Construction Supply Chain Management

Efficient supply chain management calls for robust analytical and optimal models to automate its process. Therefore, information technology is an essential ingredient that integrates these tools in supply chain. With the emergence of wireless, the high technologies and the reliability of mobile devices, mobile web services draw a promising horizon facing economic challenges. They offer new personalized services to each actor in the supply chain on their mobile devices at anytime and anywhere. This paper presents a literature review of mobile web service implemented on the industry context based on the supply chain management approach. First, a large definition of mobile web service and some proposal architecture are exposed. Then the paper discuss some generic related work on mobile web service focusing on supply chain management. Finally some challenges on m-service oriented supply chain management are proposed.

The complexity and fragmented nature and the multiple stakeholders in the construction industry often make it difficult to come up with a firm decision regarding sustainable building materials selection. The wrong choice could negatively impact the project objective and performance outcome. This study assessed the critical factor influencing the choice of sustainable building materials (SBM) selection on construction projects in the Southeast geopolitical zone of Nigeria. Data were collected using a well-structured questionnaire, non-probability (purposive and snowball) sampling techniques, and an internet-mediated survey. Data analyses were carried out using the appropriate descriptive and inferential statistical tools and exploratory factor analysis (EFA). The study revealed recycled plastic, natural clay and mud, stone, bricks and tile, cellulose, stray bales, grasses, limestone, and wood timber, are the commonly used sustainable building materials. Also, their level of awareness...

The objective of this study is to understand and evaluate the interactions of the Green Supply Chain Management enablers from a construction project's perspective in Imo State, Nigeria. This paper discusses the mix of practical intuition and determination through an interpretive structural modeling (ISM)-driven methodology. Eight (8) enablers were identified from a literature review, expert consultation, and real-world examples. While Matrice d’Impacts croisesmultipication applique a classement analysis (MICMAC) was used to identify dependence and driving power, it was used as a way to understand the relationship between the enablers. The study found that strong, yet fragile, forces drive GSCM adoption, with enhanced awareness of GSCM, increased market appeal for green construction projects, and government support through incentives and tax rebates.

In recent years, with the increasing level of competition in the global construction market, several research efforts have focused on the application of information technology (IT) as a way to improve the integration process of construction supply chain management (CSCM). Visual representation of the process can provide an effective tool for monitoring resources in the CSCM. In order to support this objective, this paper integrates building information modeling (BIM) and geographic information systems (GIS) into a unique system, which enables keeping track of the supply chain status and provides warning signals to ensure the delivery of materials. First, the proposed methodology is implemented by using BIM due to its capability to accurately provide a detailed takeoff in an early phase of the procurement process. Furthermore, in order to support the wide range of spatial analysis used in the logistics perspective (warehousing and transportation) of the CSCM, GIS is used in the present model. Thus, this paper represents the integrated GIS-BIM model manifesting the flow of materials, availability of resources, and "map" of the respective supply chains visually. A case example is presented to demonstrate the applicability of the developed system. Published by Elsevier B.V.

This study sought to identify constructability tools and techniques deployed by professionals within the industry with a view to improving the performance of construction projects in Nigeria. Fifty (50) questionnaires were administered purposively in public, private construction and contracting organizations in Port-Harcourt, Rivers State, Nigeria. Forty two (42) out of the fifty (50) questionnaires that had complete responses were used for the analyses. The responses were analyzed using both descriptive and inferential statistical tools via SPSS. The findings from the study indicate that a majority of the respondents are not too conversant with the term constructability, while a handful had. This practically implies that on the average there is generally a low level of awareness and understanding of the concept and the application of constructability tools and techniques among the various professionals. The findings further revealed that corporate lesson learned log/file with a (MS=4.00) was the most used and ranked first. Others are; Brainstorming with a (MS=3.90), Peer Review with a (MS=3.89), Graphical computer based tools and CAD with a (MS=3.83), discussions with clients, contractors, suppliers with a (MS=3.43).

This study specifically sought to identify the extent and level of awareness of and adoption of the concept of SCM, identify and evaluate key features of SCM for successful construction project delivery in Nigeria. The study adopted an exploratory research design method of investigation consisting of the quantitative and qualitative methods. A purposive and convenient sampling was deployed in selecting the sample size. A semi-structured interview, case study, personal observation and questionnaire survey was carried out in a construction firm located in Abuja. The data were analyzed using descriptive statistics; Relative Importance Index (RII) and Cronbach's Alpha reliability test. The studies found out that majority of the respondents have not heard about the SCM concept, while a few of them have heard about it. The study further revealed the following features as key, they include; level of awareness/adoption of SCM was abysmally low. Findings from the 8 key features for succe...

Supply Chain Management (SCM) is a relatively new subject and an emerging field of research for construction industry. Since 1990's Construction Supply Chain Management (CSCM) has been drawing increasing interest from researchers. Management styles and production processes of construction industry differ from manufacturing industry. These differences may lead to barriers for implementing CSCM. While manufacturing firms are permanent and continuing organizations over time, the construction industry has a temporary operational nature and it is project based. This industry intrinsically requires development of specific supply chain solutions, because project oriented approach impedes application of contemporary techniques of supply chain management. In this study a proposal calling for development a conceptual model which will be derived and integrated from several existing SCM and CSCM model. This descriptive study is expected to be a comprehensive model to be a used in future projects. This call may also serve as a guide for the researchers on the subject.

