よむ、つかう、まなぶ。
第24回過労死等防止対策推進協議会 全体版資料 (104 ページ)
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Chapter 3
Survey and analysis results on karoshi, etc.
1 (3) (4) Survey results and analysis of priority industries and occupations (Construction and IT
(Source) Social Science and Occupational Health Research Group, National Institute of Occupational Safety and Health based on "Labour and social survey
industries)
and study for the current status of overwork-related disorders in FY2021"
An interview survey was conducted to clarify the specific background of the reasons for overtime work in the construction and
IT industries, as indicated by the results of the questionnaire survey.
(1) In both construction and IT industries, respondents indicated that contractors (clients) require overtime work due to the
need to strictly adhere to deadlines and the risk of having to pay for delays in preceding work processes.
(2) In the IT industry, respondents indicated that sudden changes in specifications, etc., occur due to lack of understanding of
the work process by the client.
Reasons for overtime work (Construction industry/workers' survey)
0
20
Percentage of frequency of experiencing external factors (Construction industry/workers' survey)
40
60
Due to the large difference between busy and
仕事の繁閑の差が大きいため
off-peak work periods
48.2
41.9
Due
to shortage of manpower
人員が不足しているため
仕事の特性上、長時間の労働を行わないとでき
Due to the nature of the work, some jobs cannot be
done without working long hours
ない仕事があるため
38.0
・Clients insist that deadlines are met.
・The delivery deadlines for public works projects and orders from major general contractors are
concentrated at the end of the fiscal year, which is the closing period of accounting.
・Workers engaged in construction management work must complete reports, process control
and other administrative work after returning to the office from the job site.
Reasons for overtime work (Information services industry/workers' survey)
20
40
60
Given the 業務量が多いため
large volume of work
Due to the large difference between busy and
仕事の繁閑の差が大きいため
off-peak work periods
顧客からの不規則な要望に対応する必要があ
るため
Due to the need to respond to irregular client requests
20
Unreasonable
deadlines (n=695)
無理のある納期(n=695)
30.7
無理な業務依頼(n=695)
Unreasonable
work requests (n=695)
31.9
Almost
never
ほとんどない
40
60
80
31.4
29.5
（％）
8.5
32.2
27.8
時々ある
よくある
Occasionally
Often
Not
often
あまりない
100
8.1
[Examples of interview survey responses]
[Examples of interview survey responses]
0
0
（％）
（％）
55.7
48.6
・If the client is a government agency or municipality, due to a single-year budget, they
require an unreasonable deadline so that the construction period does not exceed the
fiscal year.
・If subsidies are received for educational facilities, etc., construction deadlines are always
established.
・If the client is a general contractor, the contractor must strictly adhere to the overall
construction schedule, even if other upstream companies or processes delay the schedule,
meaning builders in later processes must pay for the delays.
Percentage of frequency of experiencing external factors (Information services industry
0
20
40
60
80
/workers' survey)
無理のある納期（n=98）
Unreasonable
deadlines (n=98)
Complaints from customers or clients (n=98)
顧客やクライアントからのクレーム（n=98）
Sudden changes急な仕様変更（n=98）
in specifications (n=98)
48.6
[Examples of interview survey responses]
・Delivery date is prioritized, therefore as the delivery date approaches, the workload on workers
increases, resulting in a shortage of manpower and overwork.
・Hardware comes first in product manufacturing and software is implemented at the end of the
work process, which puts a strain on the software industry.
・Our clients require changes in conditions and specifications, but do not respond to changes in
delivery dates.
・Few clients understand the work process.
29.6
32.7
Not
often
あまりない
39.8
28.6
24.5
Difficulties associated with being stationed at a
客先常駐に伴う難題（n=98）
customer's site (n=98)
Almost
never
ほとんどない
21.4
23.5
53.1
Occasionally
時々ある
31.6
39.8
25.5
100
（％）
9.2
7.1
12.2
14.3 7.1
Often
よくある
[Examples of interview survey responses]
・For large companies, etc., postponement of new product release is prohibited, while
delivery date is prioritized.
・The client has already decided on the handover (delivery date).
