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IFC 4.3 corridor: road, bridge, railway, river, power line, depot and tunnel
Free live webinar · Mon 14 Dec 2026 · 19:00 CET

99 IFC 4.3 concepts.Which ones are worth your attention?

One evening, one real infrastructure corridor. What is in the standard, and what is worth your time.

Marcin Pszczółka
Your hostMarcin PszczółkaopenBIM and IFC 4.3 for infrastructure. Instructor of the IFC Infrastructure Masterclass.
What is an IFC concept?

One pier. Six concepts.

Each kind of information about an object has its own concept: one agreed way to write it into the file, the same in every software. IFC 4.3 has 99.

Pier wall P1 of bridge BR-01 with its IFC data in Bonsai
Pier wall P1 · bridge BR-01 · from our file 03_Bridge_BEST_IFC4x3.ifc
  • What is it?Object Predefined TypeIfcColumn, pier stem
  • Which type?Object TypingPier wall 4000×800
  • Where does it belong?Spatial ContainmentBridge part P1
  • What is it made of?Material AssociationConcrete B45 MF40
  • Which code?Classification AssociationNS 3451: 222 Columns
  • How much?Quantity SetsQto_ColumnBaseQuantities
More examples

12 concepts. From survey to operation.

Project Global Positioning: Puts the whole file on the map, once.Project setup
Project Global Positioning

Puts the whole file on the map, once.

Annotation Geometry: Survey control points, right in the model.Survey
Annotation Geometry

Survey control points, right in the model.

Product Linear Placement: Places a sign at station 1+090, 5 m right.Concept & alignment
Product Linear Placement

Places a sign at station 1+090, 5 m right.

Element Interference: Keeps the clash inside the file.Detailed design
Element Interference

Keeps the clash inside the file.

Element Covering: Makes the deck membrane its own object.Detailed design
Element Covering

Makes the deck membrane its own object.

Lighting Geometry: Gives a luminaire its light data.Detailed design
Lighting Geometry

Gives a luminaire its light data.

Surface Geometry: The finished surface a paver can follow.Detailed design
Surface Geometry

The finished surface a paver can follow.

Control Assignment, Product Assignment, Sequential Connectivity: Links tasks and dates to the bridge.Construction
Control Assignment · Product Assignment · Sequential Connectivity

Links tasks and dates to the bridge.

CoG Geometry: Stores the centre of gravity for the lift.Construction
CoG Geometry

Stores the centre of gravity for the lift.

Control Flow: Shows which sensor controls which fan.Handover & operation
Control Flow

Shows which sensor controls which fan.

Property Sets for Performance: Records river gauge readings over time.Handover & operation
Property Sets for Performance

Records river gauge readings over time.

Group Assignment: Collects road signs into one asset register.Handover & operation
Group Assignment

Collects road signs into one asset register.

Images from the Road to BIM IFC 4.3 demo corridor.

The agenda

What we cover. One evening.

01Part

What is in IFC 4.3

What a concept is, and all 99 on one map.

IFC 4.3 file as text
02Part

The ones worth your attention

My shortlist for infrastructure, from survey to operation.

The Road to BIM IFC 4.3 corridor
03Part

Why use them

What each one saves, and for whom: designer, contractor, owner.

A bridge pier with its IFC data
04Part

How to pick the right ones

A simple way to choose the concepts for your next project.

Tunnel portal in the IFC 4.3 corridor
Bonus

Where AI helps

A short look at what AI can already do with the concepts.

AI agent report

Then your questions, live.

Save my free seat →Monday 14 December · 19:00 CET
Marcin Pszczółka, instructor of the IFC Infrastructure Masterclass
Your host

Marcin Pszczółka

I know where each of the 99 concepts fits, and which ones pay off on a real project.

openBIM and IFC 4.3 for infrastructure. Over 12 years as a designer, BIM Coordinator, BIM Manager and Product Manager. Instructor of the IFC Infrastructure Masterclass.

99 / 99concepts in the Road to BIM corridor
70+engineers taught
26countries
6continents
Co-founder of BIM Corner, 200+ articlesSpeaker at Trimble DimensionsbuildingSMART conferencesIFC 4.3 implementation in Trimble Quadri & NovapointE39 Kristiansand–Mandal highway, Norway
Replay of the live webinar on 5 October 2026, IFC 2x3 vs IFC 4.3: four screens from the session
Your free gift · last live session, 5 October

IFC 2x3 vs IFC 4.3. Yours right away.

One bridge, three files, one client’s IDS. The replay opens the moment you register.

Register and watch →
Questions

Before you register

What is an IFC concept?

One agreed way to write one kind of information about an object into an IFC file, for example its material or where it stands along a road. The same in every software. IFC 4.3 has 99.

Is it free?

Yes. Live on YouTube, no payment.

What time is it where I am?

19:00 CET, 18:00 London, 13:00 New York, 10:00 Los Angeles.

Will there be a recording?

Yes, by e-mail to everyone registered.

What is The Alignment?

Optional. A free e-mail course on BIM for infrastructure: 12 short lessons, one every two days, then our newsletter. Tick the box when you register if you want it.

You are invited · Monday 14 December 2026 · 19:00 CET

99 concepts. Pick the right ones.

Starts in—days—hrs—min—sec
Live session + Q&AReplay of our last webinar, right awayRecording by e-mail

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