Construction Management

Results indicated that WPB can be suitably used as a modifier for asphalt mixes as a part of sustainable management of plastic waste as well as for improved performance of asphalt mix. WPB content of 5.0 % by weight of OBC is recommended as the optimum WPB content for the improvement of performance of asphalt mix. Asphalt mix modified with 5.0 % WPB by OBC weight has higher stability value compared to the conventional asphalt mix. Asphalt mix modified with higher percentages of WPB exhibit lower bulk density, higher flow and higher air voids.

Design errors are claimed to account for 26% of the cost of defects, these in turn are stated to encompass 2-9% of production cost for building and constructions. Lack of knowledge and information has been identified as a major reasons for design errors. Recently Building Information Modelling (BIM) has been considered as a mean for reducing design errors. However, limited research has been conducted on the role of BIM as a means for transfer and sharing knowledge in order to reduce design errors. The aim of the paper is to analyse BIM's role of facilitating knowledge and expertise sharing in order to prevent design errors. The aim is achieved by analysing a case study of design errors in a construction project. By drawing on the concept of boundary object it is confirmed that BIM can serve a mean for preventing design errors by facilitating knowledge and expertise sharing, across discipline, time and space, and professional boundaries. Depending the kind of boundary knowledge and expertise should be shared across, different challenges emerge in organizing the knowledge and expertise sharing

In the 1980s an innovative concrete footing system was designed, tested, developed and constructed to address the problem of high variability in onsite materials management. The need to improve reliability in housing concrete footings was directly related to a business imperative. At the time the state manager of a large national housing developer was exploring ways to increase revenues through developing efficient on-site materials management. The genesis of the solution was borrowed and adapted from other situations. The human story of the creation, development and adaptation journey of the innovation had not been uncovered although the technical story was well documented. The Australian Housing Supply Chain Alliance commissioned a study so that lessons could be learned about the pathway for highly innovative firms seeking to explore and commercialise novel ideas. Eight detailed semi-structured interviews with ten participants from seven organisations were conducted combined with document analysis from organisational records and court reports. A narrative analysis was used to map fifty one stories from the ten key protagonists against the agenda setting, matching, redefining and routinising innovation process framework. Contributions of intellectual, social and culture capital were identified across the collaborating organisations clarify the innovator group capability. This paper focussed on the role of intellectual capital for the successful implementation of an innovative housing construction system. Intellectual capital was a very important theme arising from this study including sub themes; knowledge domains, like-mindedness, collective contributions, re-strategising and adaptability, formalisation and ownership of intellectual property, patents and disputes, demonstration of credibility and building of reputation through various artefacts.

IBS precast concrete is construction system which is meant to improve the conventional construction process. However IBS precast concrete projects are suffering from serious problems such as cost overrun, delays and less quality of the end product. The absence of coordination is perceived as the reason for this issue. The purpose of this paper is to review the significance of coordination for IBS precast concrete in the construction industry. It if found that the fragmentation which occurs in the construction industry requires continuity of coordination due to the construction activities are intertwined in nature. Coordination is designated to assist stakeholders in completing and complementing each other with the paramount focus of achieving the objective. Proper coordination is required in delivering the desired construction product at the ideal time, cost and quality. As for the findings, the significance of coordination for IBS precast concrete can be seen through the precast concrete construction phases which consist of planning; design; manufacturing; transportation and installation/construction. These phases are meant to complement construction process with the purpose to reduce issues of fragmentation and enhance IBS precast concrete project delivery.

This paper presents the accuracy of preliminary cost estimates prepared by Public Works Department (PWD), which is the largest public construction management in Malaysia. It attempts to understand the Quantity Surveyors' (QS) estimation accuracy in relation to public projects. This study analyses 83 projects of estimates and tender bids. The analysis includes three (3) estimating targets i.e. lowest bid, accepted bid and mean of the bids. To broaden the study, 344 QS involved in the procurement answered the questionnaires. Linear multiple regression analysis on project characteristics shows that project size, number of bidders, location and type of schools affect the bias. Contract period affects the consistency. The use of mean of the bids is the best-fit target to explain the bias in terms of adjusted R 2 . The accuracy may improve if sufficient design information is available, proper cost planning and improving the application of historical cost data. As an alternative, the phenomenon of overestimation is resulted from government directive instruction, which could challenge the rational of accurate estimate.

