scholarly journals Negative Effects of Design-Bid-Build Procurement on Construction Projects

2020 ◽  
Author(s):  
Sergei Kortenko ◽  
Lauri Koskela ◽  
Patricia Tzortzopoulos ◽  
Shervin Haghsheno
Keyword(s):  
Construction Projects ◽  
Negative Effects ◽  
Design Bid Build

scholarly journals Applying analytical network process to the selection of financing method for abandoned construction projects in Iraq

2021 ◽  
Vol 14 (2) ◽  
pp. 62-70
Author(s):  
Huda Yaseen ◽  
Hafeth I. Naji
Keyword(s):  
Construction Industry ◽  
Construction Projects ◽  
Analytic Network Process ◽  
Construction Sector ◽  
Negative Effects ◽  
Analytical Network Process ◽  
Multiple Risks ◽  
Final Weight ◽  
Network Process ◽  
Selection Of

Construction projects are of a special nature affected by many factors, which makes them exposed to multiple risks that may lead to the abandonment of projects. Recently, the Iraqi construction sector is facing a number of problems. Abandoned construction projects are one of the most common and dangerous problems in the construction industry in Iraq, with their negative effects on stakeholders, the economy, and the environment due to the lack of sufficient financial and administrative capabilities to complete construction projects, which is reflected in exceeding the time limit for the completion of projects. The aim of this research is to use the analytic network process (ANP) technique to choose the best form of Public-Private Partnership (PPP) contracts to fund abandoned projects in Iraq. using a questionnaire survey to determine the most criteria and alternatives for selecting appropriate financing for the abandoned project. The results shown final weight of the Build-Own-Operate (BOO) contract from ANP is 0.533, which is the best form of PPP contract among the alternatives proposed to fund the project.

scholarly journals Characteristics of Procurement Methods in Malaysia – Comparing Design-Bid-Build, Design-Build and Construction Management

2020 ◽  
Vol 11 (3) ◽  
Author(s):  
Azeanita Suratkon ◽  
◽  
Riduan Yunus ◽  
Rafikullah Deraman ◽  
◽  
...  
Keyword(s):  
Construction Industry ◽  
Construction Management ◽  
Construction Projects ◽  
Building Construction ◽  
Technical Expertise ◽  
Time Cost ◽  
Project Complexity ◽  
Design Build ◽  
Procurement Method ◽  
Design Bid Build

Design-Bid-Build (DBB) or commonly known as Traditional method is the earliest and most prevalent procurement method used in Malaysian construction industry. Design-Build (DB) and Construction Management (CM) procurement methods were later introduced in Malaysia as an endeavour to satisfy and accommodate the increase in project complexity and the need for avoiding drawbacks of the Traditional methods. Each procurement method has different nature and possesses certain characteristics. Therefore, this study was carried out to ascertain and compare the characteristics of these three procurement methods that are implemented in building construction projects in Malaysia. A questionnaire survey was conducted among architects, consultants, contractors and owners or developers to elicit their feedback on the characteristics which were categorised into time, cost, quality, complexity and flexibility, degree of involvement and responsibility allocation and technical expertise. The findings indicated that only DB method almost fulfils all the characteristics under the six categories, whereas, DBB methods garnered agreement only for certain characteristics under time, cost, complexity and flexibility and technical expertise categories. Meanwhile, the only CM method’s characteristics that satisfy agreement from the respondents are the often used of fast track approach and lack of certainty in price. This study concludes that when a procurement method is adopted for a construction project, not all the features or characteristics will turn out as expected. There are many factors that contribute and are influential on the success in procurement methods that are worth for further investigation.

scholarly journals Project failure Indicators: perceptions of Thai and Malaysian engineers

2018 ◽  
Vol 192 ◽  
pp. 02021
Author(s):  
Pittayaporn Gomarn ◽  
Jakrapong Pongpeng
Keyword(s):  
Construction Projects ◽  
Construction Project ◽  
Cost Overrun ◽  
Kuala Lumpur ◽  
Negative Effects ◽  
Project Failure ◽  
Similarities And Differences ◽  
Spss Software ◽  
Supervisory Staff

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.

scholarly journals Effect of Disintegration Times of the Homogeneity of Soil prior to Treatment

