Building Information Modelling (BIM) is now an important part of both the infrastructure and construction industries. It has changed how projects are planned, designed, and built. When BIM is used, there are things called BIM levels. This term refers to the different stages of progress and teamwork in the building and architecture industries’ use of BIM technology.
In this article, we will talk about the 4 levels of BIM, including what they are and how they affect project development.
BIM levels refer to different stages of development and collaboration in the use of BIM technology in the construction and architecture industries. The BIM levels provide a framework to assess the maturity and sophistication of BIM implementation in a project or organisation.
You might want to learn more about the steps, strategy, and tips on how to implement BIM in a company before we talk about levels. You can read that article to learn more about the subjects.
Moving from one level to the next typically involves increased collaboration, the integration of information, and the use of more advanced BIM technologies and processes. ASC Technology Solutions LLC explained that the levels are commonly categorised as follows:
Level 1 BIM: 2D Drawings and 3D digital models
Project teams that work across multiple trades create 3-dimensional computer-aided design (CAD) models using conceptual 2D drawings. Common Data Environment (CDE), which is typically run by the contractors, is used to share 3D models in accordance with CAD standards. Because project stakeholders publish and manage their data independently, this BIM level is regarded as partial collaboration.
Actually, there is a level 0 BIM that is one level lower than level 1. The project at level 0 still uses 2D drawings using computer-aided design that include needed data. As a result, the BIM level is regarded as having no or zero collaboration among project stakeholders who exchange hard copies of files, drawings, documents, etc.
Level 2 BIM: A digital platform with several 3D models for various project teams
Working with 3D BIM models, contractors, structural engineers, architects, designers, and other project stakeholders exchange data in CDE. Although multidisciplinary project teams may not always work on a single file, they often utilize Level 2 IFC (Industry Foundation Class) files. At this stage, various project teams collaborate with one another.
Level 3 BIM: Single shared 3D model for various project teams to work on
In Level 3 BIM, collaboration is taken to a whole new level by adding a single, shared project model that everyone involved can see and change at any time. Throughout the lifecycle of a project, this centralised model makes it easier for everyone to work together. It is possible for information to be shared and updated instantly, which makes project development more flexible and quick. There is a high level of interoperability and data exchange between project participants at Level 3.
Level 4 BIM: Accompanying 3D model with extra time information
In Level 4 BIM, the BIM model has an extra part called “time” added to it. During the pre construction stage, level-wise construction scheduling that takes into account the different parts of the building helps everyone involved in the project plan their actions so that the project doesn’t run behind schedule.
What are 4 levels of BIM (Image by Medium)
Comparison of BIM Levels
The key differences between BIM levels are the depth of collaboration, the use of 3D models, and the level of interoperability. As BIM levels increase so does the efficiency of communication, coordination, and data sharing among project stakeholders, resulting in better-informed decision-making and streamlined workflows. Check out the table below for a quick look at the differences between BIM levels.
| BIM Level | Collaboration | Model Integration | Automation | Interoperability |
| Level 1 | Limited | Separate Models | None | Basic |
| Level 2 | Improved | Federated Model | None | Advanced |
| Level 3 | Seamless | Shared Project Model | None | High |
| Level 4 | Advanced | Intelligent Model | Automation | High |
Benefits of Implementing Higher BIM Levels
Higher levels of BIM (Building Information Modelling) have a lot of important benefits in the construction and project management fields. One big benefit is that project stakeholders can work together better. Higher levels of BIM make communication easier, which cuts down on gaps and improves the overall efficiency of the project. Because integration and collaboration are stronger at these higher levels, mistakes and extra work are less likely to happen.
Another important benefit is that it helps people make better decisions, especially at Level 4 BIM. Automation and smart models help project managers make smart decisions, which improves many parts of the project management process. The saved time and money are used more efficiently throughout the whole project lifecycle, from planning and building to running the project.
One of the best things about it is that it makes projects more likely to work in the future. As technology keeps getting better, projects that use higher levels of BIM are ready to adapt and use new technologies. This flexibility not only keeps investments safe, but it also helps projects stay on the cutting edge of new ideas in the building industry.
Overall, using higher levels of BIM leads to better teamwork, fewer mistakes, smarter decisions, more efficiency throughout the lifecycle of a project, and planning for future success. To sum it up, here are the benefits of implementing higher BIM levels:.
- Enhanced Collaboration: Higher BIM levels promote seamless collaboration among project stakeholders, reducing communication gaps and improving overall project efficiency.
- Reduced Errors and Rework: Integration and collaboration at higher BIM levels lead to better coordination and minimise errors and the need for costly rework.
- Improved Decision-Making: Level 4 BIM, with its automation and intelligent models, enables informed decision-making, optimising project management processes.
- Efficient Project Lifecycle: From design to construction and operation, higher BIM levels ensure a more streamlined and efficient project lifecycle.
- Future-Proofing Projects: As technology advances, projects implemented at higher BIM levels are better equipped to adapt and leverage emerging technologies, future-proofing investments.
Even though BIM has a lot of benefits, some people aren’t sure if small businesses should use it. Does BIM work for small projects? Read the piece to find out more about the topics.
Conclusion
To sum up, every AEC (Architecture, Engineering, and Construction) professional needs a firm grasp of BIM’s four tiers. The progression from Level 1 to Level 4 represents a direction towards more integration, automation, and cooperation. Organisations can enhance project outcomes and stay ahead of technological innovation in the construction and infrastructure sectors by embracing higher BIM levels.
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