This paper describes a research project, aimed at developing a system to integrate RFID-based materials management with resources modelling in project management to improve on-site materials tracking and inventory management processes. In order to develop the system, a comprehensive literature review and exploratory case studies were conducted to investigate current practices, problems, implementation of ICT and potential use of emerging technologies (such as RFID and wireless technologies) in overcoming the logistical difficulties associated with materials management. An initial assessment revealed that there is a potential to improve the tracking and management of materials using modern ICT, thus will enhance the operational efficiency of the project delivery process. Moreover, sophisticated technologies such as wireless systems and tagging are not generally used to overcome human error in materials identification and the space constraints inherent in many projects. This paper concludes the finding from case studies for developing a real-time materials tracking framework to support construction professional in handling materials more effectively.

: Most introductory discussions of Agile software development have focused on team management concepts and the implications of the Agile Manifesto for a single, small team. The focus now includes scaling these concepts for a variety of applications. The context in which Agile methods are employed drives important choices for how the work is done. Published frameworks and commercial training available in the market offer a variety of solutions for scaling Agile. This report addresses what is meant by scaling, contextual drivers for implementation choices, and the frame-works available for use today.

Lean Production has been studied for over 20 years, and for many the term is still illdefined. Our first hypothesis suggests that there are many meanings for Lean when applied to Construction. Our second hypothesis suggests that Lean Construction started not from industry but from a mix of academics and consultants (with strong links to academia) working to translate Lean concepts to construction. We believe that both play a major role in bridging the gap between the theories related to Lean Construction and their implementation. Finally, we have encountered examples of companies and professionals who are eager to benefit from the alleged benefits of Lean Production but few are willing to spend the time and effort necessary to learn it. Our third hypothesis suggests that without a sustained effort to engage people in meaningful learning experiences Lean Construction may be viewed as a fad in the construction industry. We searched the literature and looked for cases with different approaches used to disseminate Lean Production and have found evidence that supports the hypotheses proposed. The paper aims to discuss how lean production transitioned to construction and what researchers and practitioners might do to sustain learning and promote change throughout the industry.

Work structuring is the breakdown of both product and process into chunks, sequences and assignments to make work flow smoother and with less variability, in turn reducing waste and increasing value. Work-structuring decisions should include tolerance considerations. and Milberg et al ( ) illustrated how tolerancerelated problems that interrupt workflow generate waste. Tolerance accumulation is often ignored in design, resulting in unanticipated tolerance problems. Tolerance accumulation is dependent not only on tolerance allocation but also on assembly sequence and interface (connection) design, which are functions of work-structuring decisions. This paper discusses tools and techniques used in evaluating tolerance accumulation and process capabilities during detailed design in order to make work-structuring decisions, as well as how tolerance management should be integrated into work structuring.

Work structuring is the breakdown of both product and process into chunks, sequences and assignments to make work flow smoother and with less variability, in turn reducing waste and increasing value. Work-structuring decisions should include tolerance considerations. Tsao et al (2000) and Milberg et al (2001) illustrated how tolerancerelated problems that interrupt workflow generate waste. Tolerance accumulation is often ignored in design, resulting in unanticipated tolerance problems. Tolerance accumulation is dependent not only on tolerance allocation but also on assembly sequence and interface (connection) design, which are functions of work-structuring decisions. This paper discusses tools and techniques used in evaluating tolerance accumulation and process capabilities during detailed design in order to make work-structuring decisions, as well as how tolerance management should be integrated into work structuring.

Lean Production has been studied for over 20 years, and for many the term is still illdefined. Our first hypothesis suggests that there are many meanings for Lean when applied to Construction. Our second hypothesis suggests that Lean Construction started not from industry but from a mix of academics and consultants (with strong links to academia) working to translate Lean concepts to construction. We believe that both play a major role in bridging the gap between the theories related to Lean Construction and their implementation. Finally, we have encountered examples of companies and professionals who are eager to benefit from the alleged benefits of Lean Production but few are willing to spend the time and effort necessary to learn it. Our third hypothesis suggests that without a sustained effort to engage people in meaningful learning experiences Lean Construction may be viewed as a fad in the construction industry. We searched the literature and looked for cases with different approaches used to disseminate Lean Production and have found evidence that supports the hypotheses proposed. The paper aims to discuss how lean production transitioned to construction and what researchers and practitioners might do to sustain learning and promote change throughout the industry.

