BIM 4D (4D Building Information Modeling) integrates the 3D digital model of a construction project with time and scheduling data, enabling visual construction sequencing and simulation. It allows stakeholders to plan, track, and optimize project timelines by linking each model component to a specific phase or activity in the construction schedule. 4D BIM enhances project management by improving coordination, clash detection over time, and construction planning, reducing delays and costly errors. Commonly used in large-scale projects, 4D BIM facilitates better communication among teams and supports data-driven decision-making throughout the construction lifecycle, from preconstruction to project delivery.