1
Tables
of Assumptions
Table 1‑1 HAZID LNG Transit Route Segments
While
the HAZID reviewed the LNG’s carriers approach with respect to distinctive sections
of channel, the MQRA risk analysis will use the segment approach presented in
Table I-2 in order to provide the results of the analysis over a consistent
length (in this case 7.3 km segment length minimum, as required by HK
Government, a length consistent with prior risk studies at Ma Wan)..
Table 1‑2 LNG Transit Route Segments
Table 1‑3 LNG Carrier Operation Basis
Table 1‑4
Meteorological Data
Table 1‑5
|
Wind Direction |
Stability and Windspeed (m/s) Category |
|||
|
B - 2.9 |
F - 2.2 |
D - 3.3 |
D - 7 |
|
|
N |
0.75% |
0.45% |
1.24% |
8.91% |
|
NNE |
2.87% |
0.89% |
3.27% |
7.71% |
|
ENE |
4.08% |
0.50% |
2.12% |
20.78% |
|
E |
4.17% |
0.56% |
2.09% |
10.81% |
|
ESE |
1.85% |
0.27% |
1.06% |
1.31% |
|
SSE |
1.28% |
0.14% |
0.90% |
1.11% |
|
S |
1.08% |
0.18% |
0.80% |
1.89% |
|
SSW |
1.96% |
0.15% |
0.98% |
3.30% |
|
WSW |
1.12% |
0.16% |
0.77% |
4.42% |
|
W |
0.58% |
0.19% |
0.46% |
0.94% |
|
WNW |
0.28% |
0.19% |
0.40% |
0.21% |
|
NNW |
0.21% |
0.19% |
0.25% |
0.17% |
|
Total |
20.24% |
3.87% |
14.35% |
61.54% |
Table 1‑6
|
Wind Direction |
Stability and Windspeed (m/s) Category |
|||
|
B - 2.8 |
F - 2.1 |
D - 3.3 |
D - 7.0 |
|
|
N |
0.61% |
0.35% |
1.20% |
1.57% |
|
NNE |
1.20% |
0.82% |
2.22% |
4.38% |
|
ENE |
2.32% |
0.76% |
2.45% |
20.43% |
|
E |
1.52% |
0.37% |
1.28% |
12.67% |
|
ESE |
0.33% |
0.23% |
0.40% |
0.73% |
|
SSE |
0.24% |
0.25% |
0.33% |
0.19% |
|
S |
6.38% |
0.81% |
3.24% |
8.32% |
|
SSW |
3.25% |
0.56% |
1.62% |
4.16% |
|
WSW |
1.54% |
0.27% |
0.70% |
1.47% |
|
W |
1.46% |
0.17% |
0.52% |
0.87% |
|
WNW |
1.27% |
0.23% |
0.76% |
1.67% |
|
NNW |
0.71% |
0.29% |
0.93% |
1.97% |
|
Total |
20.83% |
5.09% |
15.64% |
58.44% |
Table 1‑7 Ching Pak House (CPH) Station
Meteorological Data (Daytime only)
|
Wind Direction |
Stability and Windspeed (m/s) Category |
|||
|
B - 3.1 |
F - 2.2 |
D - 3.3 |
D - 7.0 |
|
|
N |
0.97% |
0.67% |
0.95% |
0.51% |
|
NNE |
1.37% |
0.94% |
2.37% |
1.15% |
|
ENE |
1.96% |
0.99% |
3.89% |
3.81% |
|
E |
1.28% |
0.64% |
2.79% |
3.18% |
|
ESE |
2.35% |
0.85% |
4.39% |
9.61% |
|
SSE |
5.50% |
1.05% |
4.02% |
5.97% |
|
S |
7.44% |
0.77% |
4.28% |
5.46% |
|
SSW |
1.63% |
0.38% |
1.39% |
0.33% |
|
WSW |
0.58% |
0.14% |
0.30% |
0.03% |
|
W |
1.78% |
0.38% |
1.13% |
0.62% |
|
WNW |
1.26% |
0.71% |
1.77% |
0.41% |
|
NNW |
2.13% |
1.25% |
3.02% |
1.58% |
|
Total |
28.25% |
8.78% |
30.30% |
32.67% |
Table 1‑8 Tai Mo To Station
(TMT) Meteorological Data (Daytime only)
|
Wind Direction |
Stability and Windspeed (m/s) Category |
|||
|
B - 3.0 |
F - 2.3 |
D - 3.3 |
D - 7 |
|
|
N |
2.49% |
0.61% |
3.01% |
2.72% |
|
NNE |
1.90% |
1.05% |
2.69% |
1.87% |
|
ENE |
1.36% |
1.27% |
2.64% |
0.55% |
|
E |
2.26% |
1.21% |
3.49% |
4.63% |
|
ESE |
3.52% |
0.79% |
3.93% |
15.54% |
|
SSE |
1.89% |
0.65% |
1.94% |
4.41% |
|
S |
1.08% |
0.51% |
1.13% |
1.63% |