2019 ◽  
Vol 9 (22) ◽  
pp. 4791
Author(s):  
Wathiq Al-Jabban ◽  
Jan Laue ◽  
Sven Knutsson ◽  
Nadhir Al-Ansari
Keyword(s):  
Water Content ◽  
Uniform Distribution ◽  
Construction Projects ◽  
Mixing Time ◽  
Soil Improvement ◽  
Natural Soil ◽  
High Plasticity ◽  
Negative Effects ◽  
Disintegration Time ◽  
Soil Particles

This paper presents an experimental study to investigate the effect of various disintegration times on the homogeneity of pre-treated natural soil before mixing with cementitious binders. Various disintegration times were applied, ranging from 10 s to 120 s. Four different soils were used with different characteristics from high, medium and low plasticity properties. Visual and sieving assessment were used to evaluate the best disintegration times to allow for a uniform distribution of water content and small-sized particles that would produce a uniform distribution of the binder around the soil particles. Results showed that a proper mixing time to homogenize and disintegrate the soil prior to treatment depended on several factors: soil type, water content and plasticity properties. For high plasticity soil, the disintegration time should be kept as short as possible. Increasing the disintegration time ha negative effects on the uniformity of distribution of the binder around soil particles. The homogenizing and disintegration time were less important for low plasticity soils with low water content than for medium to high plasticity soils. The findings could assist various construction projects that deal with soil improvement through preparation of soil before adding a cementitious binder to ensure uniformity of distribution of the binder around soil particles and obtain uniform soil–binder mixtures.

scholarly journals COMPARING THE PLANNING AND PERFORMANCE OF DIRECT LABOUR AND DESIGN-BID-BUILD CONSTRUCTION PROJECTS IN NIGERIA / PLANAVIMO IR VEIKLOS EFEKTYVUMO PALYGINIMAS, NIGERIJOS STATYBŲ PROJEKTUOSE NAUDOJANT TIESIOGINĮ DARBĄ IR TAIKANT TRADICINĮ PIRKIMŲ METODĄ

2012 ◽  
Vol 18 (2) ◽  
pp. 184-196 ◽  
Author(s):  
Godwin Iroroakpo Idoro
Keyword(s):  
Construction Projects ◽  
T Test ◽  
Design Stage ◽  
Construction Planning ◽  
Construction Stage ◽  
Cost Overruns ◽  
And Performance ◽  
Design Bid Build ◽  
Design And Construction

This study compares the levels of planning and the outcome of projects procured by direct labour and traditional contract procurement options. For this comparison, a survey of 130 projects was carried out. Data were collected using structured questionnaires and analysed using percentage, mean and t-test. The study discovers that whereas the levels of conception and overall planning done in projects procured by the two options are the same, the levels of design and construction planning done in DBB and DL projects differ. The study also discovers that the time-overruns of projects procured by the two methods differ but their cost-overruns are the same. The study concludes that projects procured by DBB and DL options differ in planning and time-overrun and suggests improved planning at the design stage when DL option is adopted and improved planning at the construction stage when DBB option is adopted. Santrauka Šiame darbe lyginami planavimo lygiai ir projektų rezultatai, kai naudojamas tiesioginis darbas ir taikomas tradicinis pirkimų metodas (projektavimas–konkursas–statyba; angl. Design-Bid-Build, D-B-B). Palyginimui atlikta 130 projektų apklausa. Duomenys surinkti naudojant tam tikros struktūros anketas ir išanalizuoti pagal procentus, vidurkius ir t testą. Atliekant tyrimą nustatyta, kad abiem paslaugų pirkimo atvejais projektų sumanymo etapas ir bendras planavimas yra vienodo lygio, tačiau tradicinį pirkimų metodą pasirinkusiuose projektuose projektavimo ir statybų planavimo etapų lygis skiriasi nuo tiesioginį darbą pasirinkusių projektų etapų lygio. Atliekant tyrimą paaiškėjo, kad abiem atvejais laikas viršijimas skirtingai, tačiau sąnaudos viršijamos vienodai. Daroma išvada, kad projektams taikant skirtingus pirkimo būdus (tradicinį metodą arba tiesioginio darbo variantą) skiriasi planavimas ir vėlavimas; taip pat siūloma, kaip pagerinti projektavimo etapo planavimą, kai naudojamas tiesioginio darbo variantas, ir kaip pagerinti statybų etapo planavimą, kai taikomas tradicinis metodas.

