Al Iskandariyah: region in Egypt
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 Al Iskandariyah, Egypt on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Al Iskandariyah as of 2014, the overall level of street-network sprawl is 1.88, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 1.84, 1.0, 3.85 and 4.97. The disconnectivity of new streets constructed in Al Iskandariyah fell, then rose. In 1976-1990, new street layouts were the most connected.
Quantity of street network construction: The street network in Al Iskandariyah spans a total of 3974 kilometers. It is dominated by roads constructed in 1976-1990. These roads have an SNDi of 1.0, 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 1.84, 1.23, 1.42 and 1.88. The SNDi of the aggregate street network in fell at first, but Al Iskandariyah has worsened in disconnectivity since 1990.
The level of street-network sprawl in new development in Al Iskandariyah was at its lowest in 1976-1990. To get a sense of how street development has changed in Al Iskandariyah, we can consider one of its most populous cities: Alexandria. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in new development in Alexandria peaked in 1991-2000.
How do development practices in Al Iskandariyah fare in comparison to others in Egypt? Most recently in 2001-2014, street construction in Al Iskandariyah was the 8th-most disconnected out of the 25 regions in Egypt. Its position in the ranks since 1975 has risen; relative to other regions in Egypt, street construction in Al Iskandariyah has become more disconnected. Al Iskandariyah ranked 22nd in 1975, 24th in 1976-1990, 19th in 1991-2000 and 8th in 2001-2014.
As of 2014, the city with the most disconnected street network in Al Iskandariyah is Alexandria with an SNDi of 1.76, which is relatively well-connected. Conversely, the most connected city is Alexandria with an SNDi of 1.76, which is relatively well-connected. See trends for these cities: Alexandria, Alexandria
The level of street-network sprawl in the aggregate network in Al Iskandariyah was at its lowest in 1976-1990. To get a sense of how the aggregate street network has changed in Al Iskandariyah, we can consider one of its most populous cities: Alexandria. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in the aggregate network in Alexandria rose steadily.
To date, Al Iskandariyah is the 23rd-most disconnected out of the 25 regions in Egypt. Its position in the ranks since 1975 has fallen; relative to other regions in Egypt, the street network in Al Iskandariyah has become more connected. Al Iskandariyah ranked 22nd in 1975, 25th in 1976-1990, 24th in 1991-2000 and 23rd in 2001-2014.