ISO 17842-2:2015

INTERNATIONAL ISO
STANDARD 17842-2
First edition
2015-04-01
Safety of amusement rides and
amusement devices —
Part 2:
Operation and use
Sécurité des manèges et des dispositifs de divertissement —
Partie 2: Fonctionnement et utilisation
Reference number
ISO 17842-2:2015(E)
©
ISO 2015

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ISO 17842-2:2015(E)

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ISO 17842-2:2015(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Operation, maintenance and use of amusement rides and amusement devices .5
4.1 Introduction . 5
4.2 Standard documentation . 5
4.3 Duties of the controller . 5
4.3.1 General. 5
4.3.2 Selection and training of staff . 6
4.3.3 Assembly and disassembly . 7
4.3.4 Care of equipment . 9
4.3.5 Trial operations and checks .11
4.3.6 Operation .12
4.3.7 Duties for the supervision of the operation .14
4.3.8 Maintenance (servicing, repair, restoration and modification).14
4.4 Duties of the device operator .16
4.4.1 General requirements .16
4.4.2 Safe operation . . .17
4.5 Duties of the attendant.18
4.6 Inspection .18
4.6.1 Annual in-service inspection .18
4.7 General safety provisions .19
4.7.1 Means of evacuation and escape .19
4.7.2 Fire .19
Annex A (informative) Training, qualification and experience for competent persons .22
Bibliography .23
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ISO 17842-2:2015(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2. www.iso.org/directives
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any
patent rights identified during the development of the document will be in the Introduction and/or on
the ISO list of patent declarations received. www.iso.org/patents
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 254, Safety of amusement rides and amusement
devices.
ISO 17842 consists of the following parts, under the general title Safety of amusement rides and
amusement devices:
— Part 1: Design and manufacture
— Part 2: Operation and use
— Part 3: Requirements for inspection during design, manufacture, operation and use
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INTERNATIONAL STANDARD ISO 17842-2:2015(E)
Safety of amusement rides and amusement devices —
Part 2:
Operation and use
1 Scope
This part of ISO 17842 specifies the minimum requirements necessary to ensure the safe maintenance,
operation, inspection and testing of the following: mobile, temporary or permanently installed
machinery and structures, e.g. roundabouts, swings, boats, Ferris wheels, roller coasters, chutes,
grandstands, membrane or textile structures, booths, stages, side shows, and structures for artistic
aerial displays. The above items, hereafter called devices, are intended to be installed both repeatedly
without degradation or loss of integrity, and temporarily or permanently in fairgrounds and amusement
parks or any other locations. Fixed grandstands, construction site installations, scaffolding, removable
agricultural structures and simple coin operated children’s amusement devices, carrying not more than
three children, are not covered by this document.
Existing national rules on workers’ safety are not concerned by this document.
ISO 17842-3 contains inspection requirements during design, manufacture, operation and use.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 2307, Fibre ropes — Determination of certain physical and mechanical properties
ISO 5817, Welding — Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding
excluded) — Quality levels for imperfections
ISO 9554, Fibre ropes — General specifications
ISO 7001, Graphical symbols — Public information symbols
ISO 7010, Graphical symbols — Safety colours and safety signs — Registered safety signs
ISO 7165, Fire fighting — Portable fire extinguishers — Performance and construction
ISO 13857, Safety of machinery — Safety distances to prevent hazard zones being reached by upper and
lower limbs
ISO/IEC 17020, Conformity assessment — Requirements for the operation of various types of bodies
performing inspection
ISO 17842-1, Safety of amusement rides and amusement devices — Design and manufacture
ISO 17842-3, Safety of amusement rides and amusement devices — Requirements for inspection during
design, manufacture, operation and use
ISO/TS 17929, Biomechanical effects on amusement ride passengers
IEC 60947-3, Low-voltage switchgear and controlgear — Part 3: Switches, disconnectors, switch-
disconnectors and fuse-combination units
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ISO 17842-2:2015(E)

