A Systems Approach to Support the Selection of Highway Construction Operations with Environmental Concerns
Previous studies have suggested considerable environmental impacts and resource consumption of construction processes. Although literature involves plenty of studies that emphasize the importance of environmental impact, sustainable movement has not been fully integrated to the other project objectives, such as time and cost. Additionally, the effect of changing project conditions on environmental impacts, as well as time and cost of construction projects has not been studied in detail. The project conditions can be unexpected events in addition to the resource-related problems of the project. For example, delay in the delivery of resources can affect the construction professional to decide on a different construction operation. As the changing project conditions influence the behavior of project parties in a complex construction system, the decisions of project parties have a significant impact on the success of project objectives. Yet, the effect of project conditions on the relationship between time, cost and environmental impact (TCEI) is unknown by the contractors. Due to the multi-objectives nature of construction projects and the lack of understanding of such relationship, it is important to have a method for construction professionals to select the most “appropriate construction operations. This paper proposes a model to simulate the selection of construction operations when environmental impact is considered as an additional performance criterion. The study includes the application of decision analysis to model the behavior of project parties as agents and project conditions in the highway construction projects. The complex construction system is modeled by using a system dynamics approach. The output of the model helps to determine the influence of project conditions and correspondingly the decisions of agents on the selection of highway construction operations, when there are three potentially conflicting objectives as time, cost and environmental impact.
environmental impact life cycle assessment agent systems system dynamics highway construction.
Gulbin OZCAN-DENIZ Yimin ZHU
Department of Civil and ArchitecturalEngineering and Construction Management, Milwaukee School ofEng Department of Construction Management, Florida International University, Miami, USA
国际会议
2011 International Conference on Construction & Real Estate Management(2011建设与房地产管理国际会议)
广州
英文
1-6
2011-11-19（万方平台首次上网日期，不代表论文的发表时间）