Dorney Park ride reliability

1. 1Thunder Creek Mountain5d 9h lost · 12 breakdowns · down on 23 of 23 days 34.8%
2. 2White Water Landing5d 8h lost · 13 breakdowns · down on 23 of 23 days 35.2%
3. 3Cedar Creek Cannonball5d 2h lost · 16 breakdowns · down on 23 of 23 days 35.2%
4. 4Thunder Canyon5d 8h lost · 10 breakdowns · down on 23 of 23 days 35.4%
5. 5Zephyr3d 4h lost · 10 breakdowns · down on 23 of 23 days 57.5%
6. 6Snoopy's Rocket Express2d 18h lost · 11 breakdowns · down on 23 of 23 days 60.4%
7. 7Flying Ace2d 16h lost · 12 breakdowns · down on 23 of 23 days 61.2%
8. 8Snoopy's Junction2d 19h lost · 13 breakdowns · down on 23 of 23 days 61.4%
9. 9PEANUTS™ 5002d 17h lost · 11 breakdowns · down on 23 of 23 days 62.7%
10. 10Snoopy's Cloud Climbers2d 15h lost · 10 breakdowns · down on 23 of 23 days 63%
11. 11Road Rally2d 15h lost · 20 breakdowns · down on 23 of 23 days 63.2%
12. 12Linus Launcher2d 16h lost · 10 breakdowns · down on 23 of 23 days 63.3%
13. 13Woodstock's Wagon Wheel2d 15h lost · 10 breakdowns · down on 23 of 23 days 63.3%
14. 14Flying Ace Balloon Race2d 15h lost · 12 breakdowns · down on 23 of 23 days 63.6%
15. 15Sally's Swingset2d 13h lost · 10 breakdowns · down on 23 of 23 days 64.6%
16. 16Camp Bus2d 12h lost · 11 breakdowns · down on 23 of 23 days 65%
17. 17Kite Eating Tree2d 12h lost · 12 breakdowns · down on 23 of 23 days 65.1%
18. 18Woodstock Whirlybirds2d 11h lost · 9 breakdowns · down on 23 of 23 days 65.5%
19. 19Woodstock Express2d 10h lost · 9 breakdowns · down on 23 of 23 days 66.1%
20. 20PEANUTS™ Road Rally2d 9h lost · 8 breakdowns · down on 23 of 23 days 66.2%
21. 21Charlie Brown's Wind-Up2d 9h lost · 8 breakdowns · down on 23 of 23 days 66.3%
22. 22Ferris Wheel2d 14h lost · 7 breakdowns · down on 23 of 23 days 71.1%
23. 23Demon Drop1d 17h lost · 23 breakdowns · down on 23 of 23 days 79.3%
24. 24Wild Mouse1d 6h lost · 21 breakdowns · down on 23 of 23 days 82.4%
25. 25Enterprise1d 4h lost · 8 breakdowns · down on 23 of 23 days 87.2%
26. 26Talon1d 2h lost · 29 breakdowns · down on 23 of 23 days 87.8%
27. 27Sea Dragon19h 14m lost · 11 breakdowns · down on 23 of 23 days 89.4%
28. 28Thunderhawk19h 6m lost · 9 breakdowns · down on 23 of 23 days 90.8%
29. 29Revolution18h 11m lost · 17 breakdowns · down on 23 of 23 days 91.1%
30. 30Dominator Red15h 8m lost · 20 breakdowns · down on 23 of 23 days 91.8%
31. 31Possessed15h 32m lost · 21 breakdowns · down on 23 of 23 days 92.4%
32. 32Dominator14h 2m lost · 11 breakdowns · down on 23 of 23 days 92.7%
33. 33Steel Force14h 39m lost · 14 breakdowns · down on 22 of 23 days 92.9%
34. 34Tilt-a-Whirl13h 5m lost · 10 breakdowns · down on 23 of 23 days 94.1%
35. 35MT Buckets12h 47m lost · 5 breakdowns · down on 23 of 23 days 94.4%
36. 36Kaleidoscope10h 50m lost · 12 breakdowns · down on 23 of 23 days 94.5%
37. 37Iron Menace10h 47m lost · 9 breakdowns · down on 23 of 23 days 94.5%
38. 38Hydra9h 40m lost · 10 breakdowns · down on 23 of 23 days 95.6%
39. 39Musik Express9h 10m lost · 6 breakdowns · down on 23 of 23 days 95.6%
40. 40Dodgem8h 33m lost · 4 breakdowns · down on 23 of 23 days 95.6%
41. 41Antique Carousel7h 49m lost · 7 breakdowns · down on 23 of 23 days 96.5%
42. 42Wave Swinger7h 45m lost · 7 breakdowns · down on 23 of 23 days 96.6%
43. 43Scrambler6h 19m lost · 4 breakdowns · down on 23 of 23 days 97.1%
44. 44Whip6h 8m lost · 5 breakdowns · down on 23 of 23 days 97.4%

Breakdowns cluster at 6pm, with 144 of the 494 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 320 rides simply were not running at opening, which is a late start rather than a fault and is counted separately. The other 13 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.