ABSTRACT
In many circumstances variety is the spice of life. But it is a bitter herb when you are trying to complete a complex and uncertain fast track project. Significant variations occur at every stage in the construction process. Plans change and materials are late. In compressed circumstances, variation becomes more apparent and critical as it exposes the interdependence between activities. Once the work environment is stabilized through modifying the planning system, it becomes possible both to reduce variation in flows and to work behind the shield to improve downstream operations. Suggestions for research and improved practice are offered specifically regarding the management and reduction of flow variation.
