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A comparison of construction automation in major constraints and potential techniques for automation in the United States, Japan, and Taiwan

The investment in construction automation is tremendous. and the duration of the benefit return is long. Therefore, those who develop construction automation must determine how to identify the potential techniques for automation and search the major constraints in order to reduce the risk of investment in construction automation. This thesis reviews issues facing the construction industries in the US, Japan, and Taiwan, and compares current automation feasibility analysis methodologies. For searching major constraints and identifying high potential techniques, sixteen basic constraints have been selected, and a new feasibility analysis methodology has also been suggested. Both of these have been included in a questionnaire sent to all the three countries. Based on the result of this survey, the major constraints and appropriate techniques for automation are compared. Due to the recession of the whole industry, insufficient government funding for developing CA, the particular nature of the construction industry, and the change of the policies such as the bidding system, "risk of unstable future market" has been found as the major constraint among all these three countries. Because the strong demand for accurate survey in construction and the great near term availability of a particular support technology, survey-control technique is identified as the most potential technique for automation. Thesis Supervisor: Charles H. Helliwell Title: Senior Lecturer of Civil and Environmental Engineering