scholarly journals Construction Project Change Management in the Democratic Republic of the Congo: Status, Causes, and Impacts

2020 ◽  
Vol 12 (22) ◽  
pp. 9766
Author(s):  
Bauma Frigeant Bitamba ◽  
Sung-Hoon An

Changes in construction projects are very frequent and are expected to occur at any stage of the project. These changes modify the original scope of work and affect the project in various aspects. To minimize these effects, there is a need to implement a systematic change management system during the construction process. This study aimed to investigate the current situation of change management implementation, identify the main causes of change management, and assess their impacts in the Congolese construction industry. A comprehensive literature review was conducted for a thorough understanding of change management, and a structured survey was conducted. The collected survey data were analyzed using the relative importance index (RII), and Statistical Package for the Social Sciences (SPSS) methods. The results conclude that the change management implementation situation in the Congolese construction industry is significantly high, and the project cost and the project type play a major role in the implementation of change management in the construction projects. The study further revealed that the main causes of changes were the project, contractor, materials, equipment, and other causes. These changes impact the project significantly in terms of organization, owner and contractor, project, materials, and equipment.

2019 ◽  
Vol 19 (2) ◽  
pp. 79-88
Author(s):  
Sapitri Ap ◽  
Firdaus Firdaus

[ID] Waste merupakan salah satu penyebab rendahnya produktivitas. Besarnya potensi waste tentu saja akan merugikan owner ataupun kontraktor. Waste pada industri perumahan dapat mempengaruhi nilai jual rumah itu sendiri. Potensi waste material yang muncul pada proses pembangunan, penting untuk diidentifikasi dan dicari penyebabnya. Tujuan dari penelitian ini adalah mengidentifikasikan waste pada industri konstruksi (proyek perumahan) beserta sumber penyebab waste tersebut. Penelitian bersifat kuantitative dan data primer dikumpulkan dengan bantuan instrument kuesioner.  Responden yang terlibat seluruhnya adalah pengawas lapangan/penanggung jawab lapangan proyek perumahan.  The Statistical Package for Social Sciences (SPSS) dan fishbone diagram digunakan sebagai alat analisis variable dan indikator penyebab waste. Secara keseluruhan, hasil identifikasi penelitian menunjukkan bahwa material yang berpotensi ditemui pada proyek pembangunan perumahan di Pekanbaru yaitu material kayu dan batu bata (berpotensi sedang), material keramik, genteng, besi beton, cat, tanah, batu, pasir dan plesteran (berpotensi rendah) dan, cardboard packaging, plastic, kaca, metal, aspal dan plafond (berpotensi sangat rendah). Terdapat beberapa variable penyebab waste. Variabel-variabel tersebut terkait dengan sumber daya yang dibutuhkan selama proses pengerjaan proyek. Sumber penyebab waste yang berkonstribusi selama proses produksi secara signifikan dipengaruhi oleh variable: alat/mesin sebesar 0.885, metode kerja sebesar 0.873, material sebesar 0.866, manpower sebesar 0.821, dan lingkungan sebesar 0.808. Satu sumber variable dapat mempengaruhi variable yang lain, sehingga sangat penting untuk memperhatikan penyebab waste agar produktivitas pekerjaan dilapangan tidak terganggu. [EN] Waste is one of the causes of low productivity. The potential of waste will certainly harm the owner or contractor. Waste in housing industry can affect the sale price of the house. The potential of material waste in construction process is important to identify and need to find its cause. The purpose of this study is to identify waste in the construction industry (housing project) along with the source of the cause of the waste. Quantitative research is conducted and primary data were collected with questionnaire as the instrument. All respondents involved were supervisor. The Statistical Package for Social Sciences (SPSS) and fishbone diagrams are used as a tool for analyzing variables and indicators of the causes of waste. Overall, the result of research identification shows that the potential material in housing construction projects in Pekanbaru, namely wood and brick material (medium potential), ceramic, roof tile, steel, paint, soil, stone, sand and plastering (low potential) and, cardboard packaging, plastic, glass, metal, asphalt and ceiling (very low potential). There are several variables that cause waste. These variables are related to the resources that needed during the construction process. The sources of waste causes that contribute during the production process are significantly influenced by variables, i.e. tools / machines at 0.885, work methods at 0.873, materials at 0.866, manpower at 0.821, and the environment at 0.808. One source of variables can affect other variables, so it is necessary to pay attention to the waste causes so that work productivity uninterrupted.


