Atlas of Urban Expansion

Population

The Population of Algiers in 2014 was 3,085,561, increasing at an average annual rate of 2.5% since 2000. The population of Algiers in 2000 was 2,184,791, increasing at an average annual rate of 2.7% since 1987, when its population was 1,535,735.

Urban Extent

The Urban Extent of Algiers in 2014 was 44,812 hectares, increasing at an average annual rate of 4% since 2000. The urban extent in 2000 was 25,439 hectares, increasing at an average annual rate of 4.7% since 1987, when its urban extent was 13,903 hectares.

• 1987
• 2000
• 2014

•  
• Urban Extent
• Urban Built-up
• Suburban Built-up
• Rural Built-up
• Urbanized Open Space
•  
• Exurban Area
• Exurban Built-Up Area
• Exurban Open Space
•  
• Rural Open Space
• Rural Open Space

Density

Built-up Area Density in Algiers in 2014 was 111 persons per hectare, decreasing at an average annual rate of -1.6% since 2000. The built-up area density in 2000 was 140 persons per hectare, decreasing at an average annual rate of -3% since 1987 when the built-up area density was 206.26 persons per hectare.

The Urban Extent Density in Algiers in 2014 was 69 persons per hectare, decreasing at an average annual rate of -1.6% since 2000. The urban extent density in 2000 was 86 persons per hectare, decreasing at an average annual rate of -2% since 1987 when the urban extent density was 110 persons per hectare.

Composition of Added Area

A total of 12,168 hectares of built-up area was added to the Algiers urban extent between 2000 and 2014. Of that added built-up area, 30% was Infill, 41% was Extension, 0% was Leapfrog, and 29% was Inclusion. A total of 8,200 hectares of built-up area was added to the urban extent between 1987 and 2000. Of that added built-up area, 31% was Infill, 29% was Extension, 5% was Leapfrog, and 35% was Inclusion.

• 1987–2000
• 2000–2014

• Built-up Area
  1987
• Infill
• Extension
• Leapfrog
• Inclusion

Roads

Average road width in the Algiers 1990-2014 expansion area was 6.62 meters, compared to 9.49 meters in its pre-1990 area.

The share of built-up area in Algiers occupied by roads in the 1990-2014 expansion area was 25%, compared to 23% in the pre-1990 area.

• Pre 1990
• 1990 – 2014

Arterial Roads

The density of arterial roads in Algiers's 1990-2014 expansion was 1.09 km/km2, compared to 1.68 km/km2 in its pre-1990 area.

The share of built-up area within walking distance of an arterial road in Algiers's 1990-2014 expansion area was 80%, compared to 89% in the pre-1990 area.

• 1987
• 2014

Blocks and Plots

Average block size in Algiers's 1990-2014 expansion area was 6.7 hectares, compared to 4.5 hectares in its pre-1990 area.

• Pre 1990
• 1990 – 2014