This study specifically sought to identify the extent and level of awareness of and adoption of the concept of SCM, identify and evaluate key features of SCM for successful construction project delivery in Nigeria. The study adopted an exploratory research design method of investigation consisting of the quantitative and qualitative methods. A purposive and convenient sampling was deployed in selecting the sample size. A semi-structured interview, case study, personal observation and questionnaire survey was carried out in a construction firm located in Abuja. The data were analyzed using descriptive statistics; Relative Importance Index (RII) and Cronbach's Alpha reliability test. The studies found out that majority of the respondents have not heard about the SCM concept, while a few of them have heard about it. The study further revealed the following features as key, they include; level of awareness/adoption of SCM was abysmally low. Findings from the 8 key features for successful SCM construction project delivery revealed the following; disseminating quality information across the various chains, deploying web based and other software and portals as well as the application of internet in improving the effectiveness of construction, ensuring that the level of service and price of suppliers are better, applying activity based costing and management as a performance measure via the elimination of non-value adding activities across the chain, top management needs to continually implement policies that would stimulate the interests of all and sundry, relationship management and trust building, communication and environmental pressures from specialists and other professionals about the benefits of SCM, and outlining trade finance as a precondition for successful supply chain finance.

In recent years, with the increasing level of competition in the global construction market, several research efforts
have focused on the application of information technology (IT) as a way to improve the integration process of construction
supply chain management (CSCM). Visual representation of the process can provide an effective tool for
monitoring resources in the CSCM. In order to support this objective, this paper integrates building information
modeling (BIM) and geographic information systems (GIS) into a unique system, which enables keeping track
of the supply chain status and provides warning signals to ensure the delivery of materials. First, the proposed
methodology is implemented by using BIM due to its capability to accurately provide a detailed takeoff in an
early phase of the procurement process. Furthermore, in order to support the wide range of spatial analysis
used in the logistics perspective (warehousing and transportation) of the CSCM, GIS is used in the present
model. Thus, this paper represents the integrated GIS-BIM model manifesting the flow of materials, availability
of resources, and “map” of the respective supply chains visually. A case example is presented to demonstrate the
applicability of the developed system.

XOMOTOSHOP is a company in Indonesia that engaged in the field of motor spare parts. There are several constraints that found such as handling distribution, procurement of spare parts that must under go indent system because of factory stocks are gone and some recapitulation of the data which still use manual system. So, with the aim of reducing lost document, efficiency and low operating costs in the storage of goods as well as integrating information between divisions within the company we start to analyse how implying such supply chain management method can improve the business on XOMOTOSHOP and design web based application to apply the method we used. This application is built by web based with PHP programming language and database MySQL. Problem analysis of this study that occur is done through the assessment of PIECES analysis element, done a follow-up system analysis used to develop the application through UML (Unified Modeling Language) design. It is hoped that using SCM system in XOMOTOSHOP improves productivity by streamlining the running supply chain process and streamlining operational expenses.

A unique characteristic of the construction industry is its fragmented nature. Multiple stakeholders have to come together to deliver a project and share multiple types of data, stored in multiple technology systems. Traditionally, technology solutions for managing projects are typically sold to a single stakeholder. There are owner oriented solutions, contractor oriented solutions etc. but very little to manage the complete project data end-to-end. We propose a construction information supply chain solution that brings all stakeholders into one platform and can help deliver projects efficiently. The solution integrates all the stakeholders from a data and workflow perspective, while taking into account confidentiality and intellectual property considerations. We describe how such a solution has been deployed at a real estate project in India and the value that the various stakeholders are realizing. Finally, we outline how such a solution has to be an essential part of a lean operations strategy or BIM strategy for any stakeholder looking to improve operational efficiency.

Just-In-Time (JIT) production and logistics. Today, SCM represents an autonomous managerial concept, although still largely dominated by logistics. Previous initiatives to advance the construction supply chain have been somewhat partial. The generic methodology offered by SCM contributes to better understanding and resolution of basic problems in construction supply chains, and gives directions for construction supply chain development. The practical solutions offered by SCM, however, have to be developed in construction practice itself, taking into account the specific characteristics and local conditions of construction supply chains.

