Plan unreliability is a critical problem in the construction industry. Since the industry is fragmented and every project is unique, schedule delay is a common phenomenon. Ballard and Howell proposed that shielding construction and stabilizing work flow is a solution to this problem. These two researchers, along with other lean construction scholars, developed the Last Planner™ System (LPS)5 of Production Control through a series of experiments beginning in the early 1990‘s. LPS has become a popular tool among the lean construction community to stabilize work flow and make plans more reliable. However, LPS users and mentors report numerous challenges with implementation and use of this system. This paper discusses findings from a literature survey about the challenges faced by construction professionals during the implementation and use of LPS. The aim of this research effort was to identify the challenges faced by construction professionals during the implementation and use of LPS at both organizational and project levels.
Last Planner System, Organizational challenges, Project level challenges