Winner – Synchro Software Visual Planning Awards, Project of the Year 2014
The station is situated on a major London commuter station and is now seen as a major interchange for metro and high speed services. It was remodelled to allow 12-car trains to stop providing up to 3,500 extra seats and more space for passengers.
Oakwood were employed by Network Rail to create a 4D information model to support programme analysis using existing 2D information. This required detailed laser scan surveys to capture the existing station and a lidar model of the immediate vicinity.
The remodelling project had a total value of £19.1m and consisted of a new track layout, new signalling, extended platforms and a new island, construction of a new footbridge and interfacing with existing rail systems. The total length of new track totalled 982m with platform extensions of 120m.
The 4D model was used extensively during the 15 day blockade for production planning, safety planning and programme analysis. A number of issues were proactively identified off-site which reduced potential risks to the project. Furthermore, due to inclement weather during the first three days 100 hours were lost, and later recovered, in part due to improved re-programming using the 4D model.
Gravesend Station as completed on schedule, with no lost time due to injuries, zero RIDDORs and the avoidance of over runs carrying a potential penalty of £1.35m per day.