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Planning the construction duration is an important consideration in any construction project. Indicators that permit an early forecast of the duration provide the basis for such planning. To date, such a basis has been lacking in the German‐speaking area. This paper aims to discuss this matter.

Indicators are identified that enable a forecast of the construction duration. In addition, a simple regression model is provided to assist in selecting construction speed indicators. This empirical analysis relies on the data, collected on a uniform basis, from 115 German residential buildings.

Project size (measured in m² gross external floor area) and project standard (measured in € building construction cost/m² gross external floor area) are found to be significant drivers of construction speed. It appears that project size, in contrast to the project standard, is positively correlated with construction speed.

An expansion of the data pool is required for more extensive study. On the one hand, this means including relevant drivers that have only been insufficiently considered to date, such as project complexity, project environment, management‐related attributes. On the other hand, the data pool must also be expanded to include other types of use.

Increased disposal costs and reduction in number of landfills have created a need for implementing effective waste management in the construction industry. As every construction project is unique in its way of development, benefits from the waste management may also differ from project to project and thus project characteristics should be taken into consideration when implementing the strategy. This study seeks to investigate how different project characteristics affect perception on benefits, from construction waste management, based on the survey results from 66 industry experts.

A literature review was conducted to gather information on project characteristics and its classification, construction waste management, waste management plan and its benefits. Subsequently, a set of questions was formulated to gain insight and opinion on the selection of project characteristics and particular benefits of construction waste management. A set of questions pertaining to different project characteristics linked with benefits of waste management was sent to each of the personnel for their views.

The results of this study establishes that the key materials used in projects, project size in terms of total installed costs, and project type have perceptual impacts on benefits from construction waste management.

Understanding how project characteristics will affect the benefits can help the construction industry to identify projects to which the waste management should first be applied, maximizing its benefits.

Clients of the construction industry, an important segment of the project management (PM) discipline, can make an important contribution to the occupational health and safety (OHS) performance of the construction projects they procure. This practice note aims to describe an initiative of the Office of the Federal Safety Commissioner in Australia.

A model client framework was developed to assist Australian Government agencies to embed OHS into their procurement and PM practices.

The model client framework establishes principles for the management of OHS in construction projects and establishes processes for client involvement in OHS through the planning, design and procurement, construction and completion stages of construction projects. Within each project stage, key management actions are established for Australian Government agencies.

The model client framework will enable Australian Government agencies to operate in a consistent framework and on a similar footing, with respect to the management of OHS in their construction projects. This practice note describes the key components of the framework.

The model client framework is the first comprehensive set of tools and resources to support construction clients to integrate OHS into their procurement and PM processes. The life‐cycle approach ensures that OHS information is transferred throughout the construction supply chain from the client, through the designer, constructor and ultimately to the end‐user. The Framework shows how the integration of OHS into all aspects of project decision making (led by the client) can significantly improve the OHS performance of construction projects.

The purpose of this paper is to show how effective project team communications is one of the major challenges to a construction project's success. The success of large‐scale construction projects is critical to Chinese economy. The purposes of the research are to grasp the current status of communications in large‐scale construction projects in China and lay a basis for further research on project communications.

A survey was conducted by postal questionnaire and telephone.

Through analyzing the data obtained from the survey, the communication problems in large‐scale construction projects in China are exposed. The roots of the problems are summarized as lack of good communication mechanism, weak organizational structures of construction teams, lack of uniform standards for construction information, and lack of support for advanced communication technologies.

The paper presents the directions for further research to improve communications in large‐scale construction projects in China.

The paper's aim is to establish the relationships between the formalisation of construction firms on the level of coordination and effectiveness of refurbishment projects.

The approach takes the form of a literature review of published journals and textbooks, a postal questionnaire survey with managing directors, project managers and contract managers. About 94 construction companies were selected for the postal questionnaire survey. In total, 54 (57 percent) of returned questionnaires were considered to be useful for statistical analysis.

Highly formalised construction firms require higher level of coordination than lowly formalised construction firms. In highly formalised construction firms, the participants managing refurbishment projects tend to circumvent formalisation by having more informal interactions, which contradicts the needs of the firms. The effectiveness of highly formalised construction firms is not significantly better than lowly formalised construction firms.

The study is limited to medium and large refurbishment projects, with contract value above £500,000.

The paper highlights the need to reduce formalisation in managing refurbishment projects. Large construction firms, which tend to be highly formalised should set up autonomous refurbishment division to manage refurbishment projects.

The paper shows that the formalisation of the organizational structure of construction firms affects the level of coordination of refurbishment projects.