In a quest for the safe and sustainable delivery of built environment projects in South Africa, this study explored intelligent wearable technologies (IWTs). A post-positivism philosophical stance was adopted by surveying 165 built environment experts. The technology-organisation-environment (T-O-E) framework was also employed in understanding the critical factors influencing the use of IWTs in the study area. Data analyses used mean scores, the Kruskal-Wallis H-test, confirmatory factor analysis, and structural equation modelling (SEM) with appropriate model fit indices. It was found that, albeit at a slow pace, IWTs such as smart safety vests embedded with indoor GPS/sensors, smartwatches, and smart safety helmets are gradually gaining popularity within the South African built environment. SEM revealed that while all the assessed T-O-E factors are important to the increased use of IWTs within the study area, the environment-and technology-related factors will significantly impact how individuals and organisations use these beneficial wearable technologies. This study contributes to the existing discourse on intelligent technologies for the safety of the built environment workforce from the South African perspective, where such studies have received less attention.

Las plantas del género Bambusa han enriquecido nuestra vida en múltiples maneras. Sus brotes comestibles presentan características sensoriales especiales para la cultura oriental, y sus hojas son materia prima para numerosos productos como alimentos, medicamentos y cosméticos. Algunos compuestos aislados de las hojas de bambú presentan alta actividad antioxidante y baja toxicidad, por lo cual se utilizan actualmente como aditivos en la producción de alimentos funcionales. En nuestra cultura sus tallos, usados en el pasado para hacer andamios, siguen siendo utilizados en construcción, en muebles y manualidades. Cuando el bambú se carboniza a altas temperaturas, se convierte en un tipo de carbón altamente poroso, que puede desodorizar, desinfectar, purificar, absorber la humedad, e inclusive bloquear las ondas electromagnéticas. Las fábricas japonesas comenzaron a producir el carbón de bambú hace más de una década. En el proceso de carbonización, también se obtiene otro producto secundario, el vinagre de bambú, que contiene compuestos con actividad desinfectante, antioxidante y estimulante del crecimiento foliar. En este artículo se presenta una documentación de los usos y las perspectivas de obtención de productos de alto valor agregado, con aplicaciones farmacéuticas, cosméticas y alimentarias, obtenidos de la transformación de bambúes, así como del valor económico y comercial de las plantas del género Bambusa, especialmente de la Guadua angustifolia kunth en Colombia. Palabras clave: Bambusa, bambú como alimento, hojas de bambú, vinagre de bambú, carbón de bambú, Guadua angustifolia Kunth.

Rework is a persistent challenge in construction projects, significantly affecting project performance and remaining a major focus for research. The problem addressed in this study is the lack of a systematic framework for identifying and categorizing the underlying causes of rework, which has led to inconsistent strategies for managing it in the construction industry. Effectively managing rework poses challenges due to the ever-evolving nature of construction activities. A logical approach to tackling this problem involves pinpointing the root causes of rework. This study seeks to identify the underlying causes from the perspectives of clients, consultants, and contractors, facilitating the development of effective strategies for managing rework. The methodology used employs a comprehensive literature review, semistructured interviews, and the Delphi technique to identify 43 rework causes, which are categorized into four distinct groups. Fifteen Delphi panel members were selected based on specific criteria. The collected data were subjected to normality and reliability testing, followed by analysis using Spearman's correlation coefficient, score percentage, and the ratio of the mean to the standard deviation to determine whether to proceed with the Delphi method. Consensus among the panelists was reached after the second round as measured using nonparametric statistical tests. Additionally, the inter-rater agreement (IRA) was assessed, and the causes of rework were ranked using the sum rank weighting method. This research is crucial because it highlights less-explored causes of rework, such as communication breakdowns between stakeholders, inadequate coordination during project planning, and errors in client specifications. By examining these causes from the perspectives of clients, consultants, and contractors, this study underscores the significance of these identified issues and contributes to bridging a gap in construction management research.

The purpose of this research is to present a view of the application of artificial intelligence and its
effects on library services. Artificial intelligence is one of the important modern technologies that have appeared
in recent years and have shaped important changes in library work. It is believed that the application of artificial
intelligence in the work of libraries will offer libraries a new service. This study describes the role artificial
intelligence, analyses the advantages and disadvantages of artificial intelligence in library services and highlight
the challenges in implementing of artificial intelligence in library.

This study presents the dark side of "unethical practices" in construction projects in Egypt, which impact the construction industry's development. It also identifies the project parties' unethical practices in funded projects and the Technical Audit's role in fighting them. A mixed methodology was used for collecting and analyzing quantitative and qualitative data. The study results indicated the owner's and bidder's unethical practices were Disclaim liability for nominated subcontractor mistakes and submitting an unbalanced bid, respectively. Also, the procedure militating against the practices was adopting and applying the technical audit concept to governmental projects. Separate analyses revealed differing viewpoints among consultants, owners, and contractors. The study contributes to the creation of honest competition to develop the construction industry, reducing public money losses, and evaluating competitors on a stable and sound basis. Also, b...

