A BIM Workflow was produced for the project, refer Figure 4 and Detailed Design commenced in April 13. Short Overview of Initiative to solve the issue How does this initiative work and how was it put into practice? Why was a different way of doing things seen as necessary/a good idea? What did you do differently? A commitment to delivering the M1 J19 in a BIM environment was made by Skanska and Jacobs. That commitment was to deliver a single 3D model as part of the new design process to take place. The objective of the single 3D detailed design model is to provide a final design of all Civil works that incorporates and integrates all the individual design elements (alignment, fencing, safety barrier, drainage, lighting signs, etc). Each individual design layer can be overlaid in the 3D model at any time and checked for clashes. Using BIM as an overall approach to design (full 3D models shared and coordination throughout the design process, based upon BS1192) gave better visibility to other design disciplines and to the other members of the delivery team. A review of clashes at key gateways has been replaced with continuous formal and informal design review processes based entirely upon BIM. The term Clash Prevention has been used to reflect this change in approach. The sharing of the 3D models throughout the design team and the delivery team gave early visibility to Design Options from all disciplines. These are continuously checked against existing assets and against all elements of the design. Rather than waiting for key design gateways to share design proposals, 3D models have enabled rapid and better informed decision making to
Rating Cost saving for project Delivery Journey Reliability Health and Safety Reputation/Diversity and Integration Sustainability/Environment High £1M + Saving Significant savings to agreed schedule of programme and target of 20% efficiencies against budget have been exceeded Significant Improvement to journey time that exceeds the average of 3 minutes during peak time - Traffic Flow - Accident Frequency - Incident Clear-up Times Significant improvement where the accident frequency rate target 0.10 has been greatly reduced Potential National/International Media Interest Advance equality of opportunity Significant Enhancement (of any 1 with no detriment to rest) - Carbon - Waste - SPAs, SSIs etc - Air - Noise Medium £0.1 - £1M Saving Moderate savings to agreed schedule of programme and target of 20% efficiencies against budget Moderate Improvement in journey time that meets the average of 3 minutes during peak time - Traffic Flow - Accident Frequency - Incident Clear-up Times Moderate improvement where the accident frequency rate target 0.10 has been reduced Regional Media Interest (Government Office Regions) Prevent discrimination Moderate Enhancement (of any 1 with no detriment to rest) - Carbon - Waste - SPAs, SSIs etc - Air - Noise Low < £0.1M Saving Slight savings to agreed schedule of programme and target of 20% efficiencies against budget . Slight Improvement in journey time that is working towards the average of 3 minutes during peak time - Traffic Flow - Accident Frequency - Incident Clear-up Times Slight improvement where the project is working towards achieving the accident frequency rate target 0.10 Local Media Interest (Scheme/MAC) Foster good relations Slight Enhancement (of any 1 with no detriment to rest) - Carbon - Waste - SPAs, SSIs etc - Air - Noise Neutral Neutral Neutral Neutral Neutral Neutral Neutral Adverse Impact Adverse Impact Adverse Impact Adverse Impact Adverse Impact Adverse Impact Adverse Impact Selectivity criteria