RAIL INFRASTRUCTURE DIAGNOSTICS
Ballast condition drives track performance. We measure it without digging.
Precision rail surveying with science-based, field-proven methods
Fouled ballast loses its ability to drain water and hold track geometry, accelerating deterioration and raising derailment risk. KHEERAN scans the track centre and both shoulders in a single pass, producing a continuous profile of your substructure — where fouling starts, how thick the clean ballast is, and where water is trapped.
Ballast investigation with multi-frequency GPR (400 MHz–2 GHz).
Rail track geometry measurement and deterioration trending.
Railway asset scanning and clearance mapping with LiDAR.
RAPID, NON-DESTRUCTIVE, CONTINUOUS
We manage your survey from scoping to decision-ready report.
Three services, one integrated picture of your track
Survey data your maintenance planners can act on — substructure, geometry and assets in one campaign
Ballast Investigation with GPR
Continuous mapping of ballast fouling, clean-ballast thickness and trapped water using multi-frequency GPR — calibrated to your ballast and reported by chainage.
Rail Track Geometry
Track geometry scanning that locates gauge, alignment, twist and surface defects — and ties geometry faults back to their substructure causes.
Railway Asset Scanning with LiDAR
High-density LiDAR capture of track assets, structures and clearances for inventory, condition assessment and 3D modelling.
Ballast Investigation with GPR
Continuous mapping of ballast fouling, clean-ballast thickness and trapped water using multi-frequency GPR — calibrated to your ballast and reported by chainage.
Rail Track Geometry
Track geometry scanning that locates gauge, alignment, twist and surface defects — and ties geometry faults back to their substructure causes.
Railway Asset Scanning with LiDAR
High-density LiDAR capture of track assets, structures and clearances for inventory, condition assessment and 3D modelling.
We operate across Canada, USA, Brazil and Australia
Generating more value from every maintenance dollar with continuous track intelligence
Survey Lines per Pass
Max Antenna Frequency (MHz)
Hours to First Results
Countries Served
From heavy-haul to transit, our surveys inform real maintenance decisions
Our projects span ballast investigations, geometry campaigns and LiDAR asset capture
LiDAR Railway Asset Scan
A representative KHEERAN LiDAR asset-scanning engagement — the scope and deliverables a typical project provides.
Scope. High-density LiDAR capture of a rail corridor: track, turnouts, signals, catenary or third-rail infrastructure, platforms, bridges, tunnels and lineside assets, together with the surrounding terrain.
Method. Mobile LiDAR scanning from a hi-rail platform produces a georeferenced 3D point cloud of the entire corridor in a single pass. The cloud is classified — rail, structures, vegetation, ground — and analysed for structure gauge and clearance envelopes against your loading gauge requirements.
Deliverables. Classified, georeferenced point cloud; asset inventory with locations and attributes; clearance analysis reports flagging infringements; vegetation encroachment mapping; and 3D models ready for design, simulation or asset-management systems. Combined with our GPR and geometry services, the result is a complete picture of the corridor — above and below the ballast line.
Planning an asset scan? Talk to us →
Rail Track Geometry Campaign
A representative KHEERAN track geometry engagement — the scope and deliverables a typical campaign provides.
Scope. Geometry measurement across a subdivision or network segment: gauge, alignment, surface (profile), twist and cross-level, captured continuously and referenced to your chainage or milepost system.
Method. Vehicle-mounted geometry measurement with repeatable positioning, so successive campaigns overlay precisely. Exceptions are reported against the thresholds of your track class and standards, and repeat runs build deterioration trends segment by segment.
Deliverables. Exception reports with locations and severities, geometry-quality indices by segment, deterioration trending between campaigns, and — when combined with our GPR substructure data — root-cause pairing that distinguishes geometry faults caused by fouled ballast, trapped water or formation problems from surface-level defects. Maintenance gets fixed where the cause is, not just where the symptom shows.
Planning a geometry campaign? Talk to us →
GPR Ballast Investigation Programme
A representative KHEERAN ballast investigation — the scope and deliverables a typical engagement provides.
Scope. Continuous substructure survey of mainline trackage: track centre and both ballast shoulders captured in a single pass from a hi-rail vehicle at normal hi-rail speeds, with GPS positioning and video asset mapping throughout. No excavation, minimal possession time.
Method. Multi-frequency GPR — 2 GHz horn antennas for fouling detection via void-scattering analysis, 400 MHz antennas for deep substructure layering — cross-checked against targeted calibration samples with sieve analysis, so fouling classifications reflect the client's actual ballast.
Deliverables. Fouling categories (clean through highly fouled) by chainage for centre and shoulders, clean-ballast thickness profiles, trapped-water and ballast-pocket flags, GIS condition mapping, statistical summaries by segment, and prioritized recommendations for undercutting, shoulder cleaning and drainage remediation. First-pass results within 24 hours of survey completion.
Planning a ballast investigation? Talk to us →