The suppliers’ performance plays a vital role, with a domino effect, in project success, organizational competitiveness, protecting supply chain and construction industry from disruptions and PESTEL risks (political, economic, social, technological, environmental, and legal). Therefore, measuring the performance of the construction suppliers has become the primary focus of project-oriented organizations and the core of business decision-making, especially during global megatrends. The question that may arise here is, “How can the performance of the construction suppliers be determined under uncertainties considering the post-COVID-19 era?” Organizations need eligible suppliers for the rapid recovery of the supply chain and construction sector at this critical stage. Given the importance of the issue, this study aims to propose a novel approach for measuring the performance of construction suppliers using the fuzzy ordinal priority approach (OPA-F). OPA-F is a recent development in multiple criteria decision-making (MCDM) that can determine the criteria weights for performance measurement using fuzzy linguistic variables. We do not always have access to a complete data set in real-world situations and business environments. Nevertheless, OPA-F can handle this dilemma, even with incomplete input data. This research intends to consider three main aspects of the construction suppliers, known as (L-A-D) capabilities, including localization, agility, and digitalization. In this regard, we bring up a case study from the construction industry to demonstrate the application of the proposed framework. The findings show that the most critical criterion is “digitalization” for the case study. This criterion covers “supply chain automation” and “virtualization and dematerialization” of services/products. The proposed approach is practical and straightforward, particularly for academicians and decision-makers; it can also incorporate uncertainties.

This study specifically sought to identify the extent and level of awareness of and adoption of the concept of SCM, identify and evaluate key features of SCM for successful construction project delivery in Nigeria. The study adopted an exploratory research design method of investigation consisting of the quantitative and qualitative methods. A purposive and convenient sampling was deployed in selecting the sample size. A semi-structured interview, case study, personal observation and questionnaire survey was carried out in a construction firm located in Abuja. The data were analyzed using descriptive statistics; Relative Importance Index (RII) and Cronbach's Alpha reliability test. The studies found out that majority of the respondents have not heard about the SCM concept, while a few of them have heard about it. The study further revealed the following features as key, they include; level of awareness/adoption of SCM was abysmally low. Findings from the 8 key features for succe...

The construction industry, which contributes around 5 percent to gross domestic product, is a vitally important industry in New Zealand. With over 50,000 businesses, the construction industry is the third largest industry by business count in New Zealand’s economy (Statistics New Zealand 2009). Although it is widely accepted that productivity can be improved by adoption effective supply chain management (SCM), no studies have investigated this in the New Zealand context. The purpose of this paper is to understand the nature and extent of current practice of Construction Supply Chain Management (CSCM) in NZ construction. Consequently to examine whether current SCM practice exemplified in NZ could be
considered to be international ‘Best Practice’. A case study approach is used for probing SCM practice on a NZ$75m commercial project located in Auckland Central Business District (CBD). The supply chain network of the principal ground works and superstructure construction stages was studied. The key findings of the case study suggest that the flow of
materials remains the main focus of CSCM practice. It was found that essential skills training for CSCM was extremely limited and largely ill-defined in terms of its nature and content. Finally it was identified that as the NZ construction industry moves towards a significantly more collaborative framework, the efficacy of CSCM operations is expected to
substantially improve. However this last point did not negate the requirement to expand and improve skills training in CSCM. This indicates that there is room for improving CSCM to reduce construction project costs and increase productivity.

Cloud computing and cloud based IT solutions are relatively recent advancement in enterprise solutions
that have been gaining traction. While the construction industry has been slow to adopt these
technologies, the scenario is definitely changing and adoption is increasing. Cloud based computing
combined with the mobility offered by smartphones and tablet PCs are changing the landscape of IT
solutions for managing construction projects. The flexibility of accessing information anywhere and the
ability to buy computing power at affordable rates implies that construction projects can now take
advantage of additional computing power to deliver a new generation of collaboration and decision
support solutions. Forward looking construction companies can take their business to new heights if they
can evolve to thinking of their business as an agile supply chain rather than a fragmented, litigious
industry that it is traditionally seen as. In other words, the combination of cloud solutions on mobile
technologies is a potent combination that has definite advantages for the construction industry, given the
fragmented and distributed nature of the industry. But the solutions are not a panacea in itself; successful
adoption depends on successful migration of processes and relationships as well that need to change.
This paper will discuss cloud based IT solutions and its applicability in this context for the construction
industry.

The increased use of precast components in building and heavy civil engineering projects has led to the introduction of innovative management and scheduling systems to meet the demand for increased reliability, efficiency and cost reduction. The aim of this study is to develop an innovative crew allocation system that can efficiently allocate crews of workers to labour-intensive repetitive processes. The objective is to improve off-site precast production operations using Multi-Layered Genetic Algorithms. The Multi-Layered concept emerged in response to the requirement of modelling different sets of labour inputs. As part of the techniques used in developing a Crew Allocation " SIM_Crew " System, a process mapping methodology is used to model processes of precast concrete operations and to provide the framework and input required for simulation. Process simulation is then used to model and imitate all production processes and Genetic Algorithms (GAs) are embedded within the simulation model to provide a rapid and intelligent search. A Multi-Layered chromosome is used to store different sets of inputs such as crews working on different shifts and process priorities. A 'Class Interval' selection strategy is developed to improve the chance of selecting the most promising chromosomes for a further investigation. Multi-Layered Dynamic crossover and mutation operators are developed to increase the randomness of searching mechanism in the solution space. The results illustrate that adopting different combinations of crews of workers has a substantial impact on the labour allocation cost and this should lead to increased efficiency and lower production cost. In addition, the results of the simulation show that reduced throughput and process-waiting times and improved resource utilisation profiles can be achieved when compared to a real-life case study.

