Context
The chart above shows the evolution of street network disconnectedness of the most connected and most disconnected cities in Algeria, for both new street additions (left) and the aggregate street network (right).
Algeria in context: Street-network sprawl of new development
The level of street-network sprawl in new development in Algeria followed a zig-zag trend with an overall decrease. To get a sense of how street development has changed in Algeria, we can consider three of its most populous regions: Alger, Oran and Blida. Out of the three regions, Alger and Blida do not follow the same trend as the country. The level of street-network sprawl in new development in Alger rose steadily. The level of street-network sprawl in new development in Blida peaked in 1991-2005.
How do development practices in Algeria fare in comparison to others in the world? Most recently in 2006-2020, street construction in Algeria was the 25th-most disconnected out of the 179 countries in the world. Its position in the ranks since 1975 has risen; relative to other countries in the world, street construction in Algeria has become more disconnected. Algeria ranked 88th in 1975, 66th in 1976-1990, 31st in 1991-2005 and 25th in 2006-2020.
The largest city in Algeria is Algiers, with a population of 2861100 people. Taking into account the entire (i.e. aggregate) street network in Algiers as of 2020, the overall level of street-network sprawl is 4.31, which is sprawly. The level of street-network sprawl in new development in Algiers followed a zig-zag trend with an overall increase.
Algeria in context: Aggregate street-network sprawl
As of 2020, the city with the most disconnected street network in Algeria is Medea with an SNDi of 5.71, which is very sprawly. Conversely, the most connected city is El Oued with an SNDi of 1.16, which is very well-connected. See these two cities’ trends in the above graph, or dive deeper into each: El Oued, Medea.
The level of street-network sprawl in the aggregate network in Algeria peaked in 1976-1990. To get a sense of how the aggregate street network has changed in Algeria, we can consider three of its most populous regions: Alger, Oran and Blida. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in the aggregate network in Alger rose steadily. The level of street-network sprawl in the aggregate network in Oran rose steadily. The level of street-network sprawl in the aggregate network in Blida rose steadily.
To date, Algeria is the 55th-most disconnected out of the 179 countries in the world. Its position in the ranks since 1975 has risen; relative to other countries in the world, the street network in Algeria has become more disconnected. Algeria ranked 88th in 1975, 84th in 1976-1990, 68th in 1991-2005 and 55th in 2006-2020.
The largest city in Algeria is Algiers, with a population of 2861100 people. Taking into account the entire (i.e. aggregate) street network in Algiers as of 2020, the overall level of street-network sprawl is 4.31, which is sprawly. The level of street-network sprawl in the aggregate network in Algiers rose steadily.