The use of prefabrication has been considered as one of the most effective waste minimization methods in the construction context; however, the industry has found difficulties to implement it. Contractors lack experience in using prefabrication and they do not know how to implement prefabrication to their projects effectively. The purpose of this paper is to present the findings of a study on the implementation of prefabrication in the context of different project types and procurement approaches.

This paper examines possible project types and procurement methods to maximally gain benefits of using prefabricated building components. A questionnaire survey and structured interviews have been conducted.

From the results, it should be noted that residential projects and design and build procurement methods are the most effective project types and procurement methods, respectively, in using prefabrication. In the interview discussion, one of the governmental employees highlighted that about 65 percent of projects are residential projects. The high supply of residential housing suits fast population growth in Hong Kong. The interviewee also explained that shortening construction period is one of the main goals in their projects. Furthermore, an interviewed main contractor highlighted that the involvement of contractors at the early design stage in a project can bring advantages in considering construction methods before project commencement on site and to improve project constructability. An interviewed subcontractor also explained that the involvement of construction organizations in the design stage can effectively improve the use of prefabrication in major activities including concreting, plastering and formworking, rather than wet‐trade construction activities. Therefore, the use of standardized designs and prefabricated building components are highly encouraged.

This brings early considerations and suggestions to project parties to improve prefabrication implementation. The effects of prefabrication implementation are also considered.

A quantitative approach for construction pollution control that is based on construction resource levelling is presented. The parameters of construction pollution index (CPI) and hazard magnitude (hi) are treated as a pseudo resource and integrated with a project’s construction schedule. When the level of pollution for site operations exceeds the permissible limit identified by a regulatory body, a Genetic Algorithm (GA) enhanced levelling technique is used to re‐schedule project activities so that the level of pollution can be re‐distributed and thus reduced. The GA enhanced resource levelling technique is demonstrated using 20 on‐site construction activities in a project. Experimental results indicate that the proposed GA enhanced resource levelling method performs better than the traditional resource levelling method used in MS Project©. The proposed method is an effective tool that can be used by project managers to reduce the level of pollution at a particular period of time; when other control methods fail.

The purpose of this paper is to develop models to forecast final budget and duration of a highway construction project during construction stage.

Highway construction project data are collected and analyzed to find out factors affecting project final budget and duration before developing the forecasting models, research for which is based on the principle of Artificial Neural Network (ANN). The forecasting results obtained from the proposed method are compared with those obtained from the current method based on earned value.

Factors affecting final budget and duration are presented. The forecasting results obtained from the proposed method based on ANN application are more accurate and stable than those obtained from the current method based on earned value.

Factors affecting final budget and duration may differ if applied in other countries, since the project data were collected in the Kingdom of Thailand. The forecasting models, therefore, must be reconsidered for better outcomes.

The study presents a useful tool for the highway construction project manager to predict project final budget and duration. The results can potentially provide early warning of over‐budget and schedule delay.

The ANN models to forecast final budget and duration of highway construction projects during the construction stage, developed by using project data reflecting continual and seasonal cycle data, can provide better predicting results.

Some of the vital lessons that could have been learned from project reviews are lost by contractors because of lack of a structured framework for undertaking them. Even though the construction business environment has moved toward modernising some of its business processes, unnecessary loss of lessons still characterise the industry. This paper aims to report a study that explores the development of a structured tool for measuring the constructs of the project review process in order to ensure organisational learning.

To ascertain the significance of the project review process, a study was undertaken in Malawi. A questionnaire survey was employed to elicit data on the constructs of the project review process that was distributed to Malawian registered construction contractors. Of the 84 sampled construction contractors, 60 completed questionnaires were received.

The results suggest that size and experience play a significant role in the way that construction contractors appropriate lessons from the various constructs of project reviews. Furthermore, the enablers of project review were significantly correlated to lessons learned, shared and planned for implementation at p <0.01 for a correlation coefficient of 0.875. However, implementation plans and application of total quality management tools in conducting project reviews had by far the least mean scores.

The study forms the basis for further research; replication of this study to other parts of world could yield rich lessons for construction industry.

The constructs of project review process employed in this study can be used to design intervention frameworks for capturing lessons learned.

Conclusions flowing from an investigation of the literature together with the results of two recent research studies suggest that the relationship quality between the client representative (CR), the design team and the team undertaking construction management activities is a major factor governing construction time performance (CTP). While the managerial performance of the manager of the construction team was found to be a pivotal factor, the interaction between the CR and the construction management team was found to be crucial in facilitating good CTP, i.e. achieving a fast build rate. One interesting and valuable insight gained from the research studies reviewed in the present paper suggests that selection of a CR should be based on the capacity of the CR to gain the confidence of the project team. The CR characteristics which are significantly associated with good CTP are also discussed. It is proposed that these provide useful selection guidelines for appointing the appropriate person or team to represent the client's interests within the project coalition.