4D Modelling

What is 4D Program Analysis?

4D programme analysis is the creation of a 3D digital asset linked with the project programme. Oakwood has significant experience of delivering 4D solutions for our clients to support bid winning, pre-construction planning and construction management. We also use our skills in 4D programme analysis for post-project analysis.

Oakwood’s clients have experienced a wide number of benefits of adopting 4D programme analysis including:

  • Powerful communication and marketing tool for using in bid submissions
  • Reduction in programme inefficiencies and commercial risk
  • Demonstrate feasibility and on time delivery
  • Improved safety planning
  • Boost supply chain project knowledge
  • Virtual progress tracking and baseline comparison for project controls

Our Experience

We have delivered over 200 project 4D models for some of the World’s leading construction organisations, reducing project risks and improving productivity. Recent projects include:

  • Gravesend Railway Station
  • Abu Dhabi Airport Midfield Terminal
  • Southbank Place, London
  • City Centre DC PhII, Washington DC, USA
  • Bloomberg, London
  • National Graphene Institute, Manchester

iRay for 4D Modelling

NVIDIA® Iray® is a highly interactive and intuitive physically based rendering technology that generates photorealistic imagery by simulating the physical behavior of light and materials. Unlike traditional production renderers, Iray delivers results reflecting real-world behaviors.

Case Study – Gravesend Railway Station Remodelling

15 Day Full Blockade Supported by 4D Programme Analysis

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.