The traditional decision-making process in construction is still driven by factors such as cost and time, not adequately addressing indicators to control their environmental impacts. So, how to improve environmental communication to incorporate sustainable building practices. The incorporation of environmental indicators may enlarge the scope of construction management tools. In the case of cost databases, widely used in the construction sector, this action can contribute to the communication and dissemination of environmental practices. This paper mapped 24 indicators from construction cost databases to assess their ability to communicate and disseminate environmental information. The research comprised: (a) a review of the use of cost bases in the environmental study, (b) identification of the most cited bases in 27 Brazilian civil engineering courses, and (c) analysis of the selected databases through of the assessment matrix, it crosses cost data versus environmental information...

Megaprojects present significant economic risks to their financiers and sponsors. Factors such as inflation, cash flow issues, material and energy price hikes and change in government policies can cause such capital intensive projects to overrun planned budget and schedule allocations. Where the project is a commercial asset, delayed completion time and cost overruns usually have significant impact on the profitability of the project as well as the estimated returns on investment over the operational phase of the project. Understanding the dynamics of specific risks can thus be very crucial in designing containment measures to deal with their likely impact on the project. Using a case-study of the Edinburgh Trams project in Scotland, the dynamics of identified economic risks in transportation megaprojects is presented. Through the combination of interviews, questionnaires and non-participant observation, different economic risk factors were first identified. The identified factors w...

The success of projects is measured by the parameters of time, cost and quality. However, it is common knowledge in Nigeria that most Heavy Engineering construction projects have not performed well in each of these parameters. Quantity surveyors though present in engineering projects are underutilized in cost and time performance and project delivery process at the pre and post completion stage of the project. This research seeks to appraise the roles and level of involvement of quantity surveyors in heavy engineering projects delivery. A sample survey design was used for this investigation. The population for this study consists of Quantity Surveyors in Enugu and Anambra state. The sample of the study comprises 73 quantity surveyors in Enugu State and Anambra State. Simple random sampling technique was used to draw the sample. The research instrument used for this research is a questionnaire. It was administered using a set of predetermined questions. The data collected were analyzed using both descriptive and inferential statistics. The reliability test for this study was conducted using Cronbach's coefficient Alpha, the alpha value derived from each objective indicates a figure greater than 0.7. The study reveals that quantity surveyors play a multifaceted and crucial role in heavy engineering projects in Southeast Nigeria. Their involvement extends beyond traditional cost management to encompass broader project oversight and value creation. The significant variation in involvement across project types suggests a need for a more standardized approach to QS integration in different heavy engineering contexts.

Scheduling with constrained resources, particularly skilled labor, is a major challenge for almost all construction projects. In the literature, various techniques have been developed to reduce consequent project delay of constrained resources. Most of these techniques assume single-skilled resources and use heuristic rules to decide which activity will receive the resource first and which ones to delay. To improve existing solutions, this paper introduces some modifications to heuristic resource-scheduling solutions, considering multiskilled resources. The proposed approach stores and utilizes information about the resource(s) that can be substituted when there is a shortage in another one. Using this information, less utilized resources can be combined to substitute the shortages in constrained resources during the shortage period, taking into consideration the loss in work productivity. To automate the proposed algorithm, a macroprogram has been written on a commercial scheduling software. An example application is presented to show the improved results of the proposed approach over existing heuristics. The use of the proposed approach as a better resource management tool within the construction industry is then discussed.

Rework has been a primary cause of cost and schedule overruns in large construction projects. While several research efforts have analyzed the causes and effects of rework and provided guidelines to reduce rework, almost no research exists to analyze the impact of rework timing and quantity on schedule delays and to support decisions on cost effective recovery. This research presents a quantitative mechanism for schedule analysis considering rework. The mechanism has three aspects: (1) a new schedule representation of rework magnitude as negative percentage complete for affected activities, documented on the specific date on which the rework is detected; (2) a modified daily-windows delay analysis to apportion project delays among the responsible parties; and (3) an optimization technique for determining the least costly corrective action strategy that recovers project delays. The proposed approach is applied to a case study to demonstrate its ability to consider rework impact, in combination with other progress events by other project parties. This research offers an innovative quantitative approach to consider rework timing and amount in delay analysis and corrective action optimization.