2020 ◽  
Vol 6 (6) ◽  
pp. 1136-1142
Author(s):  
Fazal Ali Shaikh ◽  
Samiullah Sohu

Since 1987, construction companies all over the world welcomed a system for quality management IS0 9001 which was created by the International Organization for standardization. This study aims to recognize the implementation intensity of essential elements of ISO 9001 and the key advantages of ISO 9001 in construction firms after implantation of these elements. Total 51 recognized Pakistani construction companies were considered and studied however the respondent rate remained 59%. Moreover, the analysis of data was done by Statistical Package for the Social Sciences (SPSS) version 27. The most significant advantages and essential elements of ISO 9001 are the results evaluated by the study. Total 34 basic aspects were identified from the previous literature review. The findings of the result showed that the implementation of ISO are very important in construction projects. Identification of current issues and removal of preventable credentials is found most important implementation. Advantages of ISO in the construction industry are Satisfaction of employees, Increment in the ratio of captivation new projects, Decrease in wastage of material and better contacts in global markets respectively. The study will advantage Pakistani construction companies in improving quality work, performance and interest of implementing ISO 9001 will be created in construction firms in regard to groom quality standards.


2019 ◽  
Vol 19 (02) ◽  
pp. 79
Author(s):  
Sapitri Ap ◽  
Firdaus Firdaus

[ID] Waste merupakan salah satu penyebab rendahnya produktivitas. Besarnya potensi waste tentu saja akan merugikan owner ataupun kontraktor. Waste pada industri perumahan dapat mempengaruhi nilai jual rumah itu sendiri. Potensi waste material yang muncul pada proses pembangunan, penting untuk diidentifikasi dan dicari penyebabnya. Tujuan dari penelitian ini adalah mengidentifikasikan waste pada industri konstruksi (proyek perumahan) beserta sumber penyebab waste tersebut. Penelitian bersifat kuantitative dan data primer dikumpulkan dengan bantuan instrument kuesioner.  Responden yang terlibat seluruhnya adalah pengawas lapangan/penanggung jawab lapangan proyek perumahan.  The Statistical Package for Social Sciences (SPSS) dan fishbone diagram digunakan sebagai alat analisis variable dan indikator penyebab waste. Secara keseluruhan, hasil identifikasi penelitian menunjukkan bahwa material yang berpotensi ditemui pada proyek pembangunan perumahan di Pekanbaru yaitu material kayu dan batu bata (berpotensi sedang), material keramik, genteng, besi beton, cat, tanah, batu, pasir dan plesteran (berpotensi rendah) dan, cardboard packaging, plastic, kaca, metal, aspal dan plafond (berpotensi sangat rendah). Terdapat beberapa variable penyebab waste. Variabel-variabel tersebut terkait dengan sumber daya yang dibutuhkan selama proses pengerjaan proyek. Sumber penyebab waste yang berkonstribusi selama proses produksi secara signifikan dipengaruhi oleh variable: alat/mesin sebesar 0.885, metode kerja sebesar 0.873, material sebesar 0.866, manpower sebesar 0.821, dan lingkungan sebesar 0.808. Satu sumber variable dapat mempengaruhi variable yang lain, sehingga sangat penting untuk memperhatikan penyebab waste agar produktivitas pekerjaan dilapangan tidak terganggu. [EN] Waste is one of the causes of low productivity. The potential of waste will certainly harm the owner or contractor. Waste in housing industry can affect the sale price of the house. The potential of material waste in construction process is important to identify and need to find its cause. The purpose of this study is to identify waste in the construction industry (housing project) along with the source of the cause of the waste. Quantitative research is conducted and primary data were collected with questionnaire as the instrument. All respondents involved were supervisor. The Statistical Package for Social Sciences (SPSS) and fishbone diagrams are used as a tool for analyzing variables and indicators of the causes of waste. Overall, the result of research identification shows that the potential material in housing construction projects in Pekanbaru, namely wood and brick material (medium potential), ceramic, roof tile, steel, paint, soil, stone, sand and plastering (low potential) and, cardboard packaging, plastic, glass, metal, asphalt and ceiling (very low potential). There are several variables that cause waste. These variables are related to the resources that needed during the construction process. The sources of waste causes that contribute during the production process are significantly influenced by variables, i.e. tools / machines at 0.885, work methods at 0.873, materials at 0.866, manpower at 0.821, and the environment at 0.808. One source of variables can affect other variables, so it is necessary to pay attention to the waste causes so that work productivity uninterrupted.


