ISO 17842-1:2023

INTERNATIONAL ISO
STANDARD 17842-1
Second edition
2023-09
Safety of amusement rides and
amusement devices —
Part 1:
Design and manufacture
Sécurité des manèges et des dispositifs de divertissement —
Partie 1: Conception et fabrication
Reference number
© ISO 2023
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Published in Switzerland
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Contents Page
Foreword . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 4
4 Requirements for design analysis and examination . 9
4.1 Design documents . 9
4.1.1 General . 9
4.1.2 Design risk assessment. 9
4.1.3 Description of design and operation of an amusement device. 9
4.1.4 Design and manufacturing drawings . 9
4.1.5 Principles of analysis . 10
4.2 Selection of materials . 11
4.2.1 General . 11
4.2.2 Recommended steels . 11
4.2.3 Aluminium alloys . 11
4.2.4 Timber . 11
4.2.5 Plastic composites .12
4.2.6 Concrete .12
4.2.7 Fasteners for structural components .12
4.2.8 Standards relating to ropes, chains, safety devices, connectors and adapters .12
4.3 Design loads . 13
4.3.1 General .13
4.3.2 Permanent actions .13
4.3.3 Variable actions . 14
4.3.4 Seismic forces . 18
4.3.5 Applicable coefficients . 18
4.3.6 Load combinations . 19
4.3.7 Fatigue combinations . 20
4.4 Structural analysis — Principles . 20
4.4.1 General .20
4.4.2 Analysis principles for various types of devices . . 21
4.4.3 Other railways with track-bound vehicles . 26
4.4.4 Conventional railways .26
4.4.5 Suspended railways (or coasters) . 26
4.5 Verification of stability . . 27
4.5.1 General . 27
4.5.2 Overturning . 27
4.5.3 Sliding. 27
4.5.4 Lifting .28
4.6 Ground anchorages .29
4.6.1 General .29
4.6.2 Design load bearing capacity of weight anchors .29
4.6.3 Design load bearing capacity of rod anchors .29
4.6.4 Testing of anchors (numbering) . 31
4.6.5 Calculation of loads on anchors . . 31
4.6.6 Further requirements . 32
4.6.7 Ground support for packing . 32
4.7 Verification of strength .33
4.7.1 General . 33
4.7.2 Predominantly static stress .34
4.7.3 Fluctuating stress .34
4.7.4 Bolts .36
4.7.5 Ropes, chains, safety devices, connectors and adapters .38
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4.8 Structural design and construction.40
4.8.1 Arrangement, accessibility .40
4.8.2 Locking and safety devices for fasteners .40
4.8.3 Joints intended for regular dismantling . 41
4.8.4 Designing of components subject to fluctuating loads . 41
4.8.5 Supports . 41
4.8.6 Central masts . 41
4.8.7 Prevention of corrosion and rot . 41
5 Requirements for design and manufacture of rides and structures .42
5.1 Risk reduction by prevailing design and safety measures . 42
5.1.1 General . 42
5.1.2 Risk assessment . 42
5.1.3 Risk reduction for platforms, ramps, floors, stairs and walkways . 43
5.1.4 Risk reduction using barriers, fencing and guarding . 47
5.1.5 Guarding of machinery parts . 51
5.1.6 Risk reduction in the case of access and egress . 51
5.1.7 Risk reduction for passenger units . 53
5.1.8 Requirements for special provisions .64
5.2 Supplementary safety requirements for various types of amusement devices .65
5.2.1 Amusement rides with horizontal and/or vertical axis .65
5.2.2 Amusement rides with horizontal axis . 67
5.2.3 Rail-guided channel or track-bound devices .68
5.2.4 Dodgem/bumper cars . . 71
5.2.5 Speedways/go-karts .74
5.2.6 Mini-motorbikes for children . 75
5.2.7 Boat rides . 76
5.2.8 Flume rides .
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