Measurement and analysis of construction labour productivity

An analytical approach for explaining the variability in labour intensive construction operations has been developed. A consistent method of collecting productivity developed jointly at the Pennsylvania State University and the University of Dundee has been refined and tested. Data has been collected daily from seven Scottish sites for continuous periods of up to 3 months. Not only productivity but many of the factors affecting it have been measured. A comprehensive, computerised database has been designed to facilitate data storage and manipulation. The quantification of the impact of each individual factor is based on the assumption that deviations from an operative?s normal output arise because of disturbances imposed by a multiplicity of site factors. The impact of each individual factor causes the average daily productivity to change.