TransitRadar

Friday, 21 August 2026

Friday, 21 August 2026 was a poor day on the railway: of the 20,970 passenger trains whose arrival was recorded, 85% were within five minutes, and a further 1,032 were cancelled outright.

Friday carries the heaviest long-distance loading of the week, and it is the day on which a late-afternoon problem has the fewest spare paths to recover into.

2,770 trains arrived more than five minutes late and 291 more than half an hour, against 17,909 that ran to time. The average delay across every train whose arrival was recorded was 2.2 minutes.

The reason attached most often to a late train was “This service has been delayed by a late running train being in front of this one” — 557 services carried it. Darwin publishes these as complete sentences written for passengers, so they appear here unedited.

The busiest hour was 07:00, with 1,686 booked departures and an average delay of 1.6 minutes.

The day in numbers

Passenger trains recorded26,060
Cancelled1,0324.0%
Arrival time recorded20,97083.8% of those that ran
…arrived within 5 minutes17,90985.4%
…arrived 5 to 30 minutes late2,77013.2%
…arrived more than 30 minutes late2911.4%
Average delay at destination2.2 min

Every percentage among the bands is of the 20,970 trains whose arrival reached the archive — not of all 26,060, and the bands are exclusive. 4,058 trains ran without an arrival time being recorded, and nothing is claimed about how punctual those were. Delay is judged at the destination, a stricter test than the industry's own measure and not comparable with it.

By operator

38 operators ran passenger services on this date, from ScotRail on 3,003 runs down to TY on 4. Ordered by volume, not performance — any heading re-sorts it.

Operator
ScotRail SR3,0030%2,241 96% 96% 0.4 min
Northern NT2,8291%2,713 87% 86% 1.4 min
Great Western Railway GW2,1573%1,557 84% 80% 2 min
South Western Railway SW1,8382%1,548 89% 87% 1 min
Southeastern SE1,7934%1,696 80% 77% 3.2 min
Southern SN1,7024%1,519 80% 76% 3.1 min
London Overground LO1,6118%1,254 95% 86% 0 min
Greater Anglia LE1,57211%1,283 92% 81% 0.3 min
West Midlands Railway LM1,39813%1,019 80% 68% 3.4 min
Transport for Wales AW1,2534%906 89% 85% 0.4 min
Thameslink TL9215%555 77% 71% 3.2 min
London Underground LT7800%325 97% 97% 0.8 min
Elizabeth line XR6971%687 94% 93% -0.5 min
East Midlands Railway EM6071%485 76% 75% 3.2 min
Merseyrail ME5880%577 95% 95% 0.9 min
Great Northern GN4373%381 84% 81% 2.2 min
c2c CC41911%316 65% 57% 4.6 min
Avanti West Coast VT3745%243 15% 14% 30.3 min
Chiltern Railways CH3509%309 90% 82% 2.4 min
CrossCountry XC3433%271 59% 56% 8.2 min
TransPennine Express TP3333%306 77% 75% 3.3 min
London North Eastern Railway GR3073%175 43% 41% 11.5 min
Tyne and Wear Metro TW1690%146 93% 93% 1.3 min
Heathrow Express HX1520%152 92% 92% 0.8 min
Sheffield Supertram SJ970%65 100% 100% 0.4 min
Gatwick Express GX724%53 62% 59% 5.7 min
Eurostar ES530%49 71% 71% 6.1 min
Island Line IL520%52 100% 100% -0.4 min
Charter/Other ZZ500%8 25% 25% 54 min
Grand Central GC229%19 32% 29% 12.7 min
West Coast Railway Co WR160%10 90% 90% -5.5 min
Hull Trains HT140%14 71% 71% 4.6 min
Lumo LD120%12 67% 67% 6.8 min
Lumo Stirling LF1010%9 56% 50% 13.9 min
Caledonian Sleeper CS1020%7 71% 56% 38.4 min
North Yorkshire Moors Railway NY80%8 88% 88% -13.5 min
LS LS70%0 — — —
TY TY40%0 — — —

“On time” is of each operator's recorded arrivals; “incl. cancelled” counts a cancellation as a failure, which is what the industry's own measure does. Across the whole day they read 85% and 81% — why both are published, what each hides, and how the sort treats a small operator.

Why trains were late

8 different reasons were given for delay on this date, each reproduced in the operator's own words.

This service has been delayed by a late running train being in front of this one

557 services

This service has been delayed by a safety inspection of the track

470 services

This service has been delayed by a speed restriction over defective track

324 services

This service has been delayed by a speed restriction

273 services

This service has been delayed by a fault with the signalling system

226 services

This service has been delayed by urgent repairs to the track

191 services

This service has been delayed by a fault with the signalling system earlier today

181 services

This service has been delayed by an object being caught on the overhead electric wires earlier today

148 services

Why trains were cancelled

A reason reached the archive for 648 of the 1,032 cancellations (62.8%), across 8 distinct reasons. A run cancelled part-way along often carries no reason at all.

