Page 240 - Alderney Regional Environmental Assessment of Renewable Energy: Environmental Report
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Alderney
Regional Environmental Assessment of Renewable Energy:
Environmental Report
7.3.2.15Summary
Table 39.
Assessment of the potential effects of the Draft Plan on commercial and recreational shipping and navigation
Development
Phase
Impact Pathway
Exposure to Change
(Magnitude and
Likelihood)
Sensitivity of
Change
Importance of
Feature
Significance
Mitigation
Residual Impact
Tidal Stream
Turbines
Survey
Collision risk
N-L
L-M
L-M
Minor/Insignificant
-
I-
Changes to commercial shipping movements
N-L
M
L-M
Minor/Insignificant
-
-
Construction
Collision risk
L-M
L-M
L-M
Moderate-Insignificant
Section 7.3.2.13
Minor/Insignificant
Changes to commercial shipping movements
L-M
M
L-M
Moderate-Insignificant
Section 7.3.2.13
Minor/Insignificant
Effects on small craft navigation
M
M
L-M
Moderate-Insignificant
Section 7.3.2.13
Minor/Insignificant
Potential for mooring lines to become a
navigational hazard
N-L
M
L-M
Minor/Insignificant
-
-
Potential for any marker buoys to become a
navigational hazard
N-L
L
L-M
Minor/Insignificant
-
-
Increased/altered steaming times and distances
L-M
M
L-M
Insignificant to Moderate
Section 7.3.2.13
Insignificant to
Moderate
Reduced visibility when barges and construction
equipment obstruct views
N-L
L
L-M
Minor/Insignificant
-
-
Lighting of tidal works and structures causing
confusion to passing vessels
N-L
L
L-M
Minor/Insignificant
-
-
Changes to risk management and emergency
response
N-M
M
L-M
Moderate-Insignificant
Section 7.3.2.13
Minor/Insignificant
Operation
Collision risk
L-H
L-M
L-M
Major-Insignificant
Section 7.3.2.13
Minor/Insignificant
Changes to commercial shipping movements
N-L
M
L-M
Minor/Insignificant
-
-
Effects on small craft navigation
L-M
M
L-M
Moderate-Insignificant
Section 7.3.2.13
Minor/Insignificant
Potential for mooring lines to become a
navigational hazard
N-L
M
L-M
Minor/Insignificant
-
-
Potential for any marker buoys to become a
navigational hazard
N-L
L
L-M
Minor/Insignificant
-
-
Increased/altered steaming times and distances
N-L
M
L-M
Minor/Insignificant
-
-
Reduced visibility when barges and construction
equipment obstruct views
N-L
L
L-M
Minor/Insignificant
-
-
Potential for Structures and Cabling to Interfere
with Navigational Equipment
N-L
L
L-M
Minor/Insignificant
-
-
Potential for equipment parts to become detached
from devices
N-l
L
L-M
Insignificant
-
-
Lighting of tidal works and structures causing
confusion to passing vessels
N-L
L
L-M
Insignificant
-
-
Changes to risk management and emergency
response
N-M
M
L-M
Moderate-Insignificant
Section 7.3.2.13
Minor/Insignificant
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