Transportation is a waste category that has not been much explored in the literature on construction management. Moreover, the existing studies about it have focused mostly on its impacts and not on the causes. This paper aims to present the results of a second implementation of a method in order to identify, measure and characterize the transportation waste on physical flows of construction processes. A case study was performed in a residential building project, which involved the use of the Light Steel Frame technology. The research methods comprised the following sources of evidence: direct observation on site (work sampling and time studies), participant observation in planning meetings, and analysis of existing production control data. A database was produced containing a description of each transportation event, including pictures, causes, consequences, and its relationship with other types of waste, such as making-do, unfinished work, work-in-progress and rework. The main contributions of this study are concerned with the understanding of the nature of this type of waste, highlighting the classification of transportation waste causes, its main consequences and the relationships between this kind of waste and other ones
Waste, transportation waste, making-do, physical flow.
Perez, C.T. , Sommer, L. , Costa, D.B. & Formoso, C.T. 2015, 'A Case Study on Causes and Consequences of Transportation Waste' In:, Seppänen, O., González, V.A. & Arroyo, P., 23rd Annual Conference of the International Group for Lean Construction. Perth, Australia, 29-31 Jul 2015. pp 444-453