EN 12385, Steel wire ropes — Safety
EEC 2006/7/EC, DIRECTIVE 2006/7/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 15
February 2006 concerning the management of bathing water quality and repealing Directive 76/160/EEC
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 17842-1, ISO 17842-2,
ISO/IEC 17020 and ISO/TS 17929, and the following apply.
NOTE Any symbols connected with the respective terms or units are explained in the clauses concerned.
3.1
amusement device
arrangement of equipment that produces the desired effect of amusement or entertainment when the
guest moves through it or on it primarily by his or her own action, or any other system that is not
covered by the term amusement ride (3.2)
Note 1 to entry: In this document, the word device is used to refer to an amusement device or amusement ride (3.2).
3.2
amusement ride
equipment that is designed to entertain the passengers (3.22) during motion, including the
biomechanical effects
Note 1 to entry: In this document, the word device is used to refer to an amusement device (3.1) or amusement ride.
Note 2 to entry: See ISO/TS 17929 for the definition of biomechanical effect.
3.3
attendant
person appointed to work under the supervision of an operator, to assist in the operation of an device
available for use by the public
3.4
competent person
person who has acquired through training, qualifications or experience, or a combination of these, the
knowledge and skills enabling that person to perform a specified task
3.5
controller
person or organization having overall control of an amusement device
Note 1 to entry: This may be either an individual or corporate body owning an amusement device, or the
concessionaire or lessee who has been granted control of the device by the owner for a specified period.
3.6
designer
engineer
person or body responsible for the design of a device (or modifications thereof), including, but not
limited to establishing and describing the configuration of the amusement ride or device, conducting
appropriate risk assessment(s), establishing strength (including fatigue strength), designing and
specifying electrical/electronic control systems, defining inspection criteria and including the provision
of the necessary documentation
3.7
design review
document detailing the review of all the applicable design documents, to determine the suitability for
use of a device
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3.8
design risk assessment
DRA
document produced by the designer to ensure a safe design within the agreed scope of supply
3.9
device log
book or file containing all the necessary information about the use and history of any device
3.10
fence
structure designed to restrict or prevent movement across a boundary
3.11
gate
section of fencing that may be opened to provide access
3.12
guest
person who interacts with a device
Note 1 to entry: While both are guests, a passenger (3.22) is active and a spectator (3.33) passive.
3.13
inspection
procedures and investigations necessary for the inspection body (3.14) to decide whether the device can
continue to be operated safely, or whether it requires any improvements and/or defects to be remedied
immediately or within a specified time
3.14
inspection body
any organization operating in accordance with ISO/IEC 17020 carrying out approval, examination and
tests of devices
3.15
initial approval
design and calculation review, verification, examinations and tests executed by the inspecting body
before a device is first made available for public use
3.16
latching
means of being held secure against opening except by intentional action of the passenger
(3.22), operator or other means
Note 1 to entry: This can include restraints (e.g. drop bars) held in place by gravity, detents or other means.
3.17
locking
Note 1 to entry: means by which a locked restraint (3.27) is held secure against opening except by intentional
action of the operator or other means not accessible by the passenger (3.22)
3.18
manufacturer
any natural or legal person who is responsible for designing and manufacturing a product with the view
to placing it on the market under his own name
Note 1 to entry: Any commercial operator that either places a product on the market under his own name or
trademark or modifies a product in such a way that compliance with applicable requirements may be affected
should be considered the manufacturer and should assume the obligations of the manufacturer.
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3.19
major modification
safety-related alteration to the hardware or software of a device, including the introduction of a new
safety-related component or the substitution of a safety-related component, which results in a deviation
from the design specification
3.20
operator
person appointed by the controller to be in charge of the operation of a device at all times when it is
intended to be available for the public
3.21
operation and use risk assessment
OURA
document, produced by the controller, that details all of the considered risks inherent during all modes
of device operation at the particular location and the means taken to mitigate them
3.22
passenger
patron
any person using a device
3.23
passenger containment
components (e.g. seating, foot wells, handrails, passenger restraints) designed to prevent passengers
(3.22) from moving outside a predetermined area on a ride either as a result of biomechanical effects,
the ride forces or the behaviour of the passenger
3.24
passenger safety envelope
safety envelope
motion safety envelope
passenger clearance envelope
theoretical or actual physical space that may be encroached upon by any part of a passenger (3.22) of an
amusement ride during the ride cycle
3.25
passenger unit
PU
part or parts of a device in or on which the passengers (3.22) are intended to ride
3.26
platform
horizontal or slightly inclined surface raised above the level of an adjacent area
3.27
restraint
system, device, or characteristic that is intended to inhibit or restrict the body movement and/or maintain
the body position to tolerate accelerations of the patron(s) while on the amusement ride or device
3.28
reach envelope
patron reach envelope
passenger reach envelope
physical space where a passenger (3.22) could reach during a ride cycle while properly positioned,
as defined by the ride analysis, in the amusement ride or device and limited only by the vehicle, seat
geometry, and restraint system
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ISO 17842-2:2015(E)