Detailed as-built information is essential for progress tracking, corrective actions, and schedule analysis. As-built documentation, however, has mainly been a manual process that is time-consuming and error-prone. This paper proposes a low-cost framework that utilizes prevailing communication tools (email) to develop a project-wide system for progress tracking and bidirectional communication between project participants and head office. The framework integrates three main components: email forms for site data collection; customized scheduling application; and customized email application. In the schedule, the activities automatically initiate email requests for as-built information using an email form that has a checklist of possible site events and enables supervisors to attach notes and any requests for information. On a daily basis, the system automatically reads the supervisors' response emails and updates the schedule with all recorded as-built details. The paper discusses the development of a prototype system and demonstrates its usefulness on a small bridge-pier foundation example.

Those respondents who did not file claims said that that it was useless to file claims as laws and procedures were too complex, and the government did not compensate. 45 percent of the clients reported having received one or more claims. (%) All Respondents 54 38 Clients 63 18 Contractors -overall 49 42 Contractors C1 59 33 Consultants 58 37

The oil price drop has significantly affected complex construction projects in the United Arab Emirates. After this crisis, adversarial relationships and trust issues between subcontractors and main contractors have increased, therefore, it has become necessary to rebuild trust between them. This dissertation has developed a framework to effectively rebuilding trust between the subcontractors and main contractors throughout the project life cycle.

Pekerjaan ulang (rework) pada proyek konstruksi diakibatkan karena kesalahan dalam perencanaan, kesalahan prosedur kerja, kurangnya pengawasan sehingga hasil pekerjaan tidak sesuai dengan desain awal konstruksi dan dapat mengakibatkan beberapa kerugian, seperti biaya, waktu, kualitas pekerjaan, dan menurunnya motivasi kerja. Penelitian ini bermaksud untuk mengevaluasi rework pada proyek konstruksi gedung di Semarang dengan tujuan untuk mengidentifikasi faktor-faktor penyebab rework, mengetahui besarnya risiko dan dampak yang diakibatkan rework, mengetahui pihak-pihak yang bertanggung jawab terjadinya rework dan solusi meminimalisirnya. Metode penumpulan data dilakukan dengan melakukan wawancara awal kepada 6 perusahaan konstruksi di Semarang dan menyebarkan kuesioner kepada 60 responden, tetapi yang kembali sebanyak 41 kuesioner. Kerangka manajemen risiko digunakan untuk mengetahui dampak rework pada proyek konstruksi dari segi waktu dan biaya dengan skala 1-5. Hasil penelitian menunjukkan bahwa faktor paling dominan penyebab rework adalah faktor manajerial. Jenis pekerjaan yang sering mengalami rework adalah pekerjaan finishing dan pelengkap. Dampak terbesar dari pekerjaan rework pada pekerjaan finishing dan pelengkap, dengan dampak terhadap waktu sebesar 3.65 dan dampak terhadap biaya sebesar 3.21. Pihak yang bertanggung jawab apabila rework terjadi secara keseluruhan menurut perspektif responden adalah pihak kontraktor pelaksana sebesar 79.16 %. Solusi meminimalisir rework yang efektif adalah dengan meningkatkan komunikasi, pengawasan di lapangan, meningkatkan teamwork antar pihak.

One of the problems that often arise in housing projects is time delay, which may results in an increase in construction costs. This delay can be attributed to deficiencies in site management, ineffective communication strategies, and a lack of coordination between stakeholders. Lean construction is a method that can be used to improve the construction management system. The basic concept of this method is to reduce activities that do not add value and increase the value. The purpose of this study is to explore the implementation of lean construction principles at housing projects in order to improve project management so that delays can be minimized. The objectives of this research are; (1) to identify waste in the construction process, (2) to find barriers in applying lean construction principles, and (3) to recommend strategies for implementing lean construction principles in housing projects. A comprehensive literature review is conducted to achieve the aims and objectives of this study. The results show that the implementation of lean construction principles in housing projects can provide several benefits, such as minimizing waste, reducing construction time, improving building quality, and providing better benefits to contractors.

Purpose: Contractor Development Programmes (CDPs) are aimed at creating an enabling environment for the survival and sustainability of Small, Medium and Micro Enterprises (SMMEs) contractors. Albeit, literature informs that the opinions of beneficiaries of these CDPs have not been adequately evaluated to access the impact of these CDPs. The purpose of this study was to establish the extent to which these CDPs have helped to improve contractors' management skills and also the extent to which the CDPs have ensured contractors' upgrade in CIDB registration status. Design/Methodology: A questionnaire survey, made up of close-ended as well as openended questions were administered to the respondents to establish their views on the achievements of the CDPs, the statistical programme SPSS was used to analyse the data, Cronbach Alpha Coefficient was used to test the reliability of the data collected. And the correlation between the CDPs and their intended outcomes were analysed using the T-test. The results from the research showed that the CDPs were achieving their objectives of improving of management skills and ensuring contractor upgrade in CIDB registration status. The important observation was that continuous contractor mentorship (CCM) must be made an integral part of every successful CDP. Originality/value: This study has revealed that to improve the benefits of CDPs, all implementing stakeholders must introduce CCM into their programmes instead of the once of mentorship programmes that currently exist. The research focused on contractors as a whole and did not separate them into their fields of specialities. The questionnaire survey was conducted in only Gauteng Province of South Africa and not the entire country. The study will assist in guiding CDP stakeholders of the need to modify the programmes to meet the beneficiaries' objectives.

