Written by BVJune 26, 2026Railway ballast fouling is one of the most common and costly challenges in railway maintenance. KHEERAN Corporation specialises in the detection of railway ballast fouling using advanced multi-frequency GPR technology. As a result, railway owners can identify fouled zones early, plan targeted maintenance, and prevent premature track
Written by BVJune 13, 2026LiDAR — Light Detection and Ranging — fires laser pulses and times their return to record millions of precise 3D points. Mounted on a hi-rail vehicle, it builds a survey-accurate digital twin of an entire rail corridor in a single pass, with no need to walk the
Written by BVJune 13, 2026Track geometry is simply how the rails sit in space — their gauge, how straight they run, how level they are, and how those values change along the line. When geometry drifts outside safe limits, trains ride rough, rails and wheels wear faster, and in the worst
Written by BVJune 12, 2026On most railways, ballast maintenance is one of the largest recurring costs, and ballast fouling is the main driver of geometry deterioration. Understanding how it develops — and catching it early — is the difference between targeted maintenance and expensive, reactive renewal. How fouling develops Fouling is
Written by BVJune 12, 2026No single technology tells you everything about a railway corridor. A combined GPR, geometry and LiDAR railway survey gives a complete picture — what lies beneath the rail, how the track rides, and what stands beside it. Kheeran brings all three together in a single campaign, so
Written by BVJune 12, 2026Ballast is the layer of coarse, angular stone that holds track geometry and drains water away from the track structure. New ballast is full of air voids between the stones. As track ages, those voids fill with fine material — broken-down stone, windblown fines, coal dust, or