There is a wealth of knowledge concerning conflict management and its resolution in the workplace, however there is a dearth of information relating to conflict management and its resolution in engineering project management. This paper set out to examine the reality of conflict management in engineering project management in New Zealand. This was achieved through a review of credible literature sources and the completion of a pilot study to gain subject matter expert perspectives. The research suggests that conflicts can be destructive, resulting in anxiety and strong emotional responses leading to reflexive reactions including avoidance, aggression, fight, hostility and a breakdown in communications and relationships. Findings indicate that managing a project structure is synonymous with handling conflict and these disagreements can be detrimental to the success of a project. The initial results suggest that a number of factors act as drivers of conflict in engineering projects in...

Project alliancing involves the active collaboration of construction project owners and nonowner participants (designer, contractors, and suppliers) to deliver projects in an atmosphere of shared responsibilities and liabilities. Alliancing connotes integration but in real practice, it fails to create a true alliance environment since only part of the value chain (owner, designer, main contractor) is considered for integration. Consequently subcontractors are very often left out of the key alliance. Therefore this study identifies improvement areas to current alliance practice and suggests changes that will permit critical sub-contracting processes to be integrated into a project's main alliance. To achieve this objective the research follows a comparative study approach. Information obtained from relevant literature is used to identify current subcontractor management practices and best practices for subcontractor integration in alliances. A case study of an alliance project is used to identify improvement areas in subcontractor management practices in an alliance environment. From these findings, the study proposes a revised alliance framework that integrates subcontractors from the early stages in alliance contracts, thus enabling the realisation of benefits accruable to projects through early contractor involvement. showed that strategic alliances between contractors and subcontractors produce superior client satisfaction because of the overall improvement of onsite construction activities. study concludes that relationship attributes such as trust, commitment, communication, fair profit and joint problem solving are positively and significantly related with on-site construction performance. Though Hughes et

This paper reviews and analyses issues relating to the uptake of BIM in the NZ construction industry. There have been few BIM applications in NZ; in particular, in post-construction phases like facilities management, there is none. The paper found that the three reasons why BIM has not been widely accepted and used in New Zealand are: the slow uptake by NZ construction companies; a lack of Kiwi-focused BIM initiatives (led by the government and industry bodies); and a lack of BIM-based building life cycle considerations. Therefore, the paper concludes that there is an urgent need for a joint research programme in NZ to develop a Kiwi-oriented knowledge base on BIM. Given the fact that all major research organisations currently have development plans in their pipelines, coupled with potential developments of the Christchurch City after the quake, it seems an ideal time to take a BIMbased research initiative in the country. This joint BIM-focused research programme should concentrate on construction management processes, including procurement management, contract management, information management, as well as post-construction aspects such as facility management.

Project alliancing involves the active collaboration of construction project owners and nonowner participants (designer, contractors, and suppliers) to deliver projects in an atmosphere of shared responsibilities and liabilities. Alliancing connotes integration but in real practice, it fails to create a true alliance environment since only part of the value chain (owner, designer, main contractor) is considered for integration. Consequently subcontractors are very often left out of the key alliance. Therefore this study identifies improvement areas to current alliance practice and suggests changes that will permit critical sub-contracting processes to be integrated into a project's main alliance. To achieve this objective the research follows a comparative study approach. Information obtained from relevant literature is used to identify current subcontractor management practices and best practices for subcontractor integration in alliances. A case study of an alliance project is used to identify improvement areas in subcontractor management practices in an alliance environment. From these findings, the study proposes a revised alliance framework that integrates subcontractors from the early stages in alliance contracts, thus enabling the realisation of benefits accruable to projects through early contractor involvement.

This study sought to delineate SCM features using the analytical hierarchy process (AHP) with a view to incorporating it into the delivery of construction projects in Nigeria. The study adopted an exploratory research design (quantitative and qualitative) methods. A purposive and convenient sampling technique was deployed with the aid of semi-structured interview, case study; questionnaire survey in a construction firm in Port-Harcourt, Rivers State, Nigeria. Questionnaires were used to collect primary data after being pre-tested via a pilot study for validity and reliability. The data collected were analysed using the AHP. Findings from the study shows that the following features are key; Instituting trust and long term relationships amongst supply chain partners (ITP), supply chain finance (SCF), supply chain and continuous performance measurement (SCCPM), information technology (IT), quality management (QM), supply base management (SBM), senior management's commitment (SMC) a...

The purpose of this study was to identify various implementation bottlenecks to the Ghana Public Procurement Law 2003 (Act 663). The study adopted multiple research approaches, including; review of relevant literature, interviews and questionnaire survey of 49 District Assemblies and Metropolitan and Municipal Assemblies in the Ashanti and Brong Ahafo Regions of Ghana. The study identified low capacity of procurement professionals, low interaction between procurement entities and Public Procurement Authority (PPA), deliberate controlling of competition, non-compliance with provisions of the law, splitting of contracts into smaller lots, lack of funds and non-cooperativeness of suppliers, as the major challenges militating against the implementation of the Public Procurement Law.

