BIM LOD Best Practices in ALICE Pro

3D models in ALICE are often rapid prototypes for visual planning and simulating of project constraints. A detailed (geometrically accurate) 3D model is NOT required for planning in ALICE. 

  • Most ALICE projects start with LOD 100 models and can continue to manage the project with LOD 100-300 models.  
  • ALICE Recipes enable customers to detail the assembly process within recipe operations and add CPM logic in the recipes

We like to remind customers that 3D elements in ALICE can represent a particular element (wall, slab, core), or they can be grouped together to represent a scope of work, level, or system. 

Below are examples of varying 3D model LOD phases and how the models are dynamically developed at each phase in the project lifecycle: 

 

LOD 100 Model with Level 2 to 4 schedule detail   Screen_Shot_2022-12-06_at_10.17.09_AM.png

This is a commercial Template model for with a telescoping schedule detail for bidding and precon  Projects can start planning at a systems level in the conceptual phase and then expand detail in precon

Phase 

Model LOD

Schedule Levels 

Benefit 

Tender 

LOD 100 

Levels 1 to 2 

Preloaded recipes and constraints for typical projects. Rapid iteration of conceptual design studies, optimization of milestones, systems, key equipment 

Precon

LOD 100

Levels 3 to 4 

All of the above + optimized crews, sequences, and equipment 

Note: Additional detailing of recipes will be required for project-specific coordination and constraints

 

LOD 200 model with Level 3 schedule 

Screen_Shot_2022-12-06_at_10.20.34_AM.png

Phase 

Model LOD

Schedule Levels 

Benefit 

Preon

LOD 200

Levels 2 to 4

Optimize milestones, systems, and self-perform resources 

Forecast cost and schedule impact of design changes (increase in quantities, scope additions) 

Input quantities and cost codes to forecast labor and equipment hours 

Export to P6 with custom WBS  

Construction

LOD 200

Levels 3 to 4 

All of the above and Manage; tracking forecasted vs. actuals duration and labor hours 

Lock sequence and unlock sequence, reschedule in 10 minutes during construction. 

Negotiate change orders and time extensions 

Optimize for milestones & incentives  

Pull planning with trade partners and increased schedule control  

 

LOD 300 Model with Level 4 schedule 

Screen_Shot_2022-12-06_at_10.21.55_AM.png

Phase 

Model LOD

Schedule Levels 

Benefit 

Preon

LOD 300

Level 2  to 4

Input quantities and cost codes to forecast labor and equipment hour. This data can be tied back to cost codes for reporting. 

Value engineering and target value design 

Forecast cost and schedule impact of design changes 

Optimize milestones, systems, and resources  

Construction

LOD 200

Level 3 to 4 

All of the above and Manage; tracking forecasted vs. actuals duration and labor hours 

Lock sequence and unlock sequence, reschedule in 10 minutes during construction. 

Negotiate change orders and time extensions 

Optimize for milestones & incentives  

Pull planning with trade partners and increased schedule control  

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