Dorney Park ride reliability

1. 1White Water Landing7d 12h lost · 2 breakdowns · down on 22 of 22 days 4.3%
2. 2Thunder Canyon7d 12h lost · 2 breakdowns · down on 22 of 22 days 4.4%
3. 3Thunder Creek Mountain7d 12h lost · 1 breakdown · down on 22 of 22 days 4.5%
4. 4Cedar Creek Cannonball5d 0h lost · 13 breakdowns · down on 22 of 22 days 29.1%
5. 5Zephyr4d 8h lost · 13 breakdowns · down on 22 of 22 days 38%
6. 6Snoopy's Rocket Express4d 1h lost · 12 breakdowns · down on 22 of 22 days 38.8%
7. 7Flying Ace3d 23h lost · 13 breakdowns · down on 22 of 22 days 39.5%
8. 8PEANUTS™ Road Rally3d 22h lost · 10 breakdowns · down on 22 of 22 days 42.7%
9. 9PEANUTS™ 5003d 20h lost · 11 breakdowns · down on 22 of 22 days 43.3%
10. 10Road Rally3d 20h lost · 19 breakdowns · down on 22 of 22 days 43.3%
11. 11Kite Eating Tree3d 20h lost · 15 breakdowns · down on 22 of 22 days 43.4%
12. 12Woodstock Whirlybirds3d 20h lost · 13 breakdowns · down on 22 of 22 days 43.5%
13. 13Camp Bus3d 20h lost · 12 breakdowns · down on 22 of 22 days 43.6%
14. 14Woodstock's Wagon Wheel3d 20h lost · 11 breakdowns · down on 22 of 22 days 43.7%
15. 15Linus Launcher3d 18h lost · 12 breakdowns · down on 22 of 22 days 44.2%
16. 16Woodstock Express3d 18h lost · 11 breakdowns · down on 22 of 22 days 44.2%
17. 17Snoopy's Cloud Climbers3d 18h lost · 11 breakdowns · down on 22 of 22 days 44.2%
18. 18Flying Ace Balloon Race3d 18h lost · 12 breakdowns · down on 22 of 22 days 44.4%
19. 19Snoopy's Junction3d 18h lost · 11 breakdowns · down on 22 of 22 days 44.4%
20. 20Charlie Brown's Wind-Up3d 18h lost · 11 breakdowns · down on 22 of 22 days 44.4%
21. 21Sally's Swingset3d 17h lost · 10 breakdowns · down on 22 of 22 days 44.6%
22. 22Ferris Wheel2d 4h lost · 8 breakdowns · down on 22 of 22 days 74.7%
23. 23Demon Drop1d 6h lost · 23 breakdowns · down on 22 of 22 days 83.8%
24. 24Talon1d 3h lost · 32 breakdowns · down on 22 of 22 days 84.7%
25. 25Dominator Red1d 6h lost · 28 breakdowns · down on 22 of 22 days 84.8%
26. 26Wild Mouse21h 34m lost · 17 breakdowns · down on 22 of 22 days 85%
27. 27Dominator22h 27m lost · 18 breakdowns · down on 22 of 22 days 88.2%
28. 28Enterprise23h 41m lost · 7 breakdowns · down on 22 of 22 days 88.8%
29. 29Sea Dragon15h 3m lost · 10 breakdowns · down on 22 of 22 days 90.2%
30. 30Possessed14h 24m lost · 17 breakdowns · down on 22 of 22 days 90.3%
31. 31Thunderhawk16h 24m lost · 8 breakdowns · down on 22 of 22 days 91.3%
32. 32Hydra15h 5m lost · 19 breakdowns · down on 22 of 22 days 91.9%
33. 33Revolution12h 47m lost · 13 breakdowns · down on 22 of 22 days 92.9%
34. 34Iron Menace11h 1m lost · 17 breakdowns · down on 22 of 22 days 93.8%
35. 35Kaleidoscope10h 20m lost · 12 breakdowns · down on 22 of 22 days 93.8%
36. 36Steel Force10h 47m lost · 14 breakdowns · down on 21 of 22 days 94.4%
37. 37Tilt-a-Whirl7h 55m lost · 6 breakdowns · down on 22 of 22 days 96.1%
38. 38Dodgem5h 54m lost · 4 breakdowns · down on 22 of 22 days 96.4%
39. 39Antique Carousel6h 58m lost · 7 breakdowns · down on 22 of 22 days 96.5%
40. 40Scrambler5h 1m lost · 4 breakdowns · down on 22 of 22 days 97.1%
41. 41Musik Express4h 43m lost · 2 breakdowns · down on 22 of 22 days 97.4%
42. 42Wave Swinger5h 7m lost · 3 breakdowns · down on 22 of 22 days 97.5%
43. 43MT Buckets3h 50m lost · 1 breakdown · down on 22 of 22 days 97.9%
44. 44Whip3h 43m lost · 2 breakdowns · down on 22 of 22 days 98.1%

Breakdowns cluster at 6pm, with 203 of the 475 closures that started before the park's final hour beginning then - so the ride you most want is safest earlier in the day, not saved for last. A further 354 rides simply were not running at opening, which is a late start rather than a fault and is counted separately. The other 22 closures start in the 10pm hour, when the park is shutting - those are rides finishing their day, not failing, so they are left out here.

The worst day in this window was 16 Oct, when 54.9% of the park's ride hours were lost and 44 of 44 rides went down at some point.