Atlas of Urban Expansion

Population

The Population of Okayama in 2014 was 1,277,186, increasing at an average annual rate of 0.5% since 2000. The population of Okayama in 2000 was 1,196,567, increasing at an average annual rate of 0.3% since 1990, when its population was 1,156,304.

Urban Extent

The Urban Extent of Okayama in 2014 was 72,442 hectares, increasing at an average annual rate of 0.9% since 2000. The urban extent in 2000 was 64,302 hectares, increasing at an average annual rate of 0.5% since 1990, when its urban extent was 60,992 hectares.

• 1990
• 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 Okayama in 2014 was 28 persons per hectare, decreasing at an average annual rate of -0.5% since 2000. The built-up area density in 2000 was 30 persons per hectare, decreasing at an average annual rate of -0.6% since 1990 when the built-up area density was 31.52 persons per hectare.

The Urban Extent Density in Okayama in 2014 was 18 persons per hectare, decreasing at an average annual rate of -0.4% since 2000. The urban extent density in 2000 was 19 persons per hectare, decreasing at an average annual rate of -0.2% since 1990 when the urban extent density was 19 persons per hectare.

Composition of Added Area

A total of 5,755 hectares of built-up area was added to the Okayama urban extent between 2000 and 2014. Of that added built-up area, 47% was Infill, 13% was Extension, 1% was Leapfrog, and 39% was Inclusion. A total of 3,509 hectares of built-up area was added to the urban extent between 1990 and 2000. Of that added built-up area, 59% was Infill, 14% was Extension, 1% was Leapfrog, and 26% was Inclusion.

• 1990–2000
• 2000–2014

• Built-up Area
  1990
• Infill
• Extension
• Leapfrog
• Inclusion

Roads

Average road width in the Okayama 1990-2014 expansion area was 4.45 meters, compared to 5.66 meters in its pre-1990 area.

The share of built-up area in Okayama occupied by roads in the 1990-2014 expansion area was 23%, compared to 26% in the pre-1990 area.

• Pre 1990
• 1990 – 2014

Arterial Roads

The density of arterial roads in Okayama's 1990-2014 expansion was 1.57 km/km2, compared to 1.63 km/km2 in its pre-1990 area.

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

• 1990
• 2014

Blocks and Plots

Average block size in Okayama's 1990-2014 expansion area was 2.3 hectares, compared to 1.6 hectares in its pre-1990 area.

• Pre 1990
• 1990 – 2014