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Home > Statistics > Housing and Land Survey > Explanation of Terms of the 1998 Survey > 3. Dwelling environments and kind of city planning

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Housing and Land Survey 

3. Dwelling environments and kind of city planning

 DURATION OF SUNSHINE

This refers to the number of hours that sunshine entered dwelling rooms on a sunny day around the survey date, i.e., the total hours when the sunshine came into a part of a dwelling, such as dwelling rooms, passageways, and windowsills.
In the case that sunshine entered more than one room, the duration of sunshine was calculated as the period from the time that sunshine first entered one of the rooms until there was no sunshine in either room. In the case that there was a period within that time where sunshine failed to enter either room, the length of period of no sunshine was deducted. Figures included periods during which sunshine did not enter the dwelling room but did enter passageways bordering the room or fell upon the room's windowsills.
In the case that no sunshine entered the dwelling, the category of "under one hour" was designated.

 WIDTH AND STATE OF PAVEMENT OF ROADS ABUTTED ON THE SITE OF HOUSING UNIT

An inquiry was made on the width and state of pavement of roads abutted on the site of housing unit.
The width includes those of sidewalks and gutters, and when there are two or more roads abutted on, then the widest one should be chosen to mention.
If the site of housing unit is abutted only on a vacant lot or a park but not on any road, or if the site touched on the road for a length less than 2 meters only, then it should be defined as "not abutted on". However, if the site is adjacent to an open ground such as a station square, such a ground should be regarded as a road of 10 meters and over wide just for convenience sake provisionally.

KIND OF CITY PLANNING AREA

Based on the kind of city planning area, enumeration districts for this survey were classified as follows. In case an enumeration districts fell into two or more groups of the classification, it was included in the group with the smaller number.

City planning area

A.Urbanization promotion area

I.Industrial area
1.Industrial area A
(1)Exclusive industrial district
(2)Exclusive industrial district with others
(3)Industrial district
(4)Industrial district with others
2.Industrial area B
(5)Quasi industrial district
(6)Quasi industrial district with others

II.Commercial area
1.Commercial area A
(7)Commercial district
(8)Commercial district with others
2.Commercial area B
(9)Neighborhood commercial district
(10)Neighborhood commercial district with others
III.Residential area
1.Residential area
(11)Quasi residential district
(12)CategoryII residential district
(13)CategoryI residential district
(14)Residential district CategoryI and CategoryII
(15)Residential district with others
2.Exclusively medium-high residential area
(16)CategoryII exclusively medium high residential district
(17)CategoryI exclusively medium high residential district
(18)Exclusively medium high residential district CategoryI and CategoryII
(19)Exclusively medium high residential district with others
3.Exclusively low story residential area
(20)CategoryII exclusively low story residential district
(21)CategoryI exclusively low story residential district
(22)Exclusively low story residential district CategoryI and CategoryII

B.Urbanization control areas
C.Undivided city planning area

Outside city planning area (Special count)

Fire protection area (Fire protection districts and quasi fire protection districts)

LEGAL BUILDING COVERAGE RATIO OF ENUMERATION DISTRICTS

Based on the kind of city planning area, the legal building coverage ratio of enumeration districts are classified in accordance with the Building Standards Law.
An enumeration district extending over more than two areas, however, was included in the dominant area.
An enumeration district not covered by the city planning area was included in "Not specified".

LEAGAL FLOOR SPACE RATIO OF ENUMERATION DISTRICTS

Based on the kind of city planning area, the legal floor space ratio of enumeration districts are classified in accordance with the Building Standards Law.
An enumeration district extending over more than two areas, however, was included in the dominant area.
An enumeration district not covered by the city planning area was included in "Not specified".

PUBLIC SEWER

An enumeration district in the sewerage treatment area was included in "Connected to public sewer". In other cases, they were included in "Not connected to public sewer".

DISTANCE TO THE NEAREST MEDICAL FACILITY

Enumeration districts were classified according to the distance, using the shortest road, from the central point of the enumeration district to the nearest medical facilities.

DISTANCE TO THE NEAREST PARK

Enumeration districts were classified according to the distance, using the shortest road, from the central point of the enumeration district to the nearest park.

DISTANCE TO THE NEAREST PUBLIC HALL / MEETING HALL

Enumeration districts were classified according to the distance, using the shortest road, from the central point of the enumeration district to the nearest public hall or meeting hall.

DISTANCE TO THE NEAREST EMERGENCY REFUGE SITE

Enumeration districts were classified according to the distance, using the shortest road, from the central point of the enumeration district to the nearest emergency refuge site.

DISTANCE TO THE NEAREST DAY SERVICES CENTER FOR AGED

Enumeration districts were classified according to the distance, using the shortest road, from the central point of the enumeration district to the nearest daycare center for aged.

DISTANCE TO THE ROAD OF 6 METERS OR MORE

Enumeration districts were classified according to the distance, using the shortest road, from the central point of the enumeration district to the road of 6 meters or more.

DISTANCE TO THE NEAREST POST OFFICE OR BANK

Enumeration districts were classified according to the distance, using the shortest road, from the central point of the enumeration district to the nearest post office or bank.

DISTANCE TO THE NEAREST CONVENIENCE STORE

Enumeration districts were classified according to the distance, using the shortest road, from the central point of the enumeration district to the nearest convenience store.

DISTANCE TO THE NEAREST RAILROAD STATION OR BUS STOP

Enumeration districts were classified according to the distance, using the shortest road, from the central point of the enumeration district to the nearest railroad station or bus stop.

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