. Conversely, the most connected city is Harib with an SNDi of 1.03, which is relatively well-connected. See trends for these cities: Harib, Marib
The level of street-network sprawl in the aggregate network in Ma'rib followed a zig-zag trend. To get a sense of how the aggregate street network has changed in Ma'rib, we can consider two of its most populous cities: Harib and Marib. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in the aggregate network in Harib followed a zig-zag trend. The level of street-network sprawl in the aggregate network in Marib followed a zig-zag trend.
To date, Ma'rib is the 7th-most disconnected out of the 16 regions in Yemen. Its position in the ranks since 1975 has risen; relative to other regions in Yemen, the street network in Ma'rib has become more disconnected. Ma'rib ranked 10th in 1976-1990, 11th in 1991-2000 and 7th in 2001-2014. There was no ranking in 1975 due to unavailable data.