Documenting a Tunnel Boring Machine’s Journey

Plotting the TBM’s actual daily advance, using data exported from Tunnelsoft TPC®, a real-time data monitoring system. The planned activities from the contractor’s P6 schedule were also plotted to help the team track progress against plan. Text box callouts were placed on top of the GraphicSchedule chart to document any delays or differing site conditions that affected tunnel production. This proved to be an effective tool for communicating the tunnel production story, evaluating the impacts of differing site conditions, and negotiating time impacts for proposed change orders.