MDM-Based Buffer Estimation in Construction Project

Rohan Singhal, J. Uma Maheswari, V. Paul. C Charlesraj, Aritra Pal

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Schedule delay and cost overrun are the two major challenges for the successful project delivery in construction. It has been reported that significant delays in construction projects are caused by rework and there are several reasons for rework. A framework has been proposed to assess the delay due to two primary reasons for rework, (i.e. design changes and non-conformances), using Multiple Domain Matrix (MDM), a matrix-based technique. This methodology would help the project planners to create an as-adjusted schedule that is more appropriate compared to as-planned or as-built schedules. Further, it is possible to arrive at a meaningful estimate of activity buffer time in order to account for delays due to rework. Eventually, this would lead to successfully implement one of the key principles of lean, namely, elimination of time-related “waste” that is due to defect and/or delay.
Original languageEnglish
Title of host publicationProceedings of the 26th Annual Conference of the International Group for Lean Construction
EditorsVicente A Gonzalez
PublisherThe International Group for Lean Construction
Number of pages10
ISBN (Print)9789380689296
Publication statusPublished - 16 Jul 2018
Externally publishedYes
Event26th Annual Conference of the International Group for Lean Construction: Evolving Lean Construction - Towards Mature Production Across Cultures and Frontiers - Chennai, India
Duration: 16 Jul 201822 Jul 2018
Conference number: 26 (Link to Conference Website)

Publication series

NameProceedings of the International Group for Lean Construction
PublisherInternational Group for Lean Construction (IGLC)
ISSN (Print)2309-0979


Conference26th Annual Conference of the International Group for Lean Construction
Abbreviated titleIGLC 2018
Internet address


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