The International Journal of Managing Value and Supply Chains ( IJMVSC ) is a quarterly open access peer-reviewed journal that publishes articles that contribute new results in all areas of value and supply chain management. The journal provides a platform to disseminate new ideas and new research, advance theories, and propagate best practices in the management of value and supply chain management, looking across both product and service-based businesses. This will include works based in service management, logistics and distribution, operations management, process management, flow control, and customer service. The journal offers a forum in which academics, consultants, and practitioners in a variety of fields can exchange ideas to further research and improve practices in all areas of business. The International Journal of Managing Value and Supply Chains ( IJMVSC ) seek to establish new collaborations, new best practices, and new theories in the management of both product and service-based organizations around the world.

Efficient supply chain management calls for robust analytical and optimal models to automate its process. Therefore, information technology is an essential ingredient that integrates these tools in supply chain. With the emergence of wireless, the high technologies and the reliability of mobile devices, mobile web services draw a promising horizon facing economic challenges. They offer new personalized services to each actor in the supply chain on their mobile devices at anytime and anywhere. This paper presents a literature review of mobile web service implemented on the industry context based on the supply chain management approach. First, a large definition of mobile web service and some proposal architecture are exposed. Then the paper discuss some generic related work on mobile web service focusing on supply chain management. Finally some challenges on m-service oriented supply chain management are proposed.

The purpose of this study was to identify various implementation bottlenecks to the Ghana Public Procurement Law 2003 (Act 663). The study adopted multiple research approaches, including; review of relevant literature, interviews and questionnaire survey of 49 District Assemblies and Metropolitan and Municipal Assemblies in the Ashanti and Brong Ahafo Regions of Ghana. The study identified low capacity of procurement professionals, low interaction between procurement entities and Public Procurement Authority (PPA), deliberate controlling of competition, non-compliance with provisions of the law, splitting of contracts into smaller lots, lack of funds and non-cooperativeness of suppliers, as the major challenges militating against the implementation of the Public Procurement Law.

The increase in urban development and an increasingly stable and economically empowered middle class in Africa are both driving the expansion of supermarket activity in these new, lucrative, African markets. Much of this activity comes from South Africa and has triggered what can be seen as the "fourth wave" of global supermarket evolution. This paper reviews the background, examines the expansion of three major South African supermarket businesses into the African continent, and assesses the impact on local producers of goods and services. It does so by introducing the concept of value chain to reveal some of the new complexities in this process and to show how some of the issues associated with value must be mitigated so that there can be a successful marriage between the traditional and new business practices in the host country economies. The discussion and analysis is based on a range of interviews with senior management in the three South African retailers.

Project alliancing involves the active collaboration of construction project owners and nonowner participants (designer, contractors, and suppliers) to deliver projects in an atmosphere of shared responsibilities and liabilities. Alliancing connotes integration but in real practice, it fails to create a true alliance environment since only part of the value chain (owner, designer, main contractor) is considered for integration. Consequently subcontractors are very often left out of the key alliance. Therefore this study identifies improvement areas to current alliance practice and suggests changes that will permit critical sub-contracting processes to be integrated into a project's main alliance. To achieve this objective the research follows a comparative study approach. Information obtained from relevant literature is used to identify current subcontractor management practices and best practices for subcontractor integration in alliances. A case study of an alliance project is used to identify improvement areas in subcontractor management practices in an alliance environment. From these findings, the study proposes a revised alliance framework that integrates subcontractors from the early stages in alliance contracts, thus enabling the realisation of benefits accruable to projects through early contractor involvement. showed that strategic alliances between contractors and subcontractors produce superior client satisfaction because of the overall improvement of onsite construction activities. study concludes that relationship attributes such as trust, commitment, communication, fair profit and joint problem solving are positively and significantly related with on-site construction performance. Though Hughes et

Construction projects are extremely complex and generally take place in uncontrolled environments owing to the involvement of various participants where each project comprises several phases'. Obtaining real-time information and information sharing among the involved participants of the construction projects are vital to link the supply chain well and completing projects comply with project budget and deadlines. This paper investigates the applications of integrated RFID technology and portal system as promising information and communication technology support facility in construction e-logistics to overcome the supply chain complexity, to improve supply chain efficiency and practical communication and control among participants in construction industry.

Conflicts occur on construction projects and may degenerate into unpleasant situations such as claims, lawsuits and project abandonment. This research investigated the frequency and correlates of conflicts in identified conflict centers on projects procured with either the traditional method or integrated methods. Conflicts were measured in terms of their frequencies of occurrence. Five internal conflict centers on construction projects were identified and used. Questionnaires were administered through purposive and snowballing techniques on 274 projects located in twelve states and Abuja in Nigeria. 96 usable responses were obtained. The collected data were subjected to both descriptive and inferential statistical analyses. The most critical area of conflict was around resources for project execution on projects executed with the integrated procurement method, while the most critical area of conflicts on projects executed with the traditional method was conflict arising from administrative procedures. There were significant correlations between overall satisfaction with project procurement and the frequency of conflicts. However, the results of the analyses do not suggest that any significant correlations exist between the method used for the procurement of the projects and the frequency of conflicts on the projects. The study recommends that the central place of the person, the psychological make-up and personality of team members, instead of structure, may be variables to watch out for with respect to frequency of conflicts, handling of conflicts and overall satisfaction with project procurement. It is recommended that similar analyses can be done on the basis of intensity or seriousness of conflicts.

