Simulate construction,
before you build.
Our software lets you simulate and steer complex construction processes virtually, long before the first machine arrives.
Pick the starting point for your role:
We simulate construction sequences – true to life and iteratively
What we are
- Specialists in parametrised construction process simulation.
- The missing link between BIM model and cost estimate: the fully calculated construction sequence.
- A partner for sound planning and execution decisions based on real output data.
What we are not
- Not another BIM or CAD tool.
- Not a replacement for your planning — we provide the basis for decisions.
- Not a black box: every construction sequence stays traceable.
Where construction projects most often stall
The industry has digitalised. Productivity has not moved. The problem was never the tool, but three risks that decide the schedule, the budget and everyone’s nerves. That is exactly where we start, early.
Variations
Unclear interfaces and gaps in the planning only become expensively visible on site.
Delay
Overlooked dependencies tip sequences over. Days quickly turn into weeks.
Complex communication
Many parties, many assumptions: misunderstandings cost time, money and trust.
Proven on demanding projects
Our solutions are proven on demanding schemes, from rail junctions under live traffic to major tunnel projects. There they have held up in day-to-day project work and safeguarded decisions exactly where they count.
“Gaming meets construction. With dProB, BII GmbH has managed to make our experts’ knowledge of construction processes tangible in a playful, virtual way. A disruptive approach with the potential to simplify a great deal.”
“Thanks to dProB we can now plan construction processes more efficiently. The software helps us minimise risks and optimise sequences, which noticeably reduces disruption on site. The dynamic simulations let my team work better with our clients and complete our projects more successfully.”
“With dProB we can reduce the disruption our customers experience from construction sites and simulate sequences in detail. That avoids risks and lets us optimise processes together with our construction partners.”
“Following a successful 100-day proof of concept and a follow-up programme with the DB Mindbox, we have now used dProB across various projects and project phases. For validating and optimising track possessions, construction sequences, site setup, logistics planning and much more, we see it as a logical next step towards digitalising our planning right through into construction.”
“Until now, BIM has focused on the initial state and the finished end state, but not on the question of which construction processes take us from state A to state B. dProB lets us answer that question. We are extending the world of static clashes between BIM models to dynamic clashes in the construction process — an interaction of construction plant with BIM models.”
“At last the model starts to move — whether for designing site logistics or verifying possessions for bridge insertions. With dProB from BII, any construction process can be built up to whatever level of detail you need. For me it is a tool both for capturing knowledge and for properly verifying planning before execution.”
“Virtual construction process planning is the missing key to implementing a complete digital workflow across a company. The gaming industry knows how to plan virtual sequences intuitively in changing environments and make them comprehensible to everyone through graphics.”
“Simulating complex worlds has been possible in the gaming industry for some time, but with dProB the tools for it are now available to the construction industry as well. In our project we were able to simulate and validate complex processes, from site logistics through to erecting individual structures, and make them tangible for everyone involved. dProB turns static IFC models into something dynamic and into a genuinely shared planning basis.”
The more complex the project,
the more valuable the simulation
An animation only visualises. A simulation calculates. Based on real project and construction data, sequences can be run along the timeline, conflicts spotted early and scenarios compared before they get expensive on site. Because where many factors meet, every assumption becomes a risk. Typical drivers where well-founded decisions pay off:
Three routes to more certainty
dProB
Process simulation for complex construction projects — for intuitive understanding and faster approvals.
Explore the software →
Process Engineering
Experience meets technology. Our process engineers develop robust construction sequences together with you.
Discuss your project →
Construction Management
The next level of site management through digital control room solutions. For more transparency during execution.
See the control room →Where BIM stops today, we begin.
Since 2018 we have set the standard in process simulation: our team combines leading software engineering expertise with genuine industry experience from construction and turns it into solutions that measurably save time and money in practice. Having concluded a framework contract with Deutsche Bahn once again is striking confirmation of that pioneering role.
Frequently asked questions
The key answers on simulation, software and working with us.
See all questions →BII GmbH offers four services: the dProB simulation software for 4D construction process simulation, process engineering as a hands-on consulting service, individually developed construction management solutions for site coordination, and simbox, an AI software for construction sequence planning. You run dProB in-house yourself; with process engineering the process engineers at BII GmbH carry out the simulation for you.
dProB is an input-based simulation software by BII GmbH that runs construction sequences through as a 4D simulation in advance. dProB links your imported BIM model with schedules, resources and the output rates of your equipment, and makes spatial and temporal dependencies visible in the model. That way you spot conflicts and bottlenecks yourself before they get expensive on site. dProB is a Windows desktop application and runs locally on your machine.
No. dProB does not replace CAD, BIM or scheduling software, it complements them. dProB is explicitly not a modelling tool: imported IFC and FBX models are visualised and can only be edited to a limited degree. Nor does dProB replace conventional schedules. You import BIM data, use it to validate planning assumptions and construction sequences, and feed the results back into your digital workflow — your planning stays where it is.
The easiest route is a short demo: you describe your project, we show you dProB using a sequence similar to yours. Get in touch via the contact form, by email to contact@bii-gmbh.com or by phone on +49 151 11659235 — we respond within one working day. Whether the software or the consulting service is the better fit is something we work out together.
Make your decisions before the site makes them for you.
Tell us briefly about your project — we will get back to you personally within one working day.
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