Port of Southampton — Period 1 2026-27 (29 March – 25 April) report
Port of Southampton received 197 monitored inbound services in Period 1 2026-27 — 73% arrived within 15 minutes of schedule across 195 completed arrivals, against a national freight benchmark of 89%. The drop from 85% in Period 13 2025-26 is sharp and sits outside the overlap of the two Wilson intervals; this is a notably weaker period for Southampton arrivals reliability, not sampling variation. Cancellations fell to 1% from 14% in the preceding period.
- Edition
- v1.0 (industry review edition)
- Last updated
- 25 April 2026
- Next update
- Period 2 2026-27 — final on 24 May 2026
Headline facts and figures
Services monitored
197
7 a day across the five Southampton terminal TIPLOCs (SOTD107, SOTDED, SOTDWFH, SOTDWGB, SOTOMCT); Period 1 2026-27 (29 Mar – 25 Apr 2026); NROD-derived arrivals data; baseline 331 services in Period 13 2025-26; queried gauge_intelligence_v2 at 2026-05-28
Within 15 minutes
73%
195 completed services arriving within 15 minutes of schedule (Wilson 90% interval 67%–78%); baseline 85% [81%–88%] over 284 completed services in Period 13 2025-26 — intervals do not overlap; national freight benchmark 89% over 14,267 completed services in Period 1 2026-27; queried gauge_intelligence_v2 at 2026-05-28
Cancellation rate
1%
2 cancellations across 197 scheduled paths; down from 14% (47 of 331) in Period 13 2025-26 — a 13 percentage-point reduction on the period; queried gauge_intelligence_v2 at 2026-05-28
Busiest operator
Freightliner Intermodal
124 of 195 completed arrivals (64%); aggregated by operator from TRUST toc_id; Period 1 2026-27; down from 70% share in Period 13 2025-26; queried gauge_intelligence_v2 at 2026-05-28
Context
ORR publishes aggregates only; this page publishes destination-attributed port-level data. Material to yard planning, terminal allocation, and port-side performance reviews.
What you can do with it
- Track arrivals reliability at a port, attributed by destination TIPLOC.
- Compare operator-by-operator reliability on services inbound to a single port.
- Cite the methodology in port operations and corridor reviews.
Who can use it
Port operations leaders · Terminal allocators · Rail journalists
Across Period 1 2026-27, roughly 2 inbound trains a day arrived at Port of Southampton more than 15 minutes late, about 1 in 4 of 192 completed arrivals over the 28-day period, 47 late arrivals in total. Within-15 reliability fell to 73% from 85% in Period 13 2025-26 — the Wilson intervals do not overlap, and this represents a notably weaker period for Southampton arrivals, not sampling noise. Monitored services fell from 331 to 192, consistent with the post-Easter freight calendar. Figures aggregate every monitored journey arriving at the five Southampton terminal TIPLOCs inbound along the Southampton Corridor, drawn from Network Rail's NROD/TRUST feed. Cancellations are reported separately below.
Operators at Southampton-inbound
Freightliner Intermodal ran the most southampton-inbound services in Period 1 2026-27 (121 of 192 completed arrivals). The full per-operator reliability comparison is deferred while the v1.0 industry review edition corrections inbox remains open.
Publishing a per-operator on-time comparison for the busiest freight operators at a single destination before the launch-cohort corrections cycle closes would treat provisional attribution as settled. The table returns at v2.0 general availability. The league-table methodology documents the comparison framework; the release cadence page sets out the four exit criteria for v2.0.
Source: Gauge Intelligence NROD-derived journey data, Period 1 2026-27. Single-destination headline figures (completed arrivals, aggregate within-15-minute rate, cancellations) continue to appear in the panels above; the per-operator breakdown is the panel deferred here.
Outbound destinations — services leaving Port of Southampton
Trafford Park took 37 of 176 outbound services (21%) in Period 1 2026-27 — the largest outbound destination from Port of Southampton, arriving within 15 minutes on 89% of trips.
| Inland terminal | Outbound services | Share | Within 15 minutes |
|---|---|---|---|
| Trafford Park | 37 | 21% | 89% (78–95%) |
| Leeds Stourton | 26 | 15% | 85% (70–93%) |
| Lawley Street | 25 | 14% | 92% (79–97%) |
| Hams Hall | 14 | 8% | 86% (65–95%) |
| Coatbridge | 10 | 6% | 70% (44–87%) |
| Doncaster iPort | 9 | 5% | 100% (77–100%) |
| Wentloog | 9 | 5% | 78% (50–92%) |
| Doncaster Europort | 9 | 5% | 22% (8–50%) |
| Garston | 8 | 5% | 75% (46–91%) |
| Peterborough | 1 | 1% | — |
Source: Gauge Intelligence NROD-derived journey data, Period 1 2026-27. Total outbound services count every journey originating at any Port of Southampton terminal TIPLOC, including services to destinations not yet named in the inland-terminal registry; rows are restricted to registered inland-terminal destinations, so the share column shows each terminal’s slice of total outbound traffic and the row counts will not sum to the total. Destinations with a published archive page link to that page; destinations named in the registry but not yet published render as plain text. The bracketed range on each within-15-minutes figure is the 90% confidence range given the sample size; terminals with fewer than 5 services in the period show a dash. Cancellations are excluded. Lens: supply-chain (port-origin destination-attributed) — see league-table methodology.
What the 15-minute threshold hides
Half of Period 1 2026-27 services arrived within +2 min of timetable. The long tail the A2F binary misses: 5% of services ran +56 min or more late, and 1% arrived over +105 min late. The 15-minute A2F threshold sits at the 73th percentile — 27% of services exceeded it.
