 Corresponding author: Pratik Bhikhubhai Panchal. Copyright © 2023 Author(s) retain the copyright of this article. This article is published under the terms of the Creative Commons Attribution License 4.0. Cross-disciplinary risk assessment models for integrated project delivery in large- scale civil engineering projects Pratik Bhikhubhai Panchal * Senior Scheduler Project Controls Specialist, Stantec Canada. World Journal of Advanced Engineering Technology and Sciences, 2023, 08(01), 484-496 Publication history: Received on 22 December 2022; revised on 24 February 2023; accepted on 27 February 2023 Article DOI: https://doi.org/10.30574/wjaets.2023.8.1.0041 Abstract Collaboration as a distinct activity exists across the planet only among a small number of actors because it requires deep diversity across long periods of definition while transcending traditional boundaries. The project actors unite continuously under integrated project delivery to work together from project start until completion through one unified delivery method. The concept applies to any moment starting from the beginning up to the end. The research develops an analytical model to enhance current IPD risk evaluation systems by analyzing typical risk components needed for civil engineering projects. Organizations employed risk strategies across different disciplines to evaluate their response assessments via a framework which integrated technical systems with organizational structures and social elements according to recent research evaluations based on real case evidence. Research uncovered essential differences between conventional models because these models did not have capability for observing disciplinary ties together with quick modifications to stakeholder operational mandates. The proposed framework succeeds in improving validity assessment of team risk communication processes while it develops resilient systems for better decision-making capabilities. The research adds value to ongoing talks about project delivery methods that investigate planning and project engineering and infrastructure project management association dynamics. Keywords: Integrated Project Delivery (Ipd); Cross-Disciplinary Risk; Risk Assessment Models; Civil Engineering Projects; Large-Scale Infrastructure; Collaborative Project Management; Multidisciplinary Collaboration; Construction Risk Management; Project Delivery Frameworks 1. Introduction Civil engineering mega projects are among the biggest and the most dramatic ventures in modern-day infrastructure concerning areas such as highways, rail networks, airport, bridges, and other complicated urban systems. The distinguishing characteristics typical of mega projects include their gigantic volume scale, amounts of investment, and prolonged engagement of various stakeholders. Eventually, the associating with mega ventures creates complexities related to technical and logistical constraints because of the contributions of inputs by disciplines into civil engineering, structural engineering, environmental engineering, architecture, urban planning, and project managing. Moreover, with indefinite extension of duration and the swaying factors of changing regulatory regimes, social consciousness, and environmentally friendly conscience, multidisciplinary interactions also become complicated; consequently, opening up huge opportunities for uncertainty and risk throughout the entire project development process-from inception to completion (Aktan et al. 2022).