Fleet Intelligence
Fleet Deployment History
The trend behind the latest Fleet Deployment read. Each day the platform classifies the live AIS universe into slow-steaming, idle / anchored and load condition, then upserts one row per segment — so the daily snapshots accumulate into a genuine deployment time series. Falling operating speed and rising idle tonnage withdraw effective supply and tend to lead freight rates; the load-condition (ballast) line is shown but flagged experimental.
—awaiting data
Loading deployment history…
Method & caveats
- Source. Every series is one segment’s daily rows from
fleet_supply_snapshot, the table the daily AIS-deployment cron upserts (one row per snapshot date and segment). The history therefore accumulates forward from the day the cron started; it is not back-filled, so early windows may be short. - Speed index (robust). Mean operating speed over ground for the steaming fleet divided by a vetted per-segment design speed. Read straight from AIS speed, so it is independent of the registered-draught problem. A falling index = more slow-steaming = effective supply withdrawn.
- Idle / anchored share (robust). The deadweight share of the segment at rest (anchored, moored or stopped offshore), from AIS speed and navigational status. Rising = more tonnage parked = supply withdrawn.
- Ballast share (experimental). Live AIS draught ÷ registered design draught, below a per-segment cutoff = ballast. The registered design-draught field is mixed and frequently understated, so the absolute level is biased low. Only the direction is meaningful; suppressed where the dual-draught sample is too thin.
- Segments are gas, tanker, container, bulker and other. This is the trend companion to the latest-snapshot Fleet Deployment read.