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ExVol is a product to GUARANTEE your signal sighting lines are not obscured leading the rework following the signal sighting committee meeting.
This can also be used for any features/assets along the railway where sighting is imperative eg Speed Boards or Level Crossings.
The current practice of 2D site lines does not provide an efficient solutions and could well increase project costs unnecessarily.
ExVol has been developed to work within conventional BIM model structure employed on Network Rail projects. Exclusion Volumes can be created early in the project lifecycle, using Network Rail's GeoRINM model data, ensuring suppliers work around the derived exclusion volumes.
This ensures clashes/obscurations are not discovered during Signal sighting committee meetings, derisking the probability of delay of gaining approvals.