Comparisons
Alger vs. the other two most closely populated regions in Algeria: Oran and Blida
Alger in context: Street-network sprawl of new development
The level of street-network sprawl in new development in Alger rose steadily. To get a sense of how street development has changed in Alger, we can consider three of its most populous cities: Algiers, Zeralda and Sidi Moussa. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in new development in Algiers followed a zig-zag trend with an overall increase. The level of street-network sprawl in new development in Zeralda peaked in 1991-2005. The level of street-network sprawl in new development in Sidi Moussa followed a zig-zag trend with an overall increase.
How do development practices in Alger fare in comparison to others in Algeria? Most recently in 2006-2020, street construction in Alger was the 43rd-most disconnected out of the 45 regions in Algeria. Its position in the ranks since 1975 has fallen; relative to other regions in Algeria, street construction in Alger has become more connected. Alger ranked 37th in 1975, 41st in 1976-1990, 41st in 1991-2005 and 43rd in 2006-2020.
Alger in context: Aggregate street-network sprawl
As of 2020, the city with the most disconnected street network in Alger is Algiers with an SNDi of 4.31, which is sprawly. Conversely, the most connected city is Zeralda with an SNDi of 3.99, which is sprawly. See trends for these cities: Zeralda, Algiers
The level of street-network sprawl in the aggregate network in Alger rose steadily. To get a sense of how the aggregate street network has changed in Alger, we can consider three of its most populous cities: Algiers, Zeralda and Sidi Moussa. Out of the three cities, Zeralda and Sidi Moussa do not follow the same trend as the region. The level of street-network sprawl in the aggregate network in Zeralda peaked in 1991-2005. The level of street-network sprawl in the aggregate network in Sidi Moussa followed a zig-zag trend with an overall increase.
To date, Alger is the 41st-most disconnected out of the 45 regions in Algeria. Its position in the ranks since 1975 has fallen; relative to other regions in Algeria, the street network in Alger has become more connected. Alger ranked 37th in 1975, 37th in 1976-1990, 39th in 1991-2005 and 41st in 2006-2020.