This article presents the resource-constrained project scheduling problem with discounted cash flow maximization criterion from perspective of a contractor. Cash flows are considered as contractor’s expenses related to execution activities and client’s payments (revenue contractor) after completion contractual stages. To solve problem, dedicated techniques generate solutions simulated annealing...

Purpose Innovation during project delivery is contested space. The aim in this research to empirically explore the theory of space and how implementation can be optimized by contractor deliver better outcomes. It hypothesized that innovation has a proportional measurable relationship success. Design/methodology/approach Based on novel conceptual framework, applies case study methodology analyse...

In the construction industry, evaluating the financial status of a contractor is a challenging task due to the myriad of the input data as well as the complexity of the working environment. This article presents a novel hybrid intelligent approach named as Evolutionary Least Squares Support Vector Machine Inference Model for Predicting Contractor Default Status (ELSIM-PCDS). The proposed ELSIM-...

Nonlinearity, uncertainty and subjectivity are the three predominant characteristics of contractors prequalification which cause the process more of an art than a scientific evaluation. A fuzzy neural network (FNN) model, amalgamating both the fuzzy set and neural network theories, has been developed aiming to improve the objectiveness of contractor prequalification. Through the FNN theory, the...

The Contractor Renormalization group formalism (CORE) is a real-space renormalization group method which is the Hamiltonian analogue of the Wilson exact renormalization group equations. In an earlier paper[3] I showed that the Contractor Renormalization group (CORE) method could be used to map a theory of free quarks, and quarks interacting with gluons, into a generalized frustrated Heisenberg ...

We present a case study of a major contractor, Skanska, implementing BIM on two large hospital projects in the UK: the Saint Bartholomew and the Royal London. We argue that BIM is a set of practices or activities, rather than just a set of technologies, and describe the new ways of working that emerge through the implementation process. We focus on ways BIM activities were developed to bridge g...

Over the years, there is a growing trend towards quality-based specifications in highway construction. In many Quality Control/Quality Assurance (QC/QA) specifications, the contractor is primarily responsible for quality control of the process, whereas the highway agency is responsible for testing the acceptance of the product. A cooperative investigation was conducted in Illinois over several ...

In the analysis below, we consider introducing a second contractor early in the JSF program. Our focus is on what makes sense at the beginning of EMD, which should occur approximately a year after this study. For this study, we have cost data regarding the baseline winnertake-all program from both of the JSF contractors plus the JSF Program Office. The alternative is to introduce competition, f...

As defense acquisition costs have soared over the past decade, efforts at reforming the acquisition system have focused intensely on creating more opportunities for competition as a means to reduce costs and incentivize better contractor performance. While competition can, in some cases, reduce costs and improve contractor performance, it is not a cure-all for the problems that plague defense a...

In Sweeney v Boylan Nominees Pty Ltd the High Court affirmed that a principal is not vicariously liable for the negligent acts of an independent contractor. In this case a mechanic engaged by Boylan negligently performed repair work, resulting in an injury to Mrs Sweeney. Since the mechanic was a contractor rather than an employee, Mrs Sweeney was unsuccessful in her action against Boylan. Whil...