This service has been cancelled because of a derailed train

178 services

This service has been cancelled because of a fire on property near the railway

135 services

This service has been cancelled because of a safety inspection of the track

78 services

This service has been cancelled because of a shortage of train drivers

74 services

This service has been cancelled because of a fire on property near the railway yesterday

48 services

This service has been cancelled because of a fault with the signalling system

47 services

This service has been cancelled because of more trains than usual needing repairs at the same time

44 services

This service has been cancelled because of a speed restriction

44 services

The longest delays

The worst of them arrived 3h 51m behind schedule — Edinburgh to Fort William, booked away at 04:50, run by Caledonian Sleeper. The ten longest range from 3h 51m down to 1h 25m, and they belong to 4 operators, Avanti West Coast accounting for 5. What a delay on that scale usually means.

BookedServiceLate by
04:50Edinburgh to Fort William 1Y11 · CS3h 51m
04:28Edinburgh to Aberdeen 1A25 · CS2h 05m
09:56STWTTMD to London Victoria 5Y40 · ZZ1h 49m
14:34Glasgow Central to London Euston 1M15 · VT1h 43m
08:40London Euston to Edinburgh 9S54 · VT1h 37m
12:45London Cannon Street to London Cannon Street 2T85 · SE1h 32m
10:16London Euston to Birmingham New Street 9G14 · VT1h 27m
12:55London Charing Cross to Dartford 2M34 · SE1h 26m
20:02London Euston to Holyhead 1D94 · VT1h 26m
09:53London Euston to Manchester Piccadilly 1H12 · VT1h 25m

Through the day

Booked departures by hour, with the share that arrived within five minutes. Punctuality was weakest at 04:00, when 59% of 162 arrived within five minutes.

00 134
01 45
02 12
03 31
04 162
05 948
06 1,633
07 1,686
08 1,565
09 1,474
10 1,443
11 1,422
12 1,432
13 1,423
14 1,450
15 1,478
16 1,580
17 1,644
18 1,544
19 1,310
20 1,098
21 1,007
22 889
23 650

The filled part of each bar is the share of that hour's booked departures that arrived within five minutes. The quietest was 02:00 with 12.

What ran

Formations were recorded for 26,590 trains on this date, made up of 2,833 individual units and 12,466 separate vehicles. These figures cover the services an allocation was published for, not every train that ran.

25 different classes of train appeared, which is the signature of a full weekday — the long-distance fleets, the regional diesel units and the suburban electrics all working at once.

The most-used class was the 377, allocated to 3,175 of the day's recorded trains from a pool of 215 units.

The average train was 5.6 vehicles long. The longest formation recorded was 22 vehicles.

ClassTrainsUnits used
Class 3773,175215
Class 4651,622103
Class 4501,481117
Class 1581,447134
Class 7201,369114
Class 1501,29186
Class 3451,26366
Class 3871,15685
Class 1651,11661
Class 1561,08791
Class 3851,02165
Class 170996101

Of 26,060 runs, 26,590 had a formation published (102%) — these are allocations rather than observations.

Buses

16,517 buses from 168 operators were seen on this date, across 3,045,264 position reports.

134,348 bus journeys were followed to their destination on this date. 91,635 arrived on time, 7,107 late, and 35,606 — 27% — arrived ahead of schedule.

Early arrivals are normal rather than exceptional. Bus running times carry enough slack to survive traffic, and it is concentrated in the last leg, so a clear run simply finishes sooner than booked.

Averaged across every journey, buses arrived 0.3 minutes ahead of schedule — the early arrivals outweighing the late ones.

Journeys followed to destination134,348
On time91,63568.2%
Early35,60626.5%
Late7,1075.3%
…more than 20 minutes late7770.6%
Average arrival0.3 min early

By operator

OperatorJourneysOn timeEarly
Transport for London TFLO102,71270%27%
Nottingham City Transport NCTR2,01478%18%
Go North East GNEL1,92271%11%
First South Yorkshire FSYO1,85259%33%
First Bristol, Bath & the West FBRI1,52956%28%
First Leeds FLDS1,51253%37%
National Express NATX91833%34%
Bee Network BNSM88876%20%
Arriva Yorkshire WRAY83654%37%
National Express West Midlands TNXB80477%17%
First Potteries FPOT75253%32%
Bee Network BNML65469%20%

Of the operators with enough journeys to compare, Fastrack (operated by Go Ahead) ran closest to time (84%), and National Express furthest from it (33%).

Our figures, not the regulator's — why buses run early, the current league.

Recorded live from the Darwin and TRUST feeds on 21 Aug 2026 itself. How these figures are measured · Sources and licences