3.29
repair
restoration of components or assemblies to the requirements set out in the manual
3.30
reasonably foreseeable misuse
use of a machine in a way not intended by the designer, but which can result from readily
predictable human behaviour
[SOURCE: ISO 12100:2010, 3.24]
3.31
safety-related component
component of a device on which the safety of the passengers (3.22) is dependent
3.32
service
replacement or replenishment of components, including fluids which are designated to be replaced or
replenished at specified intervals
3.33
spectator
person in the vicinity of a device, typically watching the operation of the device or waiting to gain access
to the use the device
3.34
trial run
proving run of a device during which no passengers (3.22) are carried
4 Operation, maintenance and use of amusement rides and amusement devices
4.1 Introduction
This part of ISO 17842 is concerned with the installing, assembly and disassembly, operating, dismantling,
handling, maintaining, repairing, modifying and inspecting of devices, and is addressed to controllers,
operators, attendants and inspection bodies.
4.2 Standard documentation
The documents, which shall accompany devices, are
— manuals (see ISO 17842-1),
— device log (see ISO 17842-1), and
— operation and use risk assessment (OURA), incorporating the residual risks resulting from the
design risk assessment (DRA).
4.3 Duties of the controller
4.3.1 General
The controller or nominated delegate(s) shall
— ensure that the required documentation accompanies the device when being bought, sold or
otherwise transferred or supplied,
— select and train operators and attendants,
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ISO 17842-2:2015(E)

— assemble, and disassemble safely,
— ensure safe operation in full compliance with: manual(s), all laws, prescriptions and regulations
issued by local and national authorities,
— service, maintain, repair and modify safely,
— where required, ensure that only devices which have valid operational documentation and are
examined and tested by appropriate inspection bodies, are operated,
— maintain, keep available and update as required the operating manual and device log, as well as
creating necessary reports,
— ensure that where operators do not have a clear view of all loading or unloading points, devise a clear
system of signals for checking with attendants that it is safe to start, ensure every person using the
system is instructed in how to use it and display a copy of the signal code in appropriate positions,
— ensure that emergency procedures are established, well documented and regularly practiced, and
— provide full instructions on the control or communications system.
The ride controller can delegate any part of his duties, but remains responsible.
4.3.2 Selection and training of staff
Obtaining suitable and competent staff involves selection, training, testing of knowledge and
understanding, monitoring, auditing and keeping records. The controller shall select people able to put
the safety of the public first, likely to follow procedures conscientiously and having the maturity and
authority to give confidence to the public.
Adequate training shall be provided to all employees and training records kept. Training shall be
appropriate to the risks and given in a way that those being trained can understand.
The operator and attendants of devices shall demonstrate competency in the operation of devices
according to the manual(s).
No operators or attendants of the device shall be younger than required by national standards or law in
the country of use.
Operators and attendants, depending on their duties, shall be provided with suitable and sufficient
information and training in the working of their devices, covering the following:
— systems of work for safe operation, including speed limits and any other specific safety measures;
— procedures for reporting breakdown, defects or unusual occurrences;
— loading and unloading procedures;
— passenger restrictions as detailed in the manual such as height and weight limits, medical conditions,
disabilities (see guest behaviour in ISO 17842-1);
— control of waiting and viewing areas;
— use and operation of passenger containment and passenger restraint systems including the checking
of restraint closure;
— controlled/emergency stop procedures;
— emergency procedures, including passenger evacuation.
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ISO 17842-2:2015(E)