2020 ◽  
Vol 5 (9) ◽  
pp. e003607 ◽  
Author(s):  
Simone E Carter ◽  
Nina Gobat ◽  
Jérôme Pfaffmann Zambruni ◽  
Juliet Bedford ◽  
Esther van Kleef ◽  
...  

2021 ◽  
Vol 9 (3) ◽  
pp. 52-57
Author(s):  
Yasir Mohamed Hassan Amin ◽  
Mohamed Abdulla Nugdalla Ahmedi

Quality management is considered one of the most important obstacles facing the construction industry in Sudan. The application of a quality assessment system contributes to the development of quality in projects as it is possible to measure the quality in projects. This paper aims to introduce one of the quality assessment systems, which is the system followed and applied in the Singapore (CONQUAS). This system assesses quality based on structural, architectural, mechanical and electrical work. The paper also aims to study the factors affecting the application of the quality assessment system in Sudan. The study is carried out in the region of Khartoum. The study is focusing on the construction projects. The study is carried out by questionnaires and other literature review. The respondents are consultants and contractors. The data has been distributed and analyzed by using the Average Index. From the study it was found that CONQUAS standard is assessed the building based on workmanship standards by the assessors from the BCA on site using standard score sheets. The assessment is done throughout the construction process for structural, mechanical and electrical works, and from questionnaire results the main factors affect construction industry in Sudan is lack of standardization in Sudan. The author recommended that more study shall be conducted to identify factors affecting quality in Sudanese construction industry and how to improve the quality.  


2009 ◽  
Vol 36 (3) ◽  
pp. 439-449 ◽  
Author(s):  
Yi Zou ◽  
Sang-Hoon Lee

Change orders are ubiquitous in construction projects, and effective and efficient control of changes is critical to project success. There have been many empirical suggestions as to how to manage changes for best project outcomes, but this research is specifically aimed at exploring the relationship between project characteristics and the implementation of project change management best practices (PCMBP). Construction project data for this research are derived from the Construction Industry Institute (CII) benchmarking and metrics (BM&M) database. Binary logistic regressions and factorial analysis of variance (ANOVA) are performed to find out the differences among diverse types of projects in terms of the extents to which the PCMBP elements have been implemented. The findings can assist construction industry practitioners with using PCMBP more purposefully in accordance with specific project characteristics so that they will be better able to develop and administer their project execution plans.


Author(s):  
Ulrike Quapp ◽  
Klaus Holschemacher

Construction projects often are particularly susceptible to conflicts due to their long-term character and complexity. In Germany, courts must deal with around 100,000 construction dispute litigations per year. Alternative Dispute Resolution (ADR) can be an alternative to expensive as well as time-consuming litigation and can help to relieve the judicial system. Furthermore, ADR may contribute to the satisfying settlement of a dispute between parties involved in the construction process and thus help to reach construction projects’ completion on time and within budget. Often, ADR mechanisms such as adjudication, mediation, and conciliation will be used. The paper analyzes the development of ADR in Germany in conjunction with European legal aspects. With special reference to the construction industry practice in Germany, various ADR measures and their advantages and disadvantages, as well as the current situation, will be explained. The authors conclude that, although ADR in Germany has experienced an upswing since the 1990s, it is used only to a small extent for settling disputes in construction projects. An increased knowledge about the advantages and disadvantages of different ADR measures in the construction industry would lead to more frequent uses of ADR. That, and a clever and detailed contract design, which helps to avoid conflicts basing on unclear contract contents, could save money and relieve the courts from time-consuming legal proceedings.


