398
J. Murawski and J. Woge Nielsen
Table 11.3 Comparison of fairways from the route atlas (RA), summer-winter (SW), springautumn pattern (SA) and combined designs (CMB), and routes optimized using the SeaPlanner
software (SPO) on east to west crossings of the Gulf of Finland. The fairways to each destination
are ordered from the north to the south. Time is given in hours:minutes, speed in knots and fuel
consumption in metric tons (mt)
Design
Harbour
Westwards going
Eastwards going
Time
Speed
Fuel
Time
Speed
Fuel
SW(north)
Saint
Petersburg
13:56
11.4
9.04
13:22
11.9
8.681
CMB
13:34
11.8
8.81
12:41
12.6
8.239
SPO(north)
13:16
11.9
8.608
12:28
12.6
8.088
RA
13:32
11.9
8.784
12:43
12.6
8.26
SW(south)
13:36
11.8
8.827
12:48
12.5
8.314
SPO(south)
13:33
11.7
8.79
12:36
12.6
8.181
SA
14:00
11.7
9.092
13:00
12.6
8.444
SW
Vyborg
11:50
11.3
7.681
11:24
11.7
7.406
SPO(north)
11:27
11.8
7.438
10:52
12.4
7.054
SPO(south)
11:45
11.8
7.635
11:08
12.7
7.225
RA
11:49
11.9
7.675
11:04
12.6
7.189
CMB
11:52
11.9
7.702
11:07
12.7
7.217
SA
12:14
11.9
7.945
11:21
12.8
7.373
RA
Ust-Luga
14:04
11.9
9.132
13:22
12.6
8.674
SW
12:02
11.8
7.817
11:26
12.5
7.423
SPO(north)
11:57
11.8
7.76
11:09
12.6
7.239
CMB
12:05
11.8
7.848
11:23
12.6
7.395
SPO(south)
12:08
11.8
7.878
11:13
12.7
7.285
SA
12:32
11.8
8.136
11:35
12.6
7.515
RA
Sillamäe
11:46
12.0
7.64
11:13
12.6
7.285
SW
11:14
12.0
7.293
10:35
12.7
6.872
CMB
11:07
12.0
7.215
10:28
12.7
6.801
SPO(north)
10:24
12.0
6.751
09:49
12.8
6.374
SPO(south)
10:40
11.9
6.931
10:01
12.8
6.498
SA
10:42
11.9
6.95
10:02
12.8
6.512
for this harbour. But having only one route to follow and many harbours to serve,
the existing network apparently fails to provide cost effective solutions for other
harbours in the Gulf of Finland such as Vyborg in the northern part of the gulf and
Ust-Luga and Sillamäe at the southern coast. The existing preset fairway system that
serves all destinations has the advantage of minimum maintenance costs, but also
the drawback of limited flexibility and low efficiency. Adaptive management approaches would favour networks of alternative routes that serve different harbours
J. Murawski and J. Woge Nielsen
Table 11.3 Comparison of fairways from the route atlas (RA), summer-winter (SW), springautumn pattern (SA) and combined designs (CMB), and routes optimized using the SeaPlanner
software (SPO) on east to west crossings of the Gulf of Finland. The fairways to each destination
are ordered from the north to the south. Time is given in hours:minutes, speed in knots and fuel
consumption in metric tons (mt)
Design
Harbour
Westwards going
Eastwards going
Time
Speed
Fuel
Time
Speed
Fuel
SW(north)
Saint
Petersburg
13:56
11.4
9.04
13:22
11.9
8.681
CMB
13:34
11.8
8.81
12:41
12.6
8.239
SPO(north)
13:16
11.9
8.608
12:28
12.6
8.088
RA
13:32
11.9
8.784
12:43
12.6
8.26
SW(south)
13:36
11.8
8.827
12:48
12.5
8.314
SPO(south)
13:33
11.7
8.79
12:36
12.6
8.181
SA
14:00
11.7
9.092
13:00
12.6
8.444
SW
Vyborg
11:50
11.3
7.681
11:24
11.7
7.406
SPO(north)
11:27
11.8
7.438
10:52
12.4
7.054
SPO(south)
11:45
11.8
7.635
11:08
12.7
7.225
RA
11:49
11.9
7.675
11:04
12.6
7.189
CMB
11:52
11.9
7.702
11:07
12.7
7.217
SA
12:14
11.9
7.945
11:21
12.8
7.373
RA
Ust-Luga
14:04
11.9
9.132
13:22
12.6
8.674
SW
12:02
11.8
7.817
11:26
12.5
7.423
SPO(north)
11:57
11.8
7.76
11:09
12.6
7.239
CMB
12:05
11.8
7.848
11:23
12.6
7.395
SPO(south)
12:08
11.8
7.878
11:13
12.7
7.285
SA
12:32
11.8
8.136
11:35
12.6
7.515
RA
Sillamäe
11:46
12.0
7.64
11:13
12.6
7.285
SW
11:14
12.0
7.293
10:35
12.7
6.872
CMB
11:07
12.0
7.215
10:28
12.7
6.801
SPO(north)
10:24
12.0
6.751
09:49
12.8
6.374
SPO(south)
10:40
11.9
6.931
10:01
12.8
6.498
SA
10:42
11.9
6.95
10:02
12.8
6.512
for this harbour. But having only one route to follow and many harbours to serve,
the existing network apparently fails to provide cost effective solutions for other
harbours in the Gulf of Finland such as Vyborg in the northern part of the gulf and
Ust-Luga and Sillamäe at the southern coast. The existing preset fairway system that
serves all destinations has the advantage of minimum maintenance costs, but also
the drawback of limited flexibility and low efficiency. Adaptive management approaches would favour networks of alternative routes that serve different harbours