TY - JOUR AB - Purpose As a result of the increasing challenges of time overrun, several companies regularly set up delay assessment procedures for performance improvement and profit maximization. In the construction industry, projects are enormously complicated and involve significant budgets, and therefore optimizing project performance through the root cause analysis should be imperative for every project manager. Typically issues of delays in projects are generally discussed and problematized separately, yet a comprehensive framework for systematic analysis and grouping of delays is rarely contended. The purpose of this paper is to introduce the 4P concept (project related, practices, participants, and procurement) for identifying, analyzing, and classifying delays in the internal environment of the project development process.Design/methodology/approach The 4P conceptual framework was validated through the synthesis of the existing literature.Findings Interestingly, despite the increasing concerns about delays in the construction industry, most research on delays are project and/or country specific, thus no consensus about the sources of delays. The application of the proposed concept as a theoretical framework would provide an understanding of the available delay sources, their risks and use for project delay assessment and classification.Research limitations/implications This study grouped delays based on the shared characteristics and four main sources were identified and analyzed. There may be other sources or factors, yet would be dependent or aspect of the 4P.Practical implications The study informs project teams to reduce delays in the construction industry.Originality/value The paper is an application of risk assessment tool to conceptualize delays in the internal project environment. VL - 25 IS - 1 SN - 0969-9988 DO - 10.1108/ECAM-09-2016-0199 UR - https://doi.org/10.1108/ECAM-09-2016-0199 AU - Ansah Richard Hannis AU - Sorooshian Shahryar PY - 2018 Y1 - 2018/01/01 TI - 4P delays in project management T2 - Engineering, Construction and Architectural Management PB - Emerald Publishing Limited SP - 62 EP - 76 Y2 - 2024/04/20 ER -