Tracking Sequential Excavation Progress for a Light Rail Crossover Cavern

Visualizing the plan for excavating a large underground cavern for a crossover between tracks on a new segment of light rail using Sequential Excavation Method (SEM) techniques. Actual progress is plotted on top of the planned sequence using GraphicSchedule’s “linear progress” feature. The informative cross-section graphics show how the drifts will be excavated and supported around the existing running tunnels, helping the project team communicate this complex sequence of work.