Geospatial Digital Delivery for GO Expansion: Connecting GIS, BIM and 3D Across the Corridor

ONxpress created a connected digital delivery environment using ArcGIS Enterprise,  BIM, reality capture and immersive 3D visualization to link design, field and  project information across GO Expansion. The approach enables earlier conflict identification, real-time field inspections, faster decision-making  and a trusted information foundation that can be transferred to the owner.

GO Expansion represents an extraordinary information-management challenge. The program spans an active regional rail network and brings together civil  infrastructure, track, utilities, structures, signalling, electrification,  environmental information and existing assets across hundreds of kilometres  of corridor.

Information needed to make decisions originates from many disciplines,  organizations and systems. Traditional project delivery methods can make it  difficult for teams to understand how individual designs, investigations and  construction activities relate to one another geographically. A drawing, model, spreadsheet or report may be accurate on its own, but project teams  also need to understand where it applies, what surrounds it, what has changed  and who else may be affected. 

For ONxpress, the challenge was therefore larger than creating individual  digital models. It was creating a shared spatial context that could connect  information across disciplines and make a project of this scale  understandable to a much broader group of users.

The approach needed to work with existing engineering and BIM processes  rather than replace them, while supporting design coordination, field  activities, visualization, decision-making and ultimately the development of  a project-wide 3D digital twin.