RIEGL · lidar

RIEGL VZ-2000i Terrestrial Laser Scanner

The RIEGL VZ-2000i is a long-range terrestrial laser scanner designed for high-accuracy survey-grade scanning at ranges up to 2,500 m. The instrument employs RIEGL's Echo Digitisation and Online Waveform Processing technology for high-precision range measurement, with stated accuracy of 5 mm at 100 m. Acquisition speed is up to 500,000 measurements per second across a 100° vertical × 360° horizontal field of view. The VZ-2000i is positioned at the long-range, high-accuracy end of the terrestrial LiDAR market and is used principally for infrastructure, civil-engineering and large-scope structural-engineering surveys where the FARO Focus or Leica RTC360 range envelope is insufficient.

TRSC Application Commentary

TRSC specifies the RIEGL VZ-2000i on engagements where the asset scope or geometry exceeds the practical range envelope of the FARO Focus S350 (350 m) or Leica RTC360 (130 m). Typical applications include long-span bridge inspection where the scanner is positioned at one abutment and must capture the full deck and pier geometry, marine wharf surveys where the scanner cannot be positioned close to all elements, and infrastructure projects where a single scan station must cover hundreds of metres of structure. The principal trade-off is per-station scan time (significantly slower than the RTC360) and equipment cost; the VZ-2000i is therefore reserved for engagements where the range envelope justifies the slower acquisition. Operational notes: the long-range survey discipline differs from short-range building scanning — atmospheric conditions (humidity, dust) materially affect long-range accuracy, target placement at distance is critical, and registration of long-range datasets requires careful target geometry to avoid lever-arm rotation errors. TRSC sub-contracts the VZ-2000i deployment to specialist survey practitioners on engagements where the instrument is required, with TRSC engineering retained for the structural interpretation and reporting of the resulting point cloud. This separation of capture and interpretation maps to typical project commercial structure on long-range LiDAR engagements — the survey practitioner is engaged by the asset owner, contractor or principal engineer for the field-capture deliverable, and TRSC is engaged separately for the structural-engineering scope that uses the point cloud as input. The arrangement keeps the engineering accountability with the RPEQ engineer and the survey accountability with the licensed surveyor, which is the appropriate professional and regulatory split.

Enabled Investigations
  • Long-span bridge inspection
  • Marine wharf and jetty terrestrial scanning from limited positions
  • Infrastructure-scale as-built documentation
  • Long-range terrain and embankment surveys
Frequently Asked Questions

Application questions about RIEGL VZ-2000i Terrestrial Laser Scanner

When is the RIEGL VZ-2000i preferred over the Leica RTC360?
When the survey range exceeds approximately 130 m (the RTC360 envelope) — typical applications include long-span bridge inspection, large infrastructure projects, and marine surveys where the scanner cannot be positioned close to all elements. For typical building-scale work the RTC360 or FARO Focus remain TRSC default.
Does TRSC operate the VZ-2000i in-house?
TRSC sub-contracts VZ-2000i deployment to specialist survey practitioners on engagements where the long-range envelope is required. TRSC engineering retains responsibility for structural interpretation, deformation analysis and reporting of the resulting point-cloud dataset.
What atmospheric conditions affect long-range LiDAR accuracy?
Humidity, dust, smoke and atmospheric refraction all degrade long-range scan accuracy, with effects increasing non-linearly above approximately 500 m range. TRSC requires the survey practitioner to document atmospheric conditions at acquisition and to apply appropriate correction algorithms in the registered dataset before structural interpretation.