← Great Western Railway Historical
Great Western Railway

Outer Thames Valley - London

Historical
·
Daily Monthly
Average on time
76.3%
Over this period
Best month
87.2%
Worst month
65.5%
Data points
31
Months tracked
Monthly PPM
Percentage of trains on time at final destination
On time
Late
V. late/cancelled
Data
Month
Breakdown
On time
Late
V. late
2026-08
70.9%
17.8%
11.3%
2026-07
70.8%
20.9%
8.3%
2026-06
71.4%
17.9%
10.7%
2026-05
76.9%
15.3%
7.8%
2026-04
79.7%
12.9%
7.4%
2026-03
82.5%
14%
3.4%
2026-02
79.4%
15.5%
5%
2026-01
80.2%
12.2%
7.6%
2025-12
75.7%
17.1%
7.2%
2025-11
70.7%
22.3%
7%
2025-10
73%
20.8%
6.2%
2025-09
74%
20.6%
5.4%
2025-08
76.4%
17.1%
6.5%
2025-07
76.4%
16.3%
7.3%
2025-06
79.2%
14.3%
6.5%
2025-05
80.8%
12.3%
6.9%
2025-04
77%
16.4%
6.6%
2025-03
74.7%
17.5%
7.9%
2025-02
76.7%
17.2%
6.1%
2025-01
77.2%
18.4%
4.3%
2024-12
76.2%
19.6%
4.2%
2024-11
65.5%
23.1%
11.4%
2024-10
74.8%
21.1%
4.1%
2024-09
77.9%
18.6%
3.5%
2024-08
77.8%
15.9%
6.3%
2024-07
74.6%
18.2%
7.2%
2024-06
76.1%
16.1%
7.8%
2024-05
77.2%
15.9%
6.9%
2024-04
87.2%
11.5%
1.4%
2024-03
77.4%
18%
4.6%
2024-02
77.8%
15.3%
6.9%