The International Journal of Managing Value and Supply Chains ( IJMVSC ) is a quarterly open access peer-reviewed journal that publishes articles that contribute new results in all areas of value and supply chain management. The journal provides a platform to disseminate new ideas and new research, advance theories, and propagate best practices in the management of value and supply chain management, looking across both product and service-based businesses. This will include works based in service management, logistics and distribution, operations management, process management, flow control, and customer service. The journal offers a forum in which academics, consultants, and practitioners in a variety of fields can exchange ideas to further research and improve practices in all areas of business. The International Journal of Managing Value and Supply Chains ( IJMVSC ) seek to establish new collaborations, new best practices, and new theories in the management of both product and service-based organizations around the world.

The complexity and fragmented nature and the multiple stakeholders in the construction industry often make it difficult to come up with a firm decision regarding sustainable building materials selection. The wrong choice could negatively impact the project objective and performance outcome. This study assessed the critical factor influencing the choice of sustainable building materials (SBM) selection on construction projects in the Southeast geopolitical zone of Nigeria. Data were collected using a well-structured questionnaire, nonprobability (purposive and snowball) sampling techniques, and an internet-mediated survey. Data analyses were carried out using the appropriate descriptive and inferential statistical tools and exploratory factor analysis (EFA). The study revealed recycled plastic, natural clay and mud, stone, bricks and tile, cellulose, stray bales, grasses, limestone, and wood timber, are the commonly used sustainable building materials. Also, their level of awareness ...

This study specifically sought to identify the extent and level of awareness of and adoption of the concept of SCM, identify and evaluate key features of SCM for successful construction project delivery in Nigeria. The study adopted an exploratory research design method of investigation consisting of the quantitative and qualitative methods. A purposive and convenient sampling was deployed in selecting the sample size. A semi-structured interview, case study, personal observation and questionnaire survey was carried out in a construction firm located in Abuja. The data were analyzed using descriptive statistics; Relative Importance Index (RII) and Cronbach's Alpha reliability test. The studies found out that majority of the respondents have not heard about the SCM concept, while a few of them have heard about it. The study further revealed the following features as key, they include; level of awareness/adoption of SCM was abysmally low. Findings from the 8 key features for succe...

The history of the construction industry worldwide is full of projects that were completed with significant time and cost overruns. In an attempt to reverse this trend, this study aims at establishing the relationship between time overrun and labour productivity on construction sites in Lagos, Nigeria. 43 technical and management staff of some medium and large construction firms based in Lagos, Nigeria were sampled and administered a questionnaire survey. The questionnaire contained 18 causes of project time overrun and 14 causes of low labour productivity which had been identified from the literature reviewed. With these a relationship between project time overrun and low labour productivity was established. Both descriptive and inferential statistics were used in analyzing the data. Results indicate that inadequate funds for the project, inadequate planning before project takeoff, inadequate tools and equipment and delay in delivery of material top the list of major causes of time overrun while the use of wrong construction methods, inadequate construction materials and inaccurate drawing/specification are the key factors causing low labour productivity on construction sites. Significant negative relationship was found between time overrun and labour productivity in construction sites in Nigeria. The study concludes by recommending that early appointment of project managers could ensure proper management of both the human and material resources that could guarantee improved productivity and ultimately save projects from time overrun.

The aim of this paper is to identify the various managerial issues encountered by UK/Irish contractors in the management of materials in confined urban construction sites. Through extensive literature review, detailed interviews, case studies, cognitive mapping, causal loop diagrams, questionnaire survey and documenting severity indices, a comprehensive insight into the materials management concerns within a confined construction site environment is envisaged and portrayed. The leading issues highlighted are: that contractors’ material spatial requirements exceed available space, it is difficult to coordinate the storage of materials in line with the programme, location of the site entrance makes delivery of materials particularly difficult, it is difficult to store materials on-site due to the lack of space, and difficult to coordinate the storage requirements of the various sub-contractors. With the continued development of confined urban centres and the increasing high cost of ma...

One of the critical factors responsible for the successful management of construction projects is individual factors. These factors play a significant role in the decision-makers' attitudes towards risks management. Many previous studies regarding the management of construction projects have focused on the factors contributing to the success of risk management. However, little attention has been given to factors severely affecting the decision-makers' risk attitudes with particular reference to an individual's risk factors in the construction industry. Therefore, this study aims to identify the factors affecting contractors' risk attitudes and then determine its relationship with government policy. Theories of planned behaviour and organisational control were used to develop the theoretical framework that investigated G-7 contractors in the Kuantan Pahang, Malaysian construction industry. A review of relevant literature and questionnaire was employed to identify the ...

