Utilization - PowerPoint Presentation

Slide1

Utilization of GIS in Japan

Hiroyuki KITADA , Yumi SEKINE

National Statistics Center

Japan Slide2

Content

Outline and Advantage of GIS

Utilization of Census data in GIS

Services by the “e-stat”

Grid square statistics

Densely Inhabited District

Challenge

ConclusionSlide3

Outline of GIS

GIS(

G

eographic

I

nformation

System) enables an advanced analysis by managing and processing data that are linked to location(s) and displaying visually.

Land Information

Building Information

Road Information

Administration field and statistical

Information

Original map where layer was overlappedSlide4

Advantage of GIS

The display control in the map can be freely done.

(expansion, reduction of the map, and movement of the display position)

Measurement of distance and area can be easily calculated.

(measurement of distance between arbitrary points, area measurement in arbitrary area)

Data with the address can be automatically displayed in the map.

The information extraction can be done easily by using the map.

(classification display, map expression that corresponds to the condition of designation)Effective expression can be freely done according to the purpose.

(It is possible to express it in the classification chart, the ranking map (choropleth map), and the graph chart and the distribution map)

Three dimensional analyses can be done. (Bird's-eye view and the cross section, etc. can be made.)Slide5

Example of Using GIS Data

Compilation of small area statistics

Compilation of Grid-Square(Mesh Blocks) Statistics

Demarcation of DID

(Densely Inhabited

District)

GIS data is used in various fields such as universities and research laboratories including the local public entity that promotes the regional administration. Slide6

Population density by administrative boundary “prefectures”

Population per square kilometerSlide7

Relation between GIS and Census data

GIS is used to decide “basic unit district” of Population Census.

GIS is formed with the census data which is based on “basic unit district”.

GIS is used to analyze small area statistics.

Statistical map can be made by using the data of Population Census.

Data of the Census can be used in 2005,2000,1995 now.

Statistical map that links Population Census with Establishment and Enterprise Census can be made.Slide8

e-Stat (Portal Site of Official Statistics)

8Slide9

e

-Stat

Thematic Map

The statistical data shown in map

Various statistical informations are displayed on the map, and the graphical representation and the total of statistical data can be shown.

Data download

Various data can be downloaded.

Information on consolidation of towns and villages

Consolidation information between different time points can be shown on the map.Slide10

The statistical data shown in map (example 1)

Population total ranking map and statistic label display around Chiyoda Ward, TokyoSlide11

The statistical data shown in map (example 2)

Pie chart of population ratio of men to women around Chiyoda Ward, TokyoSlide12

The statistical data shown in map (example 3)

A border map of Narita city(Chiba pref.), and it’s consolidation informationSlide13

Statistical map published with e-stat (

example 1)

Workers and Students Commuting to Ku-area of Tokyo-metropolitanSlide14

Statistical map published with e-stat (

example 2)Slide15

Administrative boundaries have varied sometimes

==

 time series comparison becomes difficult

Administrative boundaries are not suitable for small area analysis

The Statistics Bureau has reorganized the result of the Population Census and the Establishment and Enterprise Census into small regional square of approximately 1km

2

and 0.25km

2, dividing the whole area of Japan by latitude and longitude.

Grid Square StatisticsSlide16

Grid-Square(Mesh Blocks)

Advantage of Grid-Square

Quantitative comparisons between mesh

blocks are easy.

Time series comparisons of the region are easy.

The data of a particular region can be easily acquired.

Analysis, calculation and comparison related to the distance are easy.Slide17

Time Series Comparison Slide18

Population of the aged 65 years and over

and over

Marginal VillagesSlide19

Densely Inhabited

District

Promotion law for consolidation of towns and villages was enforced in1953.

City Areas became larger than before and urban features of the word “city” changed.

Year

Number of

Municipalities

Number of

Towns

Number of

villages

Total

1953

286

1,966

7,616

9,868

1956

498

1,903

1,574

3,975

2010

779

844

197

1,727Slide20

Densely Inhabited District

A DID was established as one of regional presentations for Population Census 1960.

A DID consists of adjoining basic unit districts that have high population density of 4,000person/Km

2

and overall population adds up to 5,000 residents or more.

A DID is used as one of calculation criteria for the amount of Local Allocation Tax which is annually grated from the national government to the local government.

A DID is also used as a basis for planning policy such as town planning, redevelopment of urban areas, or disaster prevention measures.

Slide21

Population density by administrative boundary “municipalities”

Population per square kilometerSlide22

Densely Inhabited

DistrictSlide23

Challenges

Consideration of setting standards of metropolis areas

Adaptation to system change

(change of operating system etc.)Slide24

Conclusion

The Census data takes an important role in GIS.

GIS is used to decide the basic unit district of the Census.

Utilization on web

Web-GIS

Statistical maps can be made on web.

Statistical maps that Statistics Bureau published can be browsed on web.

Challenge of GIS in the future

Consideration of setting standards of the metropolis areasSlide25

Thank you for your attention!