A new framework for determining productivity factors in construction sites

The productivity level within the construction industry is of direct interest to site managers and project management teams. Different researchers have tried to determine the factors that influence productivity but no general agreement could be made. The aim of this paper is to develop a conceptual framework on site productivity. Five major groups of independent variables, namely, project characteristics, labour characteristics, management system, resource management and the external environment are identified as crucial to site productivity. Based on these groupings, a conceptual model is to be developed to represent causal relationships. Once identified, this relationship is believed to be a useful piece of information to implement a project more productively