Establishing and prioritising the factors that may influence the final contract price when responding to a call for tenders is crucial for proper risk analysis and reliable forecasting; it could make or mar the ability to achieve expected profit margin in an era of lump sum fixed price contracts where clients often contest variation claims. In New Zealand, these factors have not been researched; hence estimators rely only on judgement to ‘guess-estimate’ in their price forecasting. This study aimed to fill the knowledge gap by investigating the priority factors. 150 responses from professional members of the New Zealand Institute of Quantity Surveyors were analysed using multi-attribute method. Results showed thirty-seven factors which could influence the final contract price; the three most influential being poor tender documentation, complexity of design & construction, and completeness of project information. Other factors relating to project, client and contractor characteristic...

The attention onprefabricated modules and components is resurging in the New Zealand residential construction industry. This isdriven by its relative benefitsand technological advancements.However inspite of thisattention, there has not been commensurate understanding of its manufacturing supply chainand the enhancement of theirperformance. Similarly, there has been little research considering the supply chain and supply chain integration in module/component manufacturing in residential constructionin New Zealand. Therefore, this paper presents a comprehensive overviewof the modular manufacturing process andthebarriers and enablers for supply chain integration in module manufacturing.The identified barriers are discussed with theirrelevant enablers. Informationfor the study investigation was collected through twelve semi-structured face to face interviews withprefabricationexperts. The information obtained was analysed using contentanalysis that enabled the development of a framewor...

Establishing and prioritising the factors that may influence the final contract price when responding to a call for tenders is crucial for proper risk analysis and reliable forecasting; it could make or mar the ability to achieve expected profit margin in an era of lump sum fixed price contracts where clients often contest variation claims. In New Zealand, these factors have not been researched; hence estimators rely only on judgement to ‘guess-estimate’ in their price forecasting. This study aimed to fill the knowledge gap by investigating the priority factors. 150 responses from professional members of the New Zealand Institute of Quantity Surveyors were analysed using multi-attribute method. Results showed thirty-seven factors which could influence the final contract price; the three most influential being poor tender documentation, complexity of design & construction, and completeness of project information. Other factors relating to project, client and contractor characteristic...

The increased use of precast components in building and heavy civil engineering projects has led to the introduction of innovative management and scheduling systems to meet the demand for increased reliability, efficiency and cost reduction. The aim of this study is to develop an innovative crew allocation system that can efficiently allocate crews of workers to labour-intensive repetitive processes. The objective is to improve off-site precast production operations using multi-layered genetic algorithms (GAs). The multilayered concept emerged in response to the requirement of modelling different sets of labour inputs. As part of the techniques used in developing a crew allocation 'SIM_Crew' system, a process mapping methodology is used to model processes of precast concrete operations and to provide the framework and input required for simulation. Process simulation is then used to model and imitate all production processes and GAs are embedded within the simulation model to provide a rapid and intelligent search. A multi-layered chromosome is used to store different sets of inputs such as crews working on different shifts and process priorities. The results illustrate that adopting different combinations of crews of workers has a substantial impact on the labour allocation cost and this should lead to increased efficiency and lower production cost. In addition, the results of the simulation show that reduced throughput and process-waiting times and improved resource

This research is aimed at confirming whether the autonomous vehicles (AV) for last-mile delivery is sustainable in terms of three aspects-social sustainability, environmental sustainability, and economic sustainability. The safety was solely considered for the social sustainability because of its importance of AV application for lastmile delivery. This study finds that it is relatively safe to use AVs for delivery because of the speed limit of actual society and the good road conditions provide the ground that AV runs safely for last-mile delivery in urban areas. Besides, AV has a special advantage when facing pandemic. For environmental sustainability, the emission problem is the main concern. It is concluded that AV has a significant advantage in emission reduction in terms of a series of emissions. This mainly results from the driving behaviors difference between AV and human vehicles. As for the economic sustainability of AV, this research adopted a quantitative way to illustrate because the cost of AV is essential to consider because of AV's commercial nature. The research reveals the cost advantage of AV under different carrying capabilities.

The public sector has traditionally financed and operated infrastructure projects using resources from taxes and various levies (e.g. fuel taxes, road user charges). However, the rapid increase in human population growth coupled with extended globalisation complexities and associated social/political/economic challenges have placed new demands on the purveyors and operators of infrastructure projects. The importance of delivering quality infrastructure has been underlined by the United Nations declaration of the Millennium Development Goals; as has the provision of ‘adequate’ basic structures and facilities necessary for the well-being of urban populations in developing countries. Thus, in an effort to finance developing countries’ infrastructure needs, most countries have adopted some form of public-private collaboration strategy. This paper critically reviews these collaborative engagement approaches, identifies and highlights 10 critical themes that need to be appropriately captu...

