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UP Express LiDAR Scans

About The Project

Stationary LiDAR scanning at 4 locations along the Weston Subdivision/UP Express corridor (Bloor GO, Weston GO, Etobicoke North GO & UP Express elevated bridge) to capture cross sections of each train envelope.

Prior to scanning, top of rail was surveyed at each location for the client to determine the location where scanning would be focused.  Using the FARO scanning equipment, and coordinating with on-site flagging protection to anticipate coming trains, the LiDAR team would complete a scan of the chosen track location as each train passed over the course of a 16-hour day during regular train schedules.  Surveyors were mindful of safety concerns with scanning close to moving trains.

The client was provided with all cross sections from the scans at each location, which were extracted from the point cloud data.

Services Provided

  • 3D Laser Scanning

    With scanning, we provide our clients with a fast and easy solution to gather large quantities of information with a high degree of accuracy. Using the 3D laser scanner to gather point cloud data that contains both location and RGB information makes it easy for Groma’s customers to dimension and display cross sections. Point clouds are easily imported into AutoCAD or can be dimensioned right on the web using online tools.

  • GPS/Total Station

    Our field teams use Leica robotic Total Stations, Leica, Trimble, and Topcon GNSS units and Leica DNA03 digital levels to provide a wide range of services for projects of any size; includes topographical surveys, construction layout, control networks, deformation monitoring, site volume calculations, as-built surveys and much more.

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