Median arrival delay is 2 minutes later than Period 13 2025-26 (median was 0 min then, 2 min now).
| Percentile | Arrival delay |
|---|---|
| 50th percentile (median) — A2F threshold sits at the 73th percentile | +2 min |
| 75th percentile | +17 min |
| 85th percentile | +31 min |
| 90th percentile | +46 min |
| 95th percentile | +56 min |
| 99th percentile | +105 min |
192 services with confirmed terminal arrival in Period 1 2026-27. A2F is binary at 15 minutes — this distribution surfaces what the headline figure does not show. National 99th percentile across all freight operators: 100 min.
Baseline (Period 13 2025-26): median +0 min, p99 +128 min. Period-on-period median shift +2 min.
ORR's Freight rail usage and performance release publishes by Network Rail region and route, not by operator. This page publishes by operator and corridor.
Daily on-time arrivals across Period 1 2026-27
Daily on-time arrivals are down 10.5 percentage points on Period 13 2025-26 (86% then, 76% now).
Range 0%–100% across 28 days. Weekend mean 58% vs weekday 78% (-19.9 percentage points). Mean 76%. (23 of 28 days had recorded services.)
Period 1 2026-27 daily A2F averaged 92% across 23 observations. One or more observations fell outside the expected range (8 day(s) beyond the expected range; 3 run(s) of two-of-three days off-mean), indicating an unusual event rather than ordinary noise.
Mean punctuality in Period 13 2025-26 was 86%. The current period is down 10.5 percentage points on Period 13 2025-26.
Source: Gauge Intelligence NROD-derived journey data, Period 1 2026-27. A service is counted on time when terminal arrival falls within 15 minutes of schedule. Days with no scheduled services (typically Sundays) render as gaps — a missing bar means no measurement, not a value at zero. Red bars flag days that triggered a statistical signal — see anomaly-detection methodology.
ORR's Freight rail usage and performance release publishes by Network Rail region and route, not by operator. This page publishes by operator and corridor.
Cancellation rate
In Period 1 2026-27, 2% of scheduled services were cancelled (4 of 197) — within the national mean of 7%; FOC traction, crew, and terminal decisions accounted for the largest share.
Cancellations are down 12.20 percentage points on Period 13 2025-26 (14% then, 2% now). The largest shifts in the responsible-party split are reported in the table below.
| Scheduled or activated paths | 197 |
| Cancelled (post-activation + pre-activation) | 4 |
| Cancellation rate | 2% 1%–4% |
| National cancellation rate (all freight) | 7% |
Attribution
| Responsible party | Cancellations | Share of cancelled |
|---|---|---|
| Network Rail infrastructure and possessions | 0 | 0% |
| FOC traction, crew, and terminal decisions | 4 | 100% |
| Third party | 0 | 0% |
| Unattributed | 0 | 0% |
Cancellation rate in Period 13 2025-26 was 14% across 331 scheduled paths. The current period is down 12.20 percentage points on Period 13 2025-26.
Source: NROD/TRUST activation feed and BPLAN scheduled paths, Period 1 2026-27. Cancellation rate = (post-activation + pre-activation cancellations) ÷ scheduled or activated paths. Pre-activation cancellations are TRUST CANCEL messages on schedules that never activated; post-activation cancellations have an activation and a CANCEL event. The bracketed range beside the headline rate is the 90% confidence range on the cancellation proportion given the sample size. Cause attribution uses the responsible-party mapping of the recorded cancellation reason code; see delay-attribution methodology.
What this page does not measure
Pre-activation cancellations fall outside the dataset: TRUST requires an activation event before it records a journey, so services cancelled before activation produce no TRUST record. VSTPs are excluded from the path-utilisation denominator because no Working Timetable row exists against which to measure them. Journeys without a confirmed terminal arrival are excluded from the delay distribution. The 15-minute A2F threshold is a regulatory artefact, not a natural cut-off — the "What the 15-minute threshold hides" panel surfaces the distribution behind that line.
Commercial licence
Four derivations are released to commercial-licence subscribers rather than the public archive. Each one reconciles TRUST source-data against Network Rail's Historic Delay Attribution record independently, not republished from public statistics.
- Schedule 8 net position
- Why late — delay attribution
- Schedule 4 possession exposure
- Path utilisation — corridor breakdown
Available under commercial licence. Contact [email protected] for subscription terms.
Methodology & sources
All figures derive from Network Rail's NROD TRUST feed, processed via the Gauge Intelligence ingest pipeline. Period definitions, A2F (Arrival to Fifteen), the Wilson 90% interval, daily anomaly rules, cross-view reconciliation, and delay attribution are documented at:
Data window — period boundaries and the data-as-of cutoff
League tables — cross-view reconciliation across the four analytical views
Anomaly detection — daily A2F SPC rules
Delay attribution — DAPR cause-code breakdown
Forecasting — prediction intervals and possession-exposure estimates
Revisions
No revisions to date.
A revision restates a published figure because the upstream data changed, typically a Network Rail delay-attribution refresh. The minor tier is corrected in the next release; cells affected carry an (r) flag. The intermediate tier triggers immediate amendment with an (r) flag. The wholesale tier is flagged at the top of the page and notified directly to operators and rail journalists subscribed to revision alerts.
Corrections
No corrections to date.
A correction fixes an error in the published output: an arithmetic slip, a typo, a mis-rendered chart. Revisions are different; they restate a figure because the upstream data changed. The distinction matters because corrections never silently rewrite a published number.