A recently conducted survey with corporate members of the LCI showed that the main barriers in Lean implementation are managerial based. To achieve the required change, site managers play a very important role as the linkage between the people responsible for value-adding activities on the construction site and the top management.

Starting with the basics on collaboration, this paper describes the development of a tool called "Collaboration Barometer", which can be used to measure the degree of collaboration between the participants in a construction project and shows how the results are processed and what benefits are derived from them.

Due to the numerous influencing factors, construction scheduling is a complex task. This paper suggests that further research is needed to close the existing gap in construction data management.

It is of utmost importance to identify factors which lead to poor management in Lean construction activities. This paper proposes that lack of ‘top management support’, ‘misperception about Lean practices’, and ‘lack of information sharing and integrated change control’ are the top three barriers for Lean implementation.

Takt Planning and Takt Control (TPTC) as a method for construction processes shows the potential for improving time aspects of construction sites in many practical examples. A first example of using the method of TPTC not only in construction but also in following processes such as equipment installation (production projects) indicates equal improvements. By analyzing...