A process of developing a 3D model of the existing conditions for an asset, or a specific area within a facility.
The model can be developed based on laser scanning surveys (point cloud scans) or conventional surveying techniques.
Objective:
- Increase quality of design with accurate representation of existing conditions such as existing assets & topography.
- Increase quality of constructability analysis with accurate representation of building shell
- Increase quality of site logistics at with accurate representation of building shell for equipment and material loading
Potential Value:
- Enhances the efficiency and accuracy of existing documentation
- documentation of environment for future uses
- Aids in future modeling and 3D design coordination
- detailed layout information
- Pre-Disaster planning
- Post-Disaster record
- Use for visualization purposes
Resources Required:
- Building Information Model modeling software
- Laser scanning point cloud manipulation software
- 3D Laser scanning
- Conventional surveying equipment
Process:
- Surveyor establishes control points on site, including model base-point, or origin
- Surveyor documents locations of existing conditions such as buildings, utilities and topography
- Design Team precisely locates existing conditions in model and designs new systems
Team Competencies Required:
- Ability to manipulate, navigate, and review a 3D model
- Knowledge of Building Information Model authoring tools
- Knowledge of 3D laser scanning tools
- Knowledge of conventional surveying tools and equipment
- Ability to sift through mass quantities of data that is generated by a 3D laser scan
- Ability to determine what level of detail will be required to add “value” to the project
- Ability to generate Building Information Model from 3D laser scan and/or conventional survey data