|
SSW |
1.40% |
0.30% |
1.01% |
1.74% |
|
WSW |
1.24% |
0.33% |
1.06% |
1.05% |
|
W |
4.20% |
0.36% |
1.51% |
1.06% |
|
WNW |
5.83% |
0.30% |
1.79% |
2.33% |
|
NNW |
1.26% |
0.35% |
1.23% |
0.86% |
|
Total |
28.44% |
7.72% |
25.44% |
38.39% |
Table 1‑9 Black
Point (Shau Chau Station)
Meteorological Data
|
Wind Direction |
Stability and Windspeed (m/s) Category |
||||||
|
Day |
Night |
||||||
|
B - 2.5 |
F - 2.0 |
D - 3.0 |
D - 7.0 |
F - 2.0 |
D - 3.0 |
D - 7.0 |
|
|
N |
2.48% |
0.92% |
1.37% |
13.75% |
2.08% |
0.89% |
9.93% |
|
NNE |
0.72% |
0.61% |
0.76% |
4.38% |
1.78% |
0.84% |
7.12% |
|
ENE |
0.55% |
0.61% |
0.59% |
0.55% |
1.89% |
0.76% |
0.95% |
|
E |
2.00% |
1.57% |
2.43% |
6.07% |
6.69% |
2.97% |
9.53% |
|
ESE |
1.68% |
0.90% |
1.32% |
15.98% |
3.82% |
1.84% |
20.08% |
|
SSE |
1.06% |
0.61% |
0.36% |
3.12% |
2.28% |
0.60% |
3.83% |
|
S |
2.43% |
0.71% |
0.65% |
3.64% |
1.81% |
0.74% |
3.88% |
|
SSW |
3.35% |
0.86% |
1.39% |
9.04% |
2.06% |
1.01% |
6.91% |
|
WSW |
0.07% |
0.16% |
0.05% |
0.02% |
0.23% |
0.02% |
0.04% |
|
W |
0.08% |
0.09% |
0.01% |
0.01% |
0.11% |
0.00% |
0.01% |
|
WNW |
1.58% |
0.35% |
0.21% |
0.07% |
0.62% |
0.04% |
0.05% |
|
NNW |
3.78% |
0.74% |
1.09% |
5.22% |
1.59% |
0.53% |
2.45% |
|
Total |
19.79% |
8.12% |
10.23% |
61.85% |
24.95% |
10.24% |
64.81% |
Table 1‑10
|
Wind Direction |
Stability and Windspeed (m/s) Category |
||||||
|
Day |
Night |
||||||
|
B - 2.5 |
F - 2.0 |
D - 3.0 |
D - 7.0 |
F - 2.0 |
D - 3.0 |
D - 7.0 |
|
|
N |
1.57% |
1.92% |
1.31% |
11.42% |
6.05% |
1.31% |
13.14% |
|
NNE |
1.60% |
0.94% |
1.34% |
4.21% |
3.02% |
1.20% |
4.36% |
|
ENE |
0.81% |
0.68% |
0.92% |
3.05% |
3.26% |
1.56% |
5.02% |
|
E |
0.87% |
0.65% |
1.39% |
14.86% |
3.57% |
2.19% |
19.48% |
|
ESE |
3.18% |
0.62% |
1.38% |
18.32% |
2.02% |
0.75% |
9.32% |
|
SSE |
2.10% |
0.44% |
0.93% |
2.92% |
1.21% |
0.36% |
2.29% |
|
S |
2.41% |
0.35% |
0.72% |
2.77% |
1.35% |
0.53% |
3.47% |
|
SSW |
1.78% |
0.27% |
0.67% |
4.97% |
1.40% |
0.58% |
4.13% |
|
WSW |
0.89% |
0.23% |
0.44% |
2.10% |
1.20% |
0.54% |
1.80% |
|
W |
0.40% |
0.27% |
0.28% |
0.79% |
1.27% |
0.41% |
0.83% |
|
WNW |
0.22% |
0.17% |
0.09% |
0.30% |
0.61% |
0.10% |
0.25% |
|
NNW |
0.47% |
0.22% |
0.21% |
1.57% |
0.65% |
0.18% |
0.59% |
|
Total |
16.30% |
6.74% |
9.68% |
67.28% |
25.63% |
9.70% |
64.67% |
Figure 1‑1
Wind Rose Data for Six Weather Stations Considered
Table 1‑11
ERM Time Period Classification
|
Time Period |
Definition |
Hours in a week |
Time Fraction |
|
Night |
7pm – 7am |
84 |
0.500 |
|
Peak |
Monday-Friday 7am-9am, 5pm-7pm Saturday 7am-9am, 1pm-3pm |
24 |
0.143 |
|
Weekday |
9am – 5pm (including Sat 9am-1pm) |
44 |
0.262 |
|
Weekend Day |
Saturday 3pm-7pm Sunday 7am-7pm |
16 |
0.095 |
|
|
Total |
168 |
|
Table 1‑12
|
PVS Zone |
Provided by |
ERM Analysis |
||
|
2011 |
2021 |
2011 |
2021 |
|
|
001 |
51,726 |
53,849 |
77,838 |
72,514 |
|
002 |
0 |
0 |
0 |
0 |
|
003 |
48,603 |
48,741 |
54,077 |
50,547 |
|
012 |
7,082 |
7,201 |
14,230 |
|