Calculating the cost impact in loss of productivity claims

Wonkyoung Seo, Junghoon Kim, Youngcheol Kang

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Loss of productivity is a major type of claim for construction projects. Maintaining exact records and calculating the impact of productivity losses in a timely manner are difficult for general contractors in formulating such claims. This study introduces an add-on tool that automatically calculates the cost impact of productivity loss using Primavera P6. By inputting the actual quantities and resource data, the tool calculates the impact by comparing the actual quantities and workhours before and after the claimable event occurs, based on the measured-mile approach. The total cost of indemnity is derived by considering the indirect cost incurred by the project delay as well as the direct cost caused by productivity loss. The applicability of the tool was validated through a case study and interviews with industry experts. This tool helps practitioners to reliably organize data from the field in real time, which will eventually help them manage claims effectively.

Original languageEnglish
Article number104341
JournalAutomation in Construction
Publication statusPublished - 2022 Aug

Bibliographical note

Publisher Copyright:
© 2022 Elsevier B.V.

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Civil and Structural Engineering
  • Building and Construction


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