Journal of Construction Engineering and Management

Partnering and its principles have increasingly been introduced to the construction industry to improve the efficiency of project delivery. However, little research outlines the mechanism behind its application. This paper presents the findings of a study that was conducted to develop and test a partnering model that reveals the relationships between the critical success factors (CSFs) of partnering and demonstrates their importance to construction. With support of data collected from the Chinese construction industry, this study has revealed strong correlations among partnering CSFs, risk management, total quality management (TQM), use of incentives, and project performance. It is concluded that project success is the outcome of the interaction between a variety of techniques, and that partnering, associated with incentives, is a basic management method through which risk management and TQM can be strongly improved.

The design-build delivery method is increasingly used in the United States due to numerous advantages it can offer a project. An important issue associated with design-build delivery is the procurement method used to select the design-build team. It is a critical decision that involves several key project team members, including the owner, designer, and contractor organizations, and requires the owner to carefully choose the design-build procurement method that will be used to select the team that will deliver the project. This research quantitatively analyzed the correlation between the design-build procurement method and the performance of the design-build project with regard to cost, time, and quality metrics. The procurement methods studied were sole source, qualifications-based, best value, and low bid selection. Data were collected through surveys from 76 design-build projects in the United States. Based on the patterns and relationships identified from these data, a better understanding of the procurement process and how it influences project performance is achieved. The impact of project-specific factors and guidelines are presented to assist owners in selecting the design-build team procurement method that responds to their project goals.

Driven by acute fiscal problems and disenchantment with the performance of publicly delivered quality services, many governments in both industrial and developing countries are now relying on the private sector to deliver infrastructure services. In the context of private infrastructure financing, the provision of governmental support is not uncommon. The present paper discusses the theoretical framework of the valuation of the financial impact of support on the cost of debt, cost of equity, the expected return on equity (ROE), and the project’s net present value (NPV), based on the capital asset pricing model (CAPM) within a single-period context. Special focus is placed on a minimum revenue guarantee, a direct cash subsidy, and a subsidized subordinated debt. This paper shows that a guarantee reduces the cost of debt and can increase or decrease the cost of equity depending on the leverage, while a subsidy increases only the cost of equity. A subsidized subordinated debt increases both the cost of senior debt and the cost of equity. For all cases, all the supports improve the NPV because the expected increase of ROE can more than sufficiently offset any change in the cost of equity. This paper is of interest to academics because it provides the theoretical analysis of how a support can affect the rates of return expected by debt and private equity investors from risky and, probably, infeasible privately financed infrastructure projects. Practitioners, particularly those from the public sector, can also benefit from research findings that may inform decision makers about what support to provide.

Decommissioning offshore structures represents the end of the production life cycle, when wells are plugged and abandoned, infrastructure is removed, and the site is remediated and cleared of debris. Decommissioning operations are generally routine, involving standard, low-technology methods, over distinct stages and relatively short time horizons. Offshore operations are more uncertain and costly than onshore, however, due to the hostile ocean environment. Cost estimation is an important aspect of the business since engineers, project managers, and financial accountants frequently perform cost estimates in support of evaluating decommissioning alternatives, divestiture opportunities, and liability assessment. The purpose of this paper is to provide an overview of the factors that impact the primary stages of decommissioning and to describe a general methodology to estimate cost functions. A description of the regulatory requirements is presented along with the empirical construction of cost functionals for shallow-water developments in the Gulf of Mexico.

This paper introduces a particle swarm optimization (PSO)-based methodology to implement preemptive scheduling under break and resource-constraints (PSBRC) for construction projects. The PSBRC under study allows the preemptive activities to be interrupted in off-working time and not to resume immediately in the next working period because all the limited resources are to be reallocated during a break. The potential solution to the PSBRC, i.e., a set of priorities deciding the order to start the activities or restart the interrupted activities, is represented by the multidimensional particle position. Hence PSO is applied to search for the optimal schedule for the PSBRC, in which a parallel scheme is adopted to transform the particle-represented priorities to a schedule. Computational analyses are presented to verify the effectiveness of the proposed methodology. This paper provides an attempt to make use of preemption and break for the resource-constrained construction project with the objective of minimizing project duration.

This paper describes a stochastic simulation-based scheduling system (S3) that: (1) integrates the deterministic critical path method (CPM), the probabilistic program evaluation and review technique (PERT), and the stochastic discrete event simulation (DES) approaches into a single system and lets the scheduler make an informed decision as to which method is better suited to the company’s risk-taking culture; (2) automatically determines the minimum number of simulation runs in DES mode and therefore optimizes the simulation process; and (3) provides a terminal method that tests the statistical significance of the differences between simulations, hence eliminating outliers and therefore increasing the accuracy of the DES process. The system is based on an earlier version of the system called stochastic project scheduling simulation and makes use of all the capabilities of this system. The study is of value to practitioners because S3 produces a realistic prediction of the probability of completing a project in a specified time. The study is also of relevance to researchers in that it allows researchers to compare the outcome of CPM, PERT, and DES under different conditions such as different variability or skewness in the activity duration data, the configuration of the network, or the distribution of the activity durations.

