CONCLUSIONS AND DISCUSSIONS
Focusing on the FPS, the authors have compared the conventional construction with lean
construction and the factory car production system in Japan, and clarified the following.
(1) It is effective to introduce the Toyota Production System into the construction work.
• Construction time can be reduced and the number of workers leveled by
eliminating waste.
• Every worker can easily understand target levels by posting control boards in
a prominent place, which leads to increasing the worker's motivation to work.
• Stable operating efficiency can be promptly obtained by preparing detailed
SOPD.
(2) On the other hand, the daily workload of posting control boards in a prominent place
increases. Because repetitive tasks particularly in the construction industry make up a
small proportion as compared with the manufacturing industry, the point of
importance is how to reduce the workload of collecting data and posting control
boards every day. For this purpose, database creation becomes indispensable.
(3) In the manufacturing industry, even the lowest level worker is on the payroll in
general, whereas the workers on a payroll are seldom seen in the construction
industry. Accordingly, improvement activities are easily disseminated to every
worker in the manufacturing industry, whereas in the construction industry, the
activities are disseminated to foreman but it is hard to disseminate the activities to
every worker. The important point is how to increase the motivation of every worker.
CONCLUSIONS AND DISCUSSIONSFocusing on the FPS, the authors have compared the conventional construction with leanconstruction and the factory car production system in Japan, and clarified the following.(1) It is effective to introduce the Toyota Production System into the construction work.• Construction time can be reduced and the number of workers leveled byeliminating waste.• Every worker can easily understand target levels by posting control boards ina prominent place, which leads to increasing the worker's motivation to work.• Stable operating efficiency can be promptly obtained by preparing detailedSOPD.(2) On the other hand, the daily workload of posting control boards in a prominent placeincreases. Because repetitive tasks particularly in the construction industry make up asmall proportion as compared with the manufacturing industry, the point ofimportance is how to reduce the workload of collecting data and posting controlboards every day. For this purpose, database creation becomes indispensable.(3) In the manufacturing industry, even the lowest level worker is on the payroll ingeneral, whereas the workers on a payroll are seldom seen in the constructionindustry. Accordingly, improvement activities are easily disseminated to everyworker in the manufacturing industry, whereas in the construction industry, theactivities are disseminated to foreman but it is hard to disseminate the activities toพนักงานทุกคน จุดสำคัญคือ การเพิ่มแรงจูงใจของพนักงานทุกคน
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