Pelaksanaan proyek konstruksi bangunan gedung  yang mundur dari waktu yang telah ditentukan, ini adalah hal yang paling tidak disukai oleh semua pihak, apalagi pelaksanaan proyek pemerintah, dalam menghadapi pihak pemeriksa yaitu BPK atau BPKP akan menjadi temuan atau catatan negatif dan  tidak baik bagi semua yang terlibat dalam penyelesaian proyek. Tujuan Penelitian ini adalah untuk mengetahui faktor utama penyebab keterlambatan pelaksanaan proyek konstruksi bangunan gedung, ditinjau dari penggunaan sumber daya material, sumber daya peralatan, sumber daya keuangan, sumber daya manusia dan metode kerja. Metode penelitian, jenis penelitian ini adalah penelitian deskriptif, penelitian deskriptif  bertujuan untuk menggambarkan sesutu hal yang ingin dipahami, penelitian deskriptif dapat mengetahui gambaran yang sesungguhnya, analisis data menggunakan program AHP EXPERT CHOICE , prosedur penyelesaian masalah dengan menggunakan metode AHP adalah membentuk konstruksi hirarki. Hasil peneli...

Background: Research institutions and donor organizations are giving growing attention to how research evidence is communicated to influence policy. In the area of sexual and reproductive health (SRH) and HIV there is less weight given to understanding how evidence is successfully translated into practice. Policy issues in SRH can be controversial, influenced by political factors and shaped by context such as religion, ethnicity, gender and sexuality. Methods: The case-studies presented in this paper analyse findings from SRH/HIV research programmes in sub-Saharan Africa: 1) Maternal syphilis screening in Ghana, 2) Legislative change for sexual violence survivors In Ghana, 3) Male circumcision policy in South Africa, and 4) Male circumcision policy in Tanzania. Our analysis draws on two frameworks, Sumner et al's synthesis approach and Nutley's research use continuum. Results: The analysis emphasises the relationships and communications involved in using research to influence policy and practice and recognises a distinction whereby practice is not necessarily influenced as a result of policy changeespecially in SRHwhere there are complex interactions between policy actors. Both frameworks demonstrate how policy networks, partnership and advocacy are critical in shaping the extent to which research is used and the importance of on-going and continuous links between a range of actors to maximize research impact on policy uptake and implementation. The case-studies illustrate the importance of long-term engagement between researchers and policy makers and how to use evidence to develop policies which are sensitive to context: political, cultural and practical.

Many large scale construction projects (LSPs) are designed in a collaboration between famous international architects and local design firms. Design management usually evolves as a tool at the design stage for designers and design solution. One of the special characteristics of the Korean construction environment places a duty and responsibility on the contractor to coordinate and check design information. Hence the contractor must manage and integrate diverse design information into the production process. This research considers how the design management diagram (DMD) can help as a part of the system at the pre-production stage of LSPs in Korea 2 . The pre-production stage receives insufficient attention from the research community from the perspective of design management; it is a complex process involving interdependence, risk, and uncertainty. Through the application of a DMD from the pre-production stage, the contractor can predict and manage the design-related uncertainty dur...

Specification of materials for concrete repair is a complex task requiring broad knowledge of materials science, engineering and construction practice. In this paper, several issues important for proper design and implementation of concrete repair are discussed. It is stressed that the specification documentation is not a formality, but rather a critically important engineering step in view of fulfilling the durability and service life requirements.

