As part of Singapore’s Underground Masterplan, the Urban Redevelopment Authority is working towards having a more complete 3D map of the underground spaces and infrastructures in Singapore. Underground spaces needs to be planned upfront, together with planning the aboveground, to ensure compatibility and integration of underground uses with above-ground uses.
Spatial and engineering information are integrated with the use of BIM, GIS technology and data. BIM captures information on where and what the underground structures are in 3D, and GIS enables proximity checks.
In this project, AcePLP was tasked to create the BIM models for the (i) Marina Coastal Expressway, (ii) at-grade piled roadways, (iii) Teban Flyover, (iv) MRT stations and its associated tunnels in the Marina Bay area, and to generate the (v) island-wide rail alignments which includes NSL, EWL, DTL, CCL, BPLRT, SKLRT and PGLRT.
A BIM Execution Plan for Cross-discipline Collaboration
AcePLP oversaw the project delivery by deploying a team of up to 24 BIM Specialists on this project. Preliminary rounds of discussion with LTA officers offered us a detailed understanding of LTA’s BIM standards. Our BIM Managers then created a BIM Execution Plan to document all workflows and standards that will be used in the project.
As this project involves working with a large amount of as-built information, the AcePLP BIM team had to sieve through the database to identify and sort the latest drawings to be used for modelling. Throughout this project, large amounts of information were used by various team members, hence organization was priority to ensure that all files are always accounted for. Point cloud information was also used to ensure that the BIM models created are accurate.
Through our unique BIM management methodology, the AcePLP team successfully generated a consistent BIM database with high accuracy.
BIM Tools: Bentley PowerRail Track + Bentley AECOsim
For delivery of this project, the AcePLP team used a combination of software. Bentley PowerRail Track was used for the creation of 3D alignment data and tunnel corridor. Thereafter, structural components are created using Bentley AECOsim. All MRT stations were created using Autodesk Revit before its coordination with the surrounding substructures.