・The work process is often not understood and specification changes often occur with "a
word from the top" from the client's management.
104
Survey and analysis results on karoshi, etc.
1 (3) (4) Survey results and analysis of priority industries and occupations (Construction and IT
(Source) Social Science and Occupational Health Research Group, National Institute of Occupational Safety and Health based on "Labour and social survey
industries)
and study for the current status of overwork-related disorders in FY2021"
An interview survey was conducted to clarify the specific background of the reasons for overtime work in the construction and
IT industries, as indicated by the results of the questionnaire survey.
(1) In both construction and IT industries, respondents indicated that contractors (clients) require overtime work due to the
need to strictly adhere to deadlines and the risk of having to pay for delays in preceding work processes.
(2) In the IT industry, respondents indicated that sudden changes in specifications, etc., occur due to lack of understanding of
the work process by the client.
Reasons for overtime work (Construction industry/workers' survey)
0
20
Percentage of frequency of experiencing external factors (Construction industry/workers' survey)
40
60
Due to the large difference between busy and
仕事の繁閑の差が大きいため
off-peak work periods
48.2
41.9
Due
to shortage of manpower
人員が不足しているため
仕事の特性上、長時間の労働を行わないとでき
Due to the nature of the work, some jobs cannot be
done without working long hours
ない仕事があるため
38.0
・Clients insist that deadlines are met.
・The delivery deadlines for public works projects and orders from major general contractors are
concentrated at the end of the fiscal year, which is the closing period of accounting.
・Workers engaged in construction management work must complete reports, process control
and other administrative work after returning to the office from the job site.
Reasons for overtime work (Information services industry/workers' survey)
20
40
60
Given the 業務量が多いため
large volume of work
Due to the large difference between busy and
仕事の繁閑の差が大きいため
off-peak work periods
顧客からの不規則な要望に対応する必要があ
るため
Due to the need to respond to irregular client requests
20
Unreasonable
deadlines (n=695)
無理のある納期(n=695)
30.7
無理な業務依頼(n=695)
Unreasonable
work requests (n=695)
31.9
Almost
never
ほとんどない
40
60
80
31.4
29.5
（％）
8.5
32.2
27.8
時々ある
よくある
Occasionally
Often
Not
often
あまりない
100
8.1
[Examples of interview survey responses]
[Examples of interview survey responses]
0
0
（％）
（％）
55.7
48.6
・If the client is a government agency or municipality, due to a single-year budget, they
require an unreasonable deadline so that the construction period does not exceed the
fiscal year.
・If subsidies are received for educational facilities, etc., construction deadlines are always
established.
・If the client is a general contractor, the contractor must strictly adhere to the overall
construction schedule, even if other upstream companies or processes delay the schedule,
meaning builders in later processes must pay for the delays.
Percentage of frequency of experiencing external factors (Information services industry
0
20
40
60
80
/workers' survey)
無理のある納期（n=98）
Unreasonable
deadlines (n=98)
Complaints from customers or clients (n=98)
顧客やクライアントからのクレーム（n=98）
Sudden changes急な仕様変更（n=98）
in specifications (n=98)
48.6
[Examples of interview survey responses]
・Delivery date is prioritized, therefore as the delivery date approaches, the workload on workers
increases, resulting in a shortage of manpower and overwork.
・Hardware comes first in product manufacturing and software is implemented at the end of the
work process, which puts a strain on the software industry.
・Our clients require changes in conditions and specifications, but do not respond to changes in
delivery dates.
・Few clients understand the work process.
29.6
32.7
Not
often
あまりない
39.8
28.6
24.5
Difficulties associated with being stationed at a
客先常駐に伴う難題（n=98）
customer's site (n=98)
Almost
never
ほとんどない
21.4
23.5
53.1
Occasionally
時々ある
31.6
39.8
25.5
100
（％）
9.2
7.1
12.2
14.3 7.1
Often
よくある
[Examples of interview survey responses]
・For large companies, etc., postponement of new product release is prohibited, while
delivery date is prioritized.
・The client has already decided on the handover (delivery date).
・The work process is often not understood and specification changes often occur with "a
word from the top" from the client's management.
104