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OLE We carry out both height and stagger and coordinated surveys of OLE structures and equipment for remodelling, renewals and as-built (acceptance) purposes. Surveys are coordinated and referenced to PGMs for grid and elevation. We can deliver the results as 3D data files in GENIO (MXrail), AutoCad or Microstation formats or, alternatively or as well as, we can also produce schedules as Height and Stagger spreadsheets.OLE survey by non-contact methods does not require an isolation. For simple height and stagger surveys we would use the Hilti Laser (non-contact) Height & Stagger gauge. For more complex requirements we would survey the contact and catenary wires together with droptubes and any structure points by non-contact methods using the laser built in to the total station. For even more complex areas requiring full modelling we would use our 3D scanning techniques. Technologies • Digital Levels • Total stations • 3D scanners • Kinematic scanners
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