Atlas of Urban Expansion

Okayama
Japan
Region: Europe and Japan
2014 Population
1,277,186
2014 Urban Extent
72,442
hectares
2014 Density
18
persons/hectare
Areas and Densities
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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 2000, when its urban extent was 60,992 hectares.

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  • Urban Extent
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  • Exurban Area
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  • 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.

Blocks and Roads
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Roads

Average road width in the Okayama 1990-2014 expansion area was 5.59 meters, compared to 7.93 meters in its pre-1990 area.

The share of built-up area in Okayama occupied by roads in the 1990-2014 expansion area was 15%, compared to 15% in the pre-1990 area.

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.

1990-2000  2000-2014
1990-2000  2000-2014
1990-2000  2000-2014

Blocks and Plots

Average block size in Okayama's 1990-2014 expansion area was 3.24 hectares, compared to 5.3 hectares in its pre-1990 area.

1990-2000  2000-2014