| Figure 1.0 |
An overview of a suggested
reporting and monitoring procedure |
| Figure 3.0 |
Schematic diagram of key
measures from the logbooks |
| Figure 5.0 |
Mean percent of work assignment
time spent on pilotage duties, by shipping route |
| Figure 5.1 |
Frequency distribution -
duration of breaks between assignments, by shipping route |
| Figure 5.2 |
Frequency distribution
- starting times of work assignments, by shipping route |
| Figure 5.3 |
Frequency distribution
- starting times of breaks between assignments, by shipping route |
| Figure 6.0 |
Mean total duration and
number of bridge periods per assignment, by shipping route |
| Figure 6.1 |
Mean percent of pilotage
time spent on the bridge, by shipping route |
| Figure 6.2 |
Mean percent of bridge
time at night and during critical hours (2300-0600), by shipping route |
| Figure 6.3 |
Mean percent of bridge
periods associated with calm, medium and heavy sea conditions, by shipping
route |
| Figure 7.0 |
Mean total time in bed
and total sleep time per 24 hours at sea, by shipping route |
| Figure 7.1 |
Mean duration of each sleep
period and number of sleep periods per 24 hours at sea, by shipping route |
| Figure 7.2 |
Mean percent of sleep periods
inside 2200-0800 at sea, by shipping route |
| Figure 7.3 |
Frequency distribution
- starting times of sleep periods at sea, by shipping route |
| Figure 7.4 |
Sleep quality ratings at
sea, by shipping route |
| Figure 7.5 |
Mean percent of sleep periods
with calm, medium or heavy sea conditions, by shipping route |
| Figure 8.0 |
Mean total time in bed
and total sleep time per 24 hours ashore, by shipping route |
| Figure 8.1 |
Mean duration of each sleep
period and number of sleep periods per 24 hours ashore, by shipping route |
| Figure 8.2 |
Mean percent of sleep inside
2200-0800 ashore, by shipping route |
| Figure 8.3 |
Frequency distribution
- starting times of sleep ashore, by shipping route |
| Figure 8.4 |
Sleep quality ratings ashore,
by shipping route |
| Figure 9.0 |
Fluctuations in alertness
during bridgework, by shipping route |
| Figure 9.1 |
Mean percent of bridge
periods with alertness ratings < 3, by shipping route |
| Figure 9.2 |
Mean number of fatigue
symptoms experienced during bridge periods, by shipping route |
| Figure 9.3 |
Mean percent of bridge
periods associated with one or more symptoms of fatigue, by shipping
route |