4.3.3 Assembly and disassembly
4.3.3.1 Siting of Devices
4.3.3.1.1 General
Devices shall be sited and assembled in accordance with manufacturer’s instruction and applicable
national requirements.
4.3.3.1.2 Standard conditions for the siting of devices
The ride controller or his representative shall ensure that a device is only sited on ground which is
suitable for this purpose in accordance with the manual(s). For example ensure that the ground
— can safely bear the load of the device. For existing structures, e.g. buildings or piers, a detailed
inspection and calculation shall be carried out in order to establish permissible loads,
— is sufficiently flat, even and stable for the attraction to be assembled and used on safely, in accordance
with the device log and manual.
The ground shall be checked at regular intervals after assembly, to confirm that there is no deterioration
in its load bearing capacity, especially during adverse weather conditions. Drainage shall be considered.
The controller shall establish the position of underground services or overhead lines which may present
hazards during the assembly or operation of the device, taking advice as necessary from the appropriate
authority. Where these could be a source of danger to persons employed or to members of the public,
all reasonably practicable precautions shall be taken to prevent such danger, either by the provision of
adequate and suitably placed barriers or otherwise.
Care shall be taken to ensure that underground services are not struck when poles or pegs are placed in
the ground or when excavation is undertaken. Service location techniques shall be employed before any
such work is commenced, unless it has been confirmed beforehand that there are no services present.
When positioning devices, controllers shall apply the following principles.
a) The proximity to other fixed or mobile structures or services shall be in accordance with ISO 17842-1.
b) There shall be sufficient clearance between adjacent devices, buildings or other occupied areas to
minimize the risk of fire spread.
c) Consideration shall be given to any possibility of uplift caused by wind.
d) They shall be arranged so that the public have safe access to each device at entrance, and safe egress
at exit points, so that there are no bottle necks which could cause overcrowding in an emergency.
e) Sufficient clearance shall be provided between and above devices on main access routes, so as to
provide access for emergency service vehicles, and provide access to fixed fire hydrants even when
the public may be being evacuated.
f) Where rides cross over or pass through each other, as a minimum the clearance envelopes for each
ride (see ISO 17842-1 and/or ISO/TS 17929) shall apply. The controllers shall ensure that safety
envelopes for both passengers and spectators are not compromised.
g) The OURA will need to consider whether protection is required to prevent falling objects hitting
passengers or spectators.
NOTE Local regulations can exist that define the minimum distance between amusement rides and devices
and other structures, objects, services, etc.
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ISO 17842-2:2015(E)

4.3.3.2 Transportation, assembly and disassembly
4.3.3.2.1 Supervision and personnel
When devices are transported, assembled or disassembled on site they shall be under the direct
supervision of the controller and/or competent delegate(s).
4.3.3.3 Ground packing, stability and anchors
All necessary measures shall be taken during assembly to ensure that the device will be stable when in use.
No device shall be assembled on sloping or uneven ground, unless suitable packing has been incorporated
which allows the device to be used safely.
The device shall be level where necessary and have its load adequately distributed and firmly supported.
Its stability shall be checked frequently.
The number of packing pieces used shall be kept to a minimum. The height of the packing material shall
be kept to a minimum and the packing itself shall be stable.
All packing materials incorporated shall be sound and suitable for the purpose, chosen and located in
accordance with the manual(s), so as to prevent slipping and sinking, or dislodgement.
Packing shall be placed directly beneath the load points of the device. If this cannot be achieved a
suitable supporting structure shall be formed which effectively transmits the load of the device safely
through the packing to the ground. Dynamic loads can lead to the loosening of packing and anchorage;
consequently, repeated checks of the packing and anchors are essential.
If an attraction is equipped with props to support the structure, these props shall be used in accordance
with the manufacturer’s instructions.
Hydraulic jacks shall not be used to support a ride during operation, unless they are designed and
approved for the purpose.
4.3.3.3.1 Public safety
Members of the public shall not be admitted into areas where a device is being assembled or disassembled.
The controller and/or competent persons shall, where necessary, provide means to prevent members of
the public entering work areas e.g. with fences and/or warnings.
4.3.3.3.2 Working method
A safe system of work, which as a minimum takes into account the manufacturer’s manual(s) shall
be followed during these operations. Controllers shall make themselves familiar with, and follow the
official requirements of local and national authorities.
Devices shall be moved so as to minimize the risk of damage to safety-related components and all loads
shall be properly secured during transit.
Where there is any temporary state of instability or overstress in the device during assembly or
dismantling, the precautions specified by the designer, manufacturer, and/or supplier, shall be followed.
This may require, e.g. the use of temporary guys, stays, supports and fixings to prevent danger through
collapse of any part of the device.
Temporary provisions for access and working during assembly and disassembly operations shall be safe
including sufficient and suitable lighting to allow work to be conducted in a safe and proper manner.
Unauthorised access shall be prevented through openings in platforms and through any gaps within the
device, which are only intended for access when the device is not in motion or use. Such openings or gaps
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shall be provided with covers, be securely fixed in position or equipped with barriers and access doors,
which are securely fastened.
Before reassembly, all components as specified in the manual(s) shall be cleaned, carefully examined
for signs of wear, deformation or other damage, confirming fitness for purpose or otherwise repaired or
replaced. They shall be properly lubricated in accordance with the manual(s). Replacements and repairs
of safety related components shall be noted in the device log.
Fastening and securing components shall be used in accordance with manufacturer’s instructions and
correctly adjusted, or replaced if necessary.
Upon completion of assembly, all components that are important to the safety of the device, shall be
checked to ensure that they have been properly installed in acco
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