Loading Experience...
Design-Led Project Delivery
Six steps from the first site survey to the day the trail opens. Permit drawings, environmental checks and post-build support are part of the scope, not extras.
Our software calculates rider speed, jump trajectories and earthwork volumes as we draw the line, so we can fit the trail to the terrain rather than reshape the terrain to fit the trail. Less digging, and a better ride.
Environmentally responsible by design: We dig only where the trail will be, using native material exclusively. Vegetation strips are preserved, side slopes are restored with original topsoil, and our hydrological modelling ensures drainage follows natural watershed patterns, routing surface water away from the trail and into stable, natural channels. No imported fill, no unnecessary clearing. Just precise earthwork that respects the landscape and satisfies environmental review requirements.
Our team developed our own engineering platform specifically for mountain bike trail infrastructure. It combines physics simulation, terrain analysis, and construction documentation into a single, validated workflow. No general‑purpose CAD software adapted for trails. Every algorithm is built on established civil‑engineering, hydrology and BIM methods, so the design package stands up to permitting review, insurance assessment, and BIM coordination.
A design a client can turn over in their hands.
How the trail behaves under a rider, validated before a single shovel hits the ground.
Every jump trajectory is computed via 4th‑order Runge‑Kutta integration including aerodynamic drag, then checked against equivalent‑fall‑height limits and safer‑landing criteria. Lip angle and landing curvature are matched to deliver tangent‑to‑velocity touchdown, the geometry condition that makes a jump safe to land at the speed it's actually approached at.
Speed is propagated continuously along the alignment using a cycling power model, accounting for grade, rolling resistance, drag and corner radius. Every berm, roller, and feature geometry is tuned to the speed riders actually reach there.
From LIDAR to drainage, the trail is engineered to work with the watershed, not against it.
Catchment delineation runs on LIDAR DEMs using D8 flow routing with priority‑flood and hybrid breach‑fill conditioning, preserving natural drainage through the trail corridor. Culverts are sized via Manning's equation.
Soil loss risk is mapped per‑cell using RUSLE combined with a sediment transport index and height‑above‑nearest‑drainage. Red zones (concentrated flow, near‑stream, high‑erosivity slopes) are identified and redesigned before they become maintenance problems.
Permit‑ready engineering deliverables that satisfy civil reviewers and BIM workflows.
Cut, fill, topsoil stripping and net haul volumes are computed cross‑section by cross‑section using the Average End Area method. Volumes drive realistic budgets and eliminate the cost surprises that come from under‑estimated earthwork scope.
Horizontal alignments use Clothoid‑Circle‑Clothoid (Euler spiral) transitions, the same geometry used in road and rail design. Every project ships with a complete deliverable set: PDF design booklet (plan view + longitudinal profile + per-jump safety analysis), DXF drawings, LandXML (alignment, trail surface TIN, turn stakeout CgPoints with arc centres, radius and TS/SC/CS/ST transition stations), OBJ 3D model, GPX field track, and a POV ride preview. IFC 4x3 export available for BIM coordination.
The same model goes from our screen to the machine to the finished trail, so nothing is left to interpretation on site. The reasoning behind every feature is written down in a form a permitting officer or insurance reviewer can check.
We start with high‑resolution LIDAR, constraint mapping, and hydrological modelling. We analyse soil, water flow, catchment areas, and ecosystem factors, so early decisions are based on real data and not assumptions. Understanding how water moves across the site means trails stay rideable longer and require less repair after storms.
Every trail line is designed in a digital 3D model, with speed, flow, jump geometry, and rider experience validated virtually. Design intent matches what gets built, not trial‑and‑error in the field.
We simulate rider dynamics, including speed, trajectories, G‑forces, and landings, to identify risky elements before they exist in the real world. If a feature only works at one speed, we find out here, not on opening day.
We produce permitting engineering drawings and technical documentation tailored to local regulatory requirements. We coordinate with local authorities, partners, or civil engineers as needed so your project clears permitting checkpoints efficiently.
In Slovenia we build with our own experienced crew. Internationally we coordinate with trusted local build partners or your contractor. Either way, we make sure onsite execution matches the digital model, with construction guidance for machines and crews, sequencing for earthworks and feature shaping, and real‑time validation against design targets.
After construction, we deliver as‑built documentation, safety assessment reports, and maintenance planning guidance. These deliverables help reduce liability, organise future work, and support operations long after opening.
From terrain data to a finished trail design, on video
Lab2Dirt Build Process: from terrain data to finished trail (1:44)
Inside Lab2Dirt: Data‑Driven Trail Design
Designing MTB Trails with Digital Terrain Models
Trail Design to Trail Reality
Simulation vs. Reality
Every feature at Ferjanka went through these six steps. Come and ride the result.
We build as well as design. Ferjanka is our own park, and it shows what the method delivers:
We will go through your budget, timeline and the riders you want to serve, then tell you which of these steps you need and what each one costs.
Start Your Project
