57.


The objective of the Cumulative Landscape and Visual Impact Assessment (CLVIA) is to describe, visually represent and assess the ways in which the proposed project will have additional impacts when considered together with other existing, consented or proposed projects and to identify related significant cumulative impacts arising as a result of the proposed project. The guiding principle in preparing the CLVIA is to ‘focus on the likely significant impacts and in particular those which are likely to influence the outcome of the consenting process’, in accordance with SNH guidance.


58.


The degree to which cumulative impacts occur, or may occur, as a result of more than one Development project being constructed are a result of:


• • • • •


The distance between individual Developments;


The interrelationship between their Zones of Theoretical Visibility (ZTV); The overall character of the landscape and its sensitivity to Developments; The siting and design of the Developments themselves; and The way in which the landscape is experienced.


29.6.2 Types of Cumulative Impact 59.


The CLVIA is not required to examine the total impact arising from a number of developments, but to look at the additional impacts, for example, due to the relationship between developments being discordant, and potentially reduced impacts, for example due to the relationship between developments being complementary. Two or more adjacent developments may complement one another, or may be discordant with one another, and it is the increased or reduced level of significance of impacts which arises as a result of this change that is assessed in the cumulative assessment.


60.


Cumulative impacts on landscape character arise when two or more developments, through the introduction of new landscape features, change the key characteristics of a landscape or change it to such an extent that they create a different ‘Development’ landscape type. Developments may also have a cumulative impact on the character of landscapes that are designated for their landscape value. Development proposals in nationally designated landscapes tends to be rare, therefore cumulative impacts on the character of designated landscapes tend to be indirect.


Preliminary Environmental Information May 2014


East Anglia THREE Offshore Development


Appendix 0 Example


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