Off-site construction (OSC) has been regarded as an effective means of improving construction quality and efficiency. The adoption of OSC has been slower in developing countries such as China than in developed countries, and research on the barriers inhibiting the sector’s growth is inadequate. This paper aims to investigate the major factors inhibiting the adoption of OSC with reference to the Chinese construction market. Thirty factors influencing the use of OSC were identified through a literature review, questionnaire survey, and face-to-face interview with professionals in the construction industry. A questionnaire was sent out to developers in China, and 83 completed questionnaires were retrieved. Ranking analysis was used to identify 18 critical factors. The top three barriers are “absence of government regulations and incentives,” “high initial cost,” and “dependence on traditional construction methods.” Factor analysis enables grouping of the 18 critical factors into five categories, name...

Improving sustainability performance in developing infrastructure projects is an important strategy for pursuing the mission of sustainable development. In recent years, the business model of public-private-partnership (PPP) is promoted as an effective approach in developing infrastructure projects. It is considered that the distribution of the contribution on project investment between private and public sectors is one of the key variables affecting sustainability performance of PPP-type projects. This paper examines the impacts of the contribution distribution between public and private sectors on project sustainability performance. A model named the sustainability performance-based evaluation model (SPbEM) is developed for assisting the assessment of the level of sustainability performance of PPP projects. The study examines the possibility of achieving better sustainability through proper arrangement of the investment distribution between the two primary sectors in developing PPP-type infrastructure projects.

Construction projects are facing a greater number of uncertainties and more severe risks, which could cause much bigger losses than in the past. From the perspective of information economics, asymmetric information gives rise to opportunistic behavior, which is the primary cause of loss of faith and increased risk in the construction market. Asymmetric information theory is helpful for solving problems arising in construction projects and for preventing construction project risk. The main objective in this paper is to explore risk prevention mechanisms and measures in construction projects on the basis of asymmetric information theory. The research processes are (1) exploring the relationship between asymmetric information and construction project risk and exploring the mechanisms of construction project risk formation on the basis of asymmetric information; (2) analyzing the issue of asymmetric information in construction projects and creating an information model of construction project manageme...

With the involvement of an increasing number of contractors in the international construction market, venturing overseas has been fraught with fierce competition and considerable uncertainties. This underscores the importance of examining the extent to which the intensity of competition (IoC) for international construction business is moderate. Concentration is a conventional IoC measure. By synthesizing four major concentration methods including concentration ratio, entropy, Gini coefficient and the Herfindahl index, a new model for measuring moderate IoC is thus proposed. Using the 28 years ENR‐based data of the top 225 international contractors (TIC 225) in the proposed model, the IoC for international construction business is found to be moderate, if the magnitude of the market shares occupied by the top four international contractors is 0.2735. The finding revises a popular view that international construction competition has been intensifying only since 2002. It is implied that the proposed model favours a better understanding of competition characteristics in the international construction market and provides new insights into the theories about concentration.

Dust pollution is a key issue that contractors ought to address in the sphere of sustainable construction. Governments on behalf of the public assume part of the responsibilities for minimizing dust emissions on construction sites. However, the measures that are useful for governments to fulfill such a responsibility have not been explored explicitly in previous studies. The aim of this research is to map out China’s practices in this area with the intention of filling the knowledge gap. Using a combination of research methods, five categories of governmental measures are proposed: technological, economic, supervisory, organizational, and assessment-based. Data from 37 major cities in China are collected for analysis. While the proposed categories of measures are demonstrated in China, the data analysis results show that governments prefer technological and organizational measures, and institutional guarantees and technological innovation are a prerequisite for dust-free construction. This research provides a comprehensive examination of construction dust control from the perspective of governments, and it can assist governments in improving the performance of dust management in the construction context.

The engineering-procurement-construction (EPC) method has the potential to help construction projects achieve sustainable performance, e.g., the contractor’s early involvement, cost savings, and a reduced schedule. However, high uncertainties and complexities are contained in EPC projects. 4D BIM (Building Information Modeling) with abilities to simplify the time and space relationships of construction activities and support multi-party information sharing is beneficial to EPC project management. The behavior pattern of the project personnel toward accepting 4D BIM information systems or tools needs to be explored. Therefore, a research model of the acceptance of 4D BIM in EPC projects with eight latent constructs is proposed through a literature review of technology acceptance theories. Data is collected from a questionnaire survey and interviews. Research hypotheses are examined using PLS-SEM (partial least squares-structural equation modeling). Empirical evidence is collected from China, and implications to the developing countries facing the challenge of developing a technology-intensive construction industry are provided: (1) Adopting 4D BIM in the EPC project is beneficial; (2) the task-technology fit plays a leading role in technology acceptance; (3) the management incentive is inefficient at the operational stage. Suggestions for future research on 4D BIM acceptance in complex construction projects with abundant data and alternative models are provided.