Despite its enormous potential to improve performance, hybrid concrete construction (HCC) is currently underutilized. To demonstrate the benefits of using HCC (sometimes referred to as “mixed” construction) within the industry, it is essential that transparent criteria to assess this structural frame type against alternatives be determined, defined, and evaluated. Following a thorough review of literature in the building performance domain, a survey of U.K. experienced practitioners including clients, engineers, architects, quantity surveyors, and main contractors was conducted to obtain their perceptions regarding the importance of structural frame performance criteria (SFPC). A factor analysis of SFPC revealed seven dimensions, interpreted as “physical form and space,” “construction process,” “long-term sustainability,” “establishing confidence,” “building impact,” “physical appearance,” and “client satisfaction.” These dimensions should improve the decision making process when selecting an appropriate structural frame during early project stages by providing a simple list of performance criteria to be considered. Although these SFPC and dimensions were originally developed to ensure that the benefits of using HCC were apparent during the frame selection process, they are equally applicable to all frame choice comparisons. As such, they may provide a valuable tool for ensuring added value and client satisfaction.

The City of Edmonton’s Drainage Operations branch oversees the inspection, maintenance, and repair of the city’s drainage network. This network covers an area of $700.6{\mathrm{km}}^2$ to serve the city’s growing population of nearly 1 million people. The activities performed by this division consume a large amount of funding and are, therefore, receptive to improvements in productivity. The study presented in this paper was conducted to develop improved work methods and engineered productivity standards for the various drainage operations. The study focused on six crews, which accounted for over 25% of the total drainage operations budget. The six crews were divided based on their respective duties: (1) cleaning mains by low pressure flushing (LPF); (2) cleaning mains by high pressure flushing; (3) scheduled mechanical cleaning of catch basins (CBC); (4) inspecting mains by televising; (5) commercial establishment investigation; and (6) service-line rodding and televising. The study utilized the concept of work simplification and focused on two crew activities—LPF and CBC work tasks—to improve crew work methods, to develop an established work standard, and to verify the proposed improvements based on the simulation model’s output. These activities are described in greater detail in two case studies. The work measurement concept was implemented to develop engineered productivity standards for the remaining crews in order to improve their productivity as well. This paper describes the application of an industrial engineering philosophy of work measurement—lean production theory—and the technique of simulation analysis to capture current work methods, generate and test alternative methods, and develop new productivity standards for drainage maintenance operations crews.

There is an increasing need for effective tools for managing life cycle costs (LCC) of civil products. This paper presents a web-based semantic system for managing products’ life cycle costs. The basic architecture of the proposed system represents costs as a hierarchy of cost elements. Each cost element has a dollar value that could be deterministic, probabilistic, or fuzzy. Several factors (also represented in hierarchies) can have a set of impacts on the values of these costs. Through the analysis of different impact possibilities and probabilities, a decision maker can study various alternative scenarios and define the optimum set of costs and their values. A set of web services are used to capture cost elements, factors, and their impacts. The semantic nature of the system allows for it to be an integral part of a corporate memory system, where decision makers will be able to document and access lessons learned about LCC optimization. Finally, the proposed system includes a framework for a LCC-centered supply chain, where all stakeholders can collaborate in optimizing product LCC.

This research study introduces the development of a method for measuring and analyzing the project level productivity (PLP) of all project activity over the life of the project. A key aspect of the measurement method was the development of a process to combine multiple simultaneous work activity productivity into a global productivity value for the project as a whole. Three case studies, including the collection of thousands of productivity values, were performed on highway construction projects to demonstrate the validity of the analysis method. Results indicate that productivity can be measured and analyzed at the project level based upon the field data of construction operations.

Attempts to examine the root causes of injuries in the construction industry have been largely focused on fatalities and other serious injuries. These efforts were undertaken with the assumption that the root causes of serious injuries could lead to identifying approaches that could prevent the recurrence of similar injuries in the future and that these approaches would also be successful in eliminating many minor injuries. While some injuries may be either minor or serious depending on small differences in worker position, etc., that assumption does not appear to be valid for most injuries. The trends of causes leading to minor injuries are often quite different from those resulting in serious injuries. With this assumption, an examination was conducted to profile nearly 136,000 construction worker injuries, most of which did not result in lost time. Results indicate that these injuries, not resulting in lost time, generally do not fit the profile of injuries that result in fatalities or that are serious. Over half of the injuries in the present study were associated with lacerations (usually of the fingers and hand) and injuries sustained by the lumbar spine, upper extremities, or eyes. The percentage of injuries that involved lacerations was considerably higher for construction than for all other industries. The costs of injuries were found to be quite varied, depending on the part of the body that was injured.