The aim of this paper is to identify the various managerial issues encountered by UK/Irish contractors in the management of materials in confined urban construction sites. Through extensive literature review, detailed interviews, case studies, cognitive mapping, causal loop diagrams, questionnaire survey and documenting severity indices, a comprehensive insight into the materials management concerns within a confined construction site environment is envisaged and portrayed. The leading issues highlighted are: that contractors' material spatial requirements exceed available space, it is difficult to coordinate the storage of materials in line with the programme, location of the site entrance makes delivery of materials particularly difficult, it is difficult to store materials on-site due to the lack of space, and difficult to coordinate the storage requirements of the various subcontractors. With the continued development of confined urban centres and the increasing high cost of materials, any marginal savings made on-site would translate into significant monetary savings at project completion. Such savings would give developers a distinct competitive advantage in this challenging economic climate. As on-site management professionals successfully identify, acknowledge and counteract the numerous issues illustrated, the successful management of materials on a confined urban construction site becomes attainable.

In recent years, with the increasing level of competition in the global construction market, several research efforts have focused on the application of information technology (IT) as a way to improve the integration process of construction supply chain management (CSCM). Visual representation of the process can provide an effective tool for monitoring resources in the CSCM. In order to support this objective, this paper integrates building information modeling (BIM) and geographic information systems (GIS) into a unique system, which enables keeping track of the supply chain status and provides warning signals to ensure the delivery of materials. First, the proposed methodology is implemented by using BIM due to its capability to accurately provide a detailed takeoff in an early phase of the procurement process. Furthermore, in order to support the wide range of spatial analysis used in the logistics perspective (warehousing and transportation) of the CSCM, GIS is used in the present model. Thus, this paper represents the integrated GIS-BIM model manifesting the flow of materials, availability of resources, and "map" of the respective supply chains visually. A case example is presented to demonstrate the applicability of the developed system. Published by Elsevier B.V.

The globalisation of trade and rise in national income has resulted in increased demand for transport infrastructure and services. Given its high and diverse functionality and wide range of beneficiaries, road infrastructure and services have become essential components of national transport systems. However, lack of access to basic all-weather, reliable and safe road infrastructure is a major challenge in developing countries. Therefore, this study focused on public-private collaborative management of road infrastructure in Nigeria. The research methodological approach adopted an extensive review of relevant literature and questionnaire survey. A critical evaluation of secondary data helped to articulate the characteristics of various models of public-private collaboration. The study population comprised public, private sectors and end-user stakeholders purposively selected from the geo-political zones of Nigeria. Primary data were analysed through SPSS version 20 along with infere...

The performance measurement was
proposed improving continuously on a supply chain, reducing cost, providing customer satisfaction, and increasing profits. This research developed a performance measurement model on a supply chain
system to coconut oil agro-industry with the SCOR model
as the initial formula. It was focused on evaluating a
coconuts raw material supply from the suppliers and
evaluating an order fulfillment to coconut oil from
customers. The beginning observation has twelve
variables; Inventory Accuracy of Raw Material,
Internal relationship, Planning employee reliability,
Time to produce a production, Source fill rate, Mean
the lateness of delivery, Percentage of the correct delivery
quantity, Percentage of correct delivery quality,
Delivery to Commit Date, Order Fulfillment Lead
Time, Make Time, and Response Time. The
performance measurement was calculated by internal
benchmarking based on company target. Calculation
the result to all variable shows that the value still under
expected target. Hence, the business process
improvement method is implemented to repair the
an overall system that is saving time about 120 minutes. An
analysis result concludes that coconut oil agroindustry
should improve in several aspects, as
follow; supplier partnership, the accuracy of supply
report, standardization fulfillment time of order, sales
forecast, and sales report system in every period.
Keywords− performance measurement, supply
chain system, SCOR, business process improvement.

The aim of this paper is to identify the various managerial issues encountered by UK/Irish contractors in the management of materials in confined urban construction sites. Through extensive literature review, detailed interviews, case studies, cognitive mapping, causal loop diagrams, questionnaire survey and documenting severity indices, a comprehensive insight into the materials management concerns within a confined construction site environment is envisaged and portrayed. The leading issues highlighted are: that contractors' material spatial requirements exceed available space, it is difficult to coordinate the storage of materials in line with the programme, location of the site entrance makes delivery of materials particularly difficult, it is difficult to store materials on-site due to the lack of space, and difficult to coordinate the storage requirements of the various sub-contractors. With the continued development of confined urban centres and the increasing high cost of materials, any marginal savings made on-site would translate into significant monetary savings at project completion. Such savings would give developers a distinct competitive advantage in this challenging economic climate. As on-site management professionals successfully identify, acknowledge and counteract the numerous issues illustrated, the successful management of materials on a confined urban construction site becomes attainable.

Effective and efficient management of suppliers within a supply chainis an essential requirement for improving organisational performance within construction companies. However, factors inherent within the supply chain of supplier-buyer exchanges such as culture, politics, dependence and trust may influence supplier relationship quality (SRQ). This research therefore seeks to identify the influence that these factors have upon SRQ in the Ghanaian construction industry and develop a conceptual framework that explains the interconnectivity between them. A literature review isused to develop a conceptual framework of the antecedents influencing supplier relationship quality. Primary ‘perception’ data obtained from 152 building material suppliers is used to test the proposed model using Partial Least Squares (PLS). Findings reveal that culture, politics, dependence and trust have a significant influence on relationship quality in supply chain collaborations amongst purchasers and suppli...