Pongpeng, Jakrapong

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Pongpeng, Jakrapong
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Email
jakrapong.po@kmitl.ac.th

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    Item type:Publication,
    Causes of construction delay from contractors and suppliers in Thailand's oil and gas platform projects
    (2018-08-14)
    Gomarn, Pittayaporn
    ;
    Pongpeng, Jakrapong
    Construction project delays caused by contractors and suppliers are the top problems in Thailand's oil and gas industries. Recognizing this importance and their relationships between factors can help reduce the risk of delays in construction projects. Therefore, this study set out to confirm factors and inspect relationships between delay factors of contractors and suppliers. A 16 item questionnaire survey was distributed to 134 managers, engineers, and supervisors in oil and gas platform construction projects in Thailand. A confirmatory factor analysis (CFA) was performed by the use of Amos Version 20 software program. The analysis results showed that delays caused by the contractors and suppliers had high relationships, due to high regression weighs. The delays caused by the contractors included seven factors which included poor site management and supervision (17%), lack of safety rules and regulations (16%), poor communication and coordination with others (15%), poor procurement system management (15%), defective components and mistakes during construction (14%), supplier payments lateness (13%), and poor planning and scheduling (10%). The delays caused by the suppliers included six factors which included the supply of unqualified and unskilled personnel (22%), supply of low efficiency equipment (20%), late delivery of materials and equipment (20%), supply of low quality materials (16%), late supply of workers (16%), and price escalation (5%).
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    Item type:Publication,
    A SEM ANALYSIS OF THE IMPACT OF UNETHICAL STAKEHOLDER BEHAVIORS ON CONSTRUCTION PROJECT FAILURES: AN OIL AND GAS INDUSTRY STUDY
    (2022-03-01)
    Gomarn, Pittayaporn
    ;
    Pongpeng, Jakrapong
    Continued unethical behavior by stakeholders within the oil and gas construction industry has a possible impact on the failure of many projects. This study therefore aims to investigate the impact of this type of behavior on the oil and gas construction industry. A conceptual framework was developed from both a literature review and interviews with 8 experts working on oil and gas construction projects in Myanmar, Malaysia and Thailand. A 31-item questionnaire was used to measure the 304 responses, from which a confirmatory factor analysis and structural equation model (SEM) were developed to investigate this impact. The results revealed that the most significant direct impact on a project's failure was a main contractor's unethical behavior. Furthermore, the study determined that the unethical behaviors of the consultant and designer had no direct impact on a project's failure but that there was an impact of the owner's unethical behavior. Ranked in order of importance, the indicators of a project failure are as follows: stakeholders' dissatisfaction; cost overrun; time overrun; negative effects on health, safety and environment; quality defects; and dispute and litigation. The results provide a guideline for developing a code of ethics to conduct unethical behavior investigations, which will help decrease future project failures.
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    Item type:Publication,
    Project failure Indicators: Perceptions of Thai and Malaysian engineers
    (2018-08-14)
    Gomarn, Pittayaporn
    ;
    Pongpeng, Jakrapong
    This research aims to compare the rank and importance level of failure indicators of the construction projects from the perception of Thai and Malaysian engineers. The questionnaire was used to survey the opinions of the engineers who supervised construction projects in Bangkok, Thailand and Kuala Lumpur, Malaysia. Analysis of the data was undertaken with the use of SPSS software which included a comparison of the importance level of construction project failure indicators from the perception of Thai and Malaysian engineers. Additionally, the Mann Whitney U test was used to compare the similarities and differences of construction project failure indicators from the perceptions of both Thai and Malaysian engineers. The results showed that construction project failure indicators from both Thai and Malaysian engineers were similar. Failure indicators ranked in importance were: 1) negative effects on safety, health and environment (18.83%), 2) cost overrun (18.44%), 3) time overruns (17.41%), 4) quality defects (16.43%), 5) stakeholders' dissatisfaction (15.36%), and 6) dispute and litigation (13.54%). The outcome of the research is therefore useful in assisting supervisory staff better understand project failure indicators. In addition, the research can be used as a guideline for analyzing the risk of failures in construction projects.