Acta Scientiarum Polonorum

The paper examines issue of productivity time among construction workers, which depends on different factors.
Differences between various ways of defining the work productivity were described. According to the
author the most advantageous definition is based on a comparison of the achieved and assumed work effects.
Existing classification of factors affecting work productivity and their evaluation in terms of versatility were
also presented. In a direct comparison one of the classifications turned out to be the most universal. As a
result an approach to mathematical parameterization of the factors affecting the performance of construction
workers was proposed.