scholarly journals Causes of Rework in Construction Projects in Ukraine

2019 ◽  
Vol 65 (3) ◽  
pp. 61-74
Author(s):  
R. Trach ◽  
K. Pawluk ◽  
M. Lendo-Siwicka
Keyword(s):  
Soviet Union ◽  
Construction Projects ◽  
Significant Decline ◽  
Real Estate Development ◽  
Negative Effects ◽  
Construction Enterprises ◽  
Construction Market ◽  
The Soviet Union ◽  
Political Turmoil

AbstractThe collapse of the Soviet Union was the cause of a significant decline in many economies of the newly created countries. However, many of them, including the Ukrainian economy, are slowly recovering. One of the largest branches of the economy in this country is construction, which, despite political turmoil, is constantly growing, especially in the private real estate development sector. Despite the fact that the construction market is constantly developing, it is limited by the costs of rework and alterations resulting from many reasons. The key negative effects of modifications to the results of the project are exceeding the budget and time of project implementation, dissatisfaction with the project team, violation of contractual requirements and lowering the quality of the final product. Therefore, the purpose of this article was to determine the reasons for the emergence of rework in the in Ukraine by analyzing the results of surveys conducted among construction enterprises.

scholarly journals Negative Effects caused by COVID-19 on Critical Path of Construction Projects

2021 ◽  
Vol 115 ◽  
pp. 03005
Author(s):  
Oliver Haas ◽  
Peter Markovič
Keyword(s):  
Construction Projects ◽  
Critical Path ◽  
Case Law ◽  
Disease Spread ◽  
Negative Effects ◽  
Construction Company ◽  
Force Majeure ◽  
Liquidated Damages ◽  
Management Literature ◽  
Contractual Obligations

Begun in 2020 COVID-19 disease spread all over the globe and negatively affected all areas of human activities and societies inclusive engineering and construction projects. This paper analyses how COVID-19 implications can be used as a general excuse by a construction company to relief from contractual obligations, e.g., liquidated damages. To answer this question, we compared existing case law, previous court decision and project management literature with potential global and force majeure arguments based on COVID-19 cases. Our results showed that a general “free out of jail” card using COVID-19 argument is not applicable and COVID-19 cannot be seen per se as a force majeure in general and for every situation. However, if the effects from COVID-19 implications are beyond the parties’ control and evidence shows that the contractor is actually disrupted and severely delayed the contractor is entitled for an extension of time or a delayed delivery of his performances. The paper concludes among other details that a COVID-19 argument can only be based on existing contractual provisions, accurate records of the as-built situation, proper notices of all kind of impacts and cause-and-effect considerations. Despite of any warning and if a contractor decides to rely on a global COVID-19 argument only it is a very risky endeavor and may backfire on him later on.

The Negative Effects of Mobile ICT on Productivity in Indian Construction Projects

2018 ◽  
pp. 281-287
Author(s):  
Abid Hasan ◽  
Kumar Neeraj Jha ◽  
Raufdeen Rameezdeen ◽  
SeungJun Ahn ◽  
Bassam Baroudi
Keyword(s):  
Construction Projects ◽  
Negative Effects ◽  
Mobile Ict

Status and Psychology of DBB and BOT Construction Project Participants

2011 ◽  
Vol 71-78 ◽  
pp. 160-166
Author(s):  
Wen Hao Leu ◽  
Andrew S Chang
Keyword(s):  
Performance Studies ◽  
Construction Projects ◽  
Construction Work ◽  
Case Study Method ◽  
Delivery Method ◽  
The Status ◽  
Project Participants ◽  
Work Interaction ◽  
Design Bid Build

Adopting the BOT (build-operate-transfer) delivery method for construction projects has brought opportunities for desired performance. Studies have investigated many issues of BOT projects such as concessionaire selection criteria or risk factors, but the soft issue of the status and psychology change of project participants from traditional DBB (design-bid-build) method is not investigated. This research explored the status and psychology of DBB and BOT project participants and drew implication for performance. By using the case study method, this study selected ten projects in which five from DBB and five from BOT methods; interviewed 36 owners, designers, constructors and other participants in 14 times; and analyzed and compared their design and construction work interaction, designer and constructor status, and owner and concessionaire psychology. It is found that for DBB civil projects performance would be stable because of completed design, more cautious owner, and respected designer that is good to performance. For BOT civil projects, performance would vary and the designer and constructor can better cooperate. The flexibility and vitality brought by the BOT mechanism should be better used to create better performance.

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