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Case Study

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Corridor survey for the Vyrnwy Frankton 132kV overhead line

Vyrnwy Frankton forms part of a wider portfolio of 132kV network projects that GGC is developing. StirlingX was appointed to provide an up-to-date baseline record of the route as the project progresses towards construction.

The Problem

GGC required a record of the full 50km route to support decision-making during development, including up to date aerial viewpoints. Changes along a corridor of this length, including standing water, vegetation growth towards the line and shifts in ground conditions, needed to be identified.

The Solution

StirlingX has completed a baseline survey of the full corridor, capturing continuous high-definition video with geo-referenced positioning along the entire route. Any location on the line can be found and reviewed directly.

  • Video fly-through data made available to GGC, with hosting and viewing options
  • Change detection to compare any future surveys with the previous ones, covering flood monitoring, vegetation encroachment and corridor change
  • Aviation clearances both civilian and military obtained, risk assessments, pre-mobilisation planning and survey execution managed by StirlingX

This survey establishes the baseline against which future surveys can be compared.

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The Outcomes

  • Baseline survey of the full 50km corridor completed in two days (42 km in the first day)
  • Geo-referenced HD video captured along the entire route and searchable by location
  • Baseline record established for change detection from the future surveys.

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