The effectiveness of labor productivity determines whether building projects are successful locally and internationally. It has proven difficult to increase Construction Project Labor Productivity (CPLP) in both developed and developing countries. This has been largely due to lack of standardized metrics, inadequacy of CPLP management models, lack of CPLP improvement frameworks and complexity of the concept. Without the aforementioned, it becomes difficult or impossible for consumers and suppliers to estimate the precise cost of a project, which can cause project stalling, cost escalation, profit loss, and a loss of confidence in the construction sector. This study was a quantitative cross-sectional survey of a sample of 129 ongoing building projects in Nairobi City County. It measures and relates CPLP and its determinants, develops a CPLP predictive model and synthesizes a framework for enhancing CPLP. The study establishes that two attributes, Project Information Flow (PIF) and Project Materials Flow (PMF), account for 83.5% of the variability of CPLP. Finally, it sheds light on the use of the framework for CPLP enhancement. The study concludes that better managing the PIF and PMF may significantly enhance construction project labor productivity.

Dual-purpose underground retention systems are a sustainable idea for today's water management. They solve the problems of not having enough water and managing stormwater. These systems collect, store, and reuse rainwater for things like irrigation, landscaping and in industries. With advanced technologies such as smart monitoring and good filtration, they improve operations and keep water good for reuse. These systems are very important in cities. They help prevent floods, refill groundwater, and match sustainability goals. High installation costs, rules, and upkeep slow down their use. Removing these barriers with money help, new rules and better technology could help use these systems more in cities and the countryside, aiding both sustainability and climate defenses.

İnşaat sektörü hem ulusal hem küresel düzeyde temel sektörlerden bir tanesini teşkil etmektedir. Ülkeler gelişmişlik seviyelerine göre, gelişmiş, gelişmekte olan ve gelişmemiş ülkeler olarak tasnif edilmektedirler. Gelişmişlik seviye ve sınıf tespiti ise altyapı kurulumunun ne aşamada olduğu ile ilgilidir. Dolayısı ile altyapı yatırımlarının durumu yol göstermektedir. Altyapı yatırımlarında birincil unsur ise inşaat sektörü ve inşaat mühendisliği olmaktadır. Altyapı; ulaşım, telefon, internet, su, atık su, doğalgaz ve elektrik altyapısı gibi temel bileşenlerden meydana gelmektedir. Yine altyapı eğitim, sağlık, güvenlik gibi temel unsurlarla ilintilidir. Altyapı yatırımlarında ulaştırma yatırımları önemli bir paya sahiptir. Bu durum özellikle de Türkiye'de daha da belirginleşmektedir. Bu çalışmada ulaştırma başta olmak üzere büyük altyapı yatırımlarının ülke gelişmişlik düzeylerine göre etkisi ele alınmıştır. Bu çerçevede maliyet hesap esasları incelenmiştir. İlk olarak altyapı yatırımının gelişmişliğe etkisi irdelenmiş olup ardından altyapı maliyet hesaplamaları paylaşılmıştır. Sonrasında ise proje yönetimi ve planlaması ortaya konulmuş olup maliyet çeşitleri derinlemesine değerlendirilmiştir. Bu kapsamda da sonuç ve öneriler paylaşılmıştır.

According to the data from the Central Bureau of Statistics, building construction in the Special Capital Region of Jakarta Province belongs to a construction cluster with the highest realization value compared to civil and other construction. All construction stakeholders in Indonesia have expectations for the achievement of cost and time. In the project implementation, however, there are often quite high obstacles caused by the less-than-optimal management of the project stakeholders themselves, resulting in the disruption of project implementation. This study aims to determine how significant the influence of each stakeholder management factor on project performance is. In addition, this study is also expected to assist in making a good and appropriate stakeholder relationship strategy so that the achievement of project performance can be improved. Ninety-six respondents participated in this study and their responses were analyzed using SEM-PLS. The findings of this study reveale...

Mestre pelo programa de Pós-Graduação em Contabilidade na Universidade Federal de Santa Catarina -UFSC RESUMO O objetivo deste artigo é identificar o comportamento dos custos das empresas listadas no segmento de fios e tecidos da BM&FBOVESPA entre 2009 e 2015, período que compreende dois diferentes cenários, antes e após a desoneração. Admite-se como hipótese da pesquisa a redução dos custos no período posterior a desoneração da folha de pagamento. Em termos metodológicos, utiliza-se a linha de tendência e o Teste t, no sentido de verificar a existência de diferenças de médias dos índices antes e após a desoneração. Os resultados obtidos não fornecem evidência para rejeitar a hipótese nula, qual seja a de que a média da relação das variáveis Custo dos Produtos Vendidos/Receita Líquida de Vendas (CPV/RLV), Custos Totais/Receita Líquida de Vendas (CT/RLV) e Lucro Líquido/Receita Líquida de Vendas FERRARI, M. J. et al. Desoneração da folha de pagamento e comportamento dos custos das empresas listadas no segmento de fios e tecidos da BM&FBovespa. Revista Unemat de Contabilidade, 2017. v. 6, n. 11. 132 (LL/RLV) não se altera com a medida, o que não permite afirmar que a desoneração da folha de pagamento impactou nos custos, nas despesas e na margem de lucro das empresas analisadas. Palavras-chave: Comportamento dos custos. Desoneração da folha de pagamento. Segmento de fios e tecidos.

