Galloper Wind Farm Project - National Infrastructure Planning

2842_SLVIA
The cumulative assessment does not address the magnitude or significance of
the effects arising from the individual developments themselves included
within the cumulative assessment, but looks at the seascape and visual
effects arising from the combination of turbines at proposed offshore wind
farm with one or more other wind farm developments within the parameters
identified.
The cumulative assessment examines the same groups of seascape /
landscape and visual receptors as the assessment for the main scheme,
though different viewpoints may be used in order to better represent the
likely range of effects arising from the combination of schemes. The
assessment is informed by cumulative ZTVs, showing the extent of visual
effects of the schemes in different colours to illustrate where visibility of
more than one development is likely to arise. Cumulative wireframes are
prepared which show each of the developments in different colours so that
they are each readily identifiable. Cumulative photomontages are also
prepared.
In addition, the effects on users of routes through the area, from which wind
farms may be sequentially visible as one passes through the landscape are
also considered. This assessment is based on the desk study of ZTVs and aerial
photography, and site visits to travel along the routes being assessed.
The way in which the assessment is described and presented is varied
depending on the number and nature of scenarios which may arise. This
variation is needed in order to convey to the reader the key points of each
assessment. For example, the three different cumulative combinations that
may arise for an assessment in which there are two existing undetermined
applications can each be assessed individually. A situation in which there are
10 applications cannot reasonably be assessed in this way and the
developments may need to be grouped for analysis.
Cumulative Landscape and Seascape Effects
As set out above in the methodology for landscape and seascape effects, the
magnitude and significance of cumulative effects on the identified landscape
designations, landscape features and seascape character units are a function
of the baseline sensitivity of each receptor, the number and scale of the
proposed wind farms in that area and the overall size and shape of the
receptor / character area. Cumulative landscape and seascape effects will be
assessed for each receptor / character unit where they are affected by more
than one of the proposed wind farms.