1. GIS based Census Data Dissemination
Training Course on Analysis and Dissemination of Population and Housing Census Data with Gender Concern
3 - 7 October 2011, Dili, Timor-Leste
GIS based Census Data Dissemination
H. Furuta
Lecturer/Statistician
SIAP

2. Contents Statistical Maps What is GIS Small area statistics
Grid square statistics
DID (Densely Inhabited District)
Demo: Web GIS of Japan

3. Population density by administrative boundary “prefectures”
Population per square kilometer

4. Population density by administrative boundary “municipalities”
Population per square kilometer

5. Workers and students commuting to Ku-area of Tokyo

6. Webpage of ‘Statistical Maps of Japan’
SBJ( – English – Statistics – Region/Geographic Information – Statistical maps of Japan
URL:　

7. Population Census 2005 Statistical Maps of Japan
Ready-made thematic maps
Formerly, provided in the form of atlas or poster to the limited users
Now, available on the web for all the public

8. Geographic Information System
What is GIS
Geographic Information System

9. Statistical GIS Stat Map = Map + Stat data Stat GIS = GIS application
+ Boundary data of regions Disaggregated data by region
Sometimes, point data (coordinates) , such as place of the regional office, represents the region.

10. Boundary data Administrative area Measures against instability
Not stable
Measures against instability
Concept of BUB (Basic Unit Block) in Japan
Grid square using latitude and longitude

11. Disaggregated data by region
Administrative area
Prefectural governments (47)
Municipalities (city, town, village)
Minimal survey area
BUB ED

12. Geo-Relational Model Layer 1 : Roads and houses Layer 2 : Rivers
Layer 3 : Land use
Layer 4 : Land image
Real world

13. Analysis by GIS Road map Area within 1 km of a road Land image map
Comparatively flat area
Land use
Not forest area
Result of analysis

14. Small Area Statistics by BUB/EA
Boundary data of each EA
Disaggregated data by EA, such as, population by sex and age group and number of households

15. Inundated Area Map of three prefectures of suffering of East Japan great earthquake disasters
Miyagi
prefecture
Hit by TSUNAMI
on 11 March 2011
Iwate prefecture

16. Fukushima Atomic Power Plant
Inundated Area Map of three prefectures of suffering of East Japan great earthquake disasters
Number of the population, the households which lived in the inundation area
Populattion
Household
Total
510,697
179,278
Iwate prf.
107,503
39,673
Miyagi prf.
331,902
116,758
Fukusima prf.
71,292
22,847
Fukushima Atomic Power Plant
2010 Population Census Preliminary Counts of the Population and Households
Fukusima
prefecture

17. Inundated Area Map made by Geospatial Information Authority
Miyagi pref.
Kesennnuma Ciry
aerial photo
Inundated Area Map

18. Calculating population and the number of the households with small area statistics
BUB/ED

19. Grid Square Statistics

20. Grid square statistics
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 1km2 (1Km x 1Km) and 0.25km2 (500m x 500m), dividing the whole area of Japan by latitude and longitude.

21. Assignment of enumeration districts into grid squares
Boundary data of each grid square
Statistical data by grid square

22. Grid square statistics in Japan
English pages available
Ready-made compiled statistical data by grid squares
GIS software used for presenting maps of grid square statistics

23. Population change of Tokyo area between 1995 and 2005 by grid square statistics
Red: Increase by more than 1,000 people
Blue: decrease by more than 1,000 people

24. Population of the aged 65 years and over
in Chugoku District
and over
Many marginal hamlets
In intermediate and mountainous area

25. Population of the aged 65 years and over
Tohoku District
Chugoku District

26. DID (Densely Inhabited District)

27. 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
city
towns
villages
Total
1953
286
1,966
7,616
9,868
1956
498
1,903
1,574
3,975
2010
779
844
197
1,727
Municipal mergers

28. Densely Inhabited District
A DID was established as one of regional presentations for Population Census 1960.
A DID consists of adjoining basic unit blocks that have high population density of 4,000 person/Km2 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.

29. Densely Inhabited District

30. Densely Inhabited District

31. Densely Inhabited District

32. Go to Demo: Web GIS of e-Stat as a part of e-Gov Japan
e-Stat ( ) – Click ‘English’

33. Portal of Official Statistics of Japan
e-Stat ( ) – Click ‘English’

34. Selecting statistical table
Easy way:
Select set of tables
(B)
Select census/survey Select table/item

35. Presenting statistical map
1. Default:
Whole Japan
2. Go to selected prefecture

36. Map of Chiba Prefecture
Go to seleted municipality
Mihamaku, Chiba city

37. Map of Mihama-ku, Chiba-city
Focus on the area around Kaihim-Makuhari St.
Kaihim-Makuhari
Station

38. Map of Kaihim-Makuhari
shopping store
SIAP
STATION
HOTEL

39. Select statistical itemst
Number of total population and pie chart of gender in small area statistics
Select statistical itemst
Properties
Set Chart
Set Label

40. Aggregates of small areas within radius 500m from Akihabara Station
Select boundary
Akihabara
Station
Tabulation based on selected boundary