Construction project involves huge capital flow (materials, machines, manpower, management, finance) from inception to completion and handover. Bank consolidation will enhance synergy; improve efficiency through cost reduction revenue in the long- run, reduction in the industry‟s risk by eliminating weak bank and acquiring of smaller ones by the bigger and stronger bankers as well as creating opportunities for greater diversification and financial intermediation. This paper aimed at assessing post consolidation effect of the banking sector recapitalization on construction industry and the major objectives of the study are: assessing the volume of credit facilities given to building contractors by commercial banks the trend in the interest rates charged by commercial banks on credit facilities allocated to building and civil engineering contractors and to evaluate whether building and civil engineering contractors now have better access to credit facilities. This research is purposiv...

In subsequent years, the construction sector has been recommended to expand the use of off-site technology, or ‘new construction approaches,' to tackle the ‘productivity puzzle’ and building shortage supply. Throughout the industrial sector, off-site construction seems to have been sluggish, amidst a very well-rehearsed advantage of construction innovations. This document offers valuable insights that looked at property developers' approaches and procedures concerning the utilization of offsite construction (offsite-MMC). A study of randomly selected 60 companies out of the top 150 property developers throughout the United Kingdom and a set of questionnaires and interviews have been used to expose the degree to which offsite construction affects construction productivity.
The observations reveal that the existing utilization of offsite-MMC in major property developers is small and that the frequency is essential to rise, considering the constraints to increasing productivity, time, cost, and health and wellbeing. The study also found that the adoption of MMC technology increases productivity and efficiency in construction projects. Nonetheless, offsite-MMC's broader usage is hindered by initial capital cost, poor system interoperability, lack of manufacturing capacity, lack of economies of scale, inflexibility to design changes, and inorganized industry structure. The report offers a collection of approaches to enhance the use offsite-MMC in the UK. This is anticipated that would help to bring about an increase in productivity in the United Kingdom's construction sector.

This paper aims at developing an integrated cloud-based internet of things (IoT) platform for asset management of elevated metro rail project. This platform will provide information about the various assets of the project and its location in real time which will be helpful in better management of assets. Furthermore, prototype of the platform is developed in which sensors are embedded on assets for traceability and its information can be directly accessed by stakeholders through this web based application. This platform will help reduce the amount of errors in information management. Also this would enhance collaboration amongst the various stakeholders of the project. It has been observed that by using this platform the paper works pertaining to the record keeping during the process of segment production and segment transportation can be reduced by about 30%. Furthermore, the cycle time for casting and transportation of each precast segment can be reduced by about 17% and 50% respectively. This indicates that there is an improvement of production efficiency. The results of the prototype conclude that the platform is feasible for application at construction sites for real time monitoring and management of assets.

Industrial Revolution 4.0 (IR 4.0) is a high technology digitization to enhance communication networks, organization and management, as well as production and processes across industries. The rate of changes and its convergence towards IR 4.0 would require new talent, knowledge and skills for current and future generations to retain and generate new workforces. As technology in the construction industry is evolving at a fast pace, the current teaching-learning syllabus and pedagogy should transform accordingly to accommodate future job requirements. Due to the rawness of this concept in the construction industry and to its education, this study aims to explore the state of the art as well as the state of practice of IR 4.0 and Education 4.0 from the perspective of construction engineering. Therefore, a systematic review was conducted to analyze the relevant research papers related to IR 4.0 and Education 4.0 within the Scopus database, ranging from year 2011 until present. A bibliom...

PURPOSEThis paper critically analyzes and assesses the various factors of occupational health and safety (OHS), and elucidate the factors affecting construction workers’ behavior in different construction projects of Oman. It aims to create Occupational Health and Safety awareness in construction workers working for Social Entrepreneurs in Oman.DESIGN/METHODOLOGY/APPROACHTwo hundred and fifty-two construction workers from various projects were selected based on a simple random sampling basis, and the data was collected through a well-defined questionnaire.FINDINGSThe study shows that workers favor communication in the improvement of workers’ behavior in the industrial and infrastructure construction projects.Education and training help in capacity building and skills development and contributes towards sustainable positive OHS result in petrochemical construction projects. Management commitment plays a major part to maintain a sustained hazard free environment in building constructi...