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Construction space float definition, quantification, and analysis

International Construction Specialty Conference (5th : 2015 : Vancouver, B.C.); Canadian Society for Civil Engineering

Schedule float is a fundamental concept in construction planning and control that refers to the flexibility of delaying project activities. However, traditional schedule floats offer limited help in congested construction sites and cannot answer a common field question of ‘how much time is available to use this space to stage material?’ This paper therefore presents the development of new theory and metrics of space float for construction activities based on a previously developed spatial scheduling model. It is structured into three main sections. First, it presents a review of a previously developed spatial scheduling model that utilizes singularity functions to represent and schedule activities as interdependent and overlapping workspaces. Second, it presents the different possible activity float types and the detailed calculation of activities shift float. Third, it describes the new space float algorithm to generate dynamic position float contours that change over the project time. The calculation of proposed activity and space floats are illustrated with an example of a small construction jobsite. The proposed concept has the potential to strengthen the relation between construction scheduling and other management functions, such as e.g. lean operations and material layout planning.

Text

2015-11-27

Attribution-NonCommercial-NoDerivs 2.5 Canada

http://hdl.handle.net/2429/53591

Froese, T. M., Newton, L., Sadeghpour, F. & Vanier, D. J. (EDs.) (2015). Proceedings of ICSC15: The Canadian Society for Civil Engineering 5th International/11th Construction Specialty Conference, University of British Columbia, Vancouver, Canada. June 7-10.

Faculty; Other

DSpace