A comprehensive Desktop Study (DTS) builds on the initial route engineering by
providing route descriptions and details about landing sites, geopolitical and cultural
issues, security concerns, geology, meteorology, oceanography, hazards, fisheries
and permit requirements. SubCom’s Desktop Study team uses this
information to refine the initial cable engineering recommendations to produce an
updated Straight Line Diagram (SLD), a drawing which shows cable armoring and
burial throughout the route. The DTS also defines a Route Position List (RPL) to be
used for the cable route survey and for making specific recommendations for survey
activities. In most cases, landing site visits are conducted by the DTS team to evaluate
the landing and meet with local officials to determine the viability of a specific site.
These meetings also assist early applications for permits and easements that may be
required for the project.