Author(s):  
Peter S. P. Wong ◽  
Luke Edmonson ◽  
Michael Phillip Kanellopoulos

Prefabrication has been widely adopted in the construction projects in recent years. It has also been advocated as a greener and more sustainable approach of project delivery. However, with a wealth of evidence supporting other reasons as the drivers of using prefabrication, it is questionable whether the real goal of prefabrication is to achieve sustainable construction. This study aims to investigate the roles of prefabrication in fostering sustainable construction. The effectiveness of prefabrication on fostering sustainable construction was evaluated on the five aspects enlisted by the UK’s Green Construction Board: Waste, Water, Carbon, Materials, and Biodiversity. An industry survey was conducted in Melbourne, Australia for data collection. 200 questionnaires were sent via email or post to a variety of fields within the construction industry. Entropy ranking analysis was adopted to analyze the effectiveness of using prefabrication in construction. The results suggest that prefabrication is effective in reducing construction waste and sourcing energy efficient materials. However, the utilization of prefabrication was found unsuccessful in reducing carbon emissions during the construction process. It is suggested that proactive actions should be taken at the design stage to unleash the potential of prefabrication in construction.


Author(s):  
Raja Khan Mohammed Gopang ◽  
◽  
Qadir Buxalias Imran ◽  
Sasitharan Nagapan ◽  
◽  
...  

Railway construction industry has devoted vast amount of resources into advancing the management and technology of railway construction, yet most project in this industry often failed to comply with the set deadlines and budget limits. This study was conducted to recognize the critical factors that are causing delays in the construction of Riyadh Metro project, Saudi Arabia. From a thorough literature review, thirty-six (36) factors causing delays were identified which were then distributed to qualified industry experts in a survey questionnaire. A total of 105 respondents were gathered during the data collection. The datawas then evaluated statistically by utilizing different calculation tools that are frequency adjusted importance index for the delay factor ranking, and Spearman's correlation coefficient for the link between two different set of data. The result of this research identified the top five main delay factors to the railway construction projects which are “Client's decision-making process and changes in control procedures”, “Design Errors (including ambiguities and discrepancies of details/specifications)”, “Labor skills level”, “Design changes by Client or Consultant” and lastly, “Issues regarding permissions/ approvals from other stakeholders”.Finally, this study is hoped to help the railway construction industry in bettering itself by highlighting which issues should be focused on to counter the delays and reduce downtimes.


2012 ◽  
Vol 174-177 ◽  
pp. 2768-2773 ◽  
Author(s):  
M. Paranthaman Venkatesh ◽  
S. Muthalvan Renuka ◽  
C. Umarani

Delays in a construction project can be regarded as a failure. This paper aims to investigate the causes of delay in Indian construction projects undertaken by private, government and nongovernmental organizations. In view of this 45 causes of delay were identified and developed the questionnaire for the quantitative confirmation of the most causes of delay. Consequently the questionnaire was distributed to construction professionals like Managers, Engineers and others. Subsequently the collected data was analyzed using statistical tool and the factors were measured and ranked under each group by importance index for various construction professionals. The results suggest that delays are mainly due to shortage of labours, shortage of construction materials and extra works (rework and change orders). The resources like manpower and materials are having highest contribution of about 24% compared to other sources. However this paper presents recommendations for a better project management techniques & procedures which can be adopted during conceptual & detailed planning phases of the project in order to minimize the construction delay.


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