Employers have responsibility for the health, safety and welfare at work of all of their employees. It is the employer’s duty to assess risks to lone workers and take steps to avoid or control risks where necessary.

Please refer to the UK HSE guidance paper - Working Alone in Safety: Controlling the risks of solitary work: http://www.hse.gov.uk/pubns/indg73.pdf

All MEWPs (except those designed specifically for indoor use) are designed to operate in wind speeds up to a maximum which should be marked on the machine. Operation in wind speeds above this maximum may cause instability.

Under BS EN280:2001+A2:2009 (Mobile elevating work platforms – Design calculations – Stability criteria – Construction – Safety – Examinations and tests) the maximum design wind speed in which a MEWP can work is 12.5 m/s (28 mph). Wind forces are assumed to act horizontally at the centre of area of the parts of the MEWP and persons and equipment on the work platform, and shall be taken to be dynamic forces. This does not apply to MEWPs intended for indoor use only.

Wind speed can be measured using an anemometer.

It is very important to realise that wind speed increases with height and may be 50% greater at a height of 20 metres above ground level.

Care must be taken when handling building cladding, sheet materials, panels and other such materials which can act as "sails" and seriously affect the stability of a MEWP, especially in gusty wind conditions. For the same reason, signboards and the like must not be applied even temporarily to the platform.

You should be aware of the shielding and funnelling effects of high buildings which may cause high wind speeds on days when the wind speed in open areas is low.

Other sources of local high wind speed to consider are aircraft slipstreams at airports and high-sided vehicles on motorways.

IPAF provides the following quick reference guides for suppliers and users.

Issues covered include:
• Machine weights and permissible loads
• Taxation and regulations affecting vehicle mounted MEWPs used in the highway
• Schedule 3, Engineering Plant
• Extracts from Statutory Instrument 2003 No. 1998, The Road Vehicles (Authorisation of Special Types) (General) Order 2003 s49-(1) - Vehicles fitted with a moveable platform.

For the UK see this information sheet from the UK Government

Some MEWPs are purchased with the anemometer at the point of order as anemometers are not usually fitted as standard by the manufacturer. In addition, an anemometer can be expensive, can be damaged, and requires regular calibration.

The use of netting will be a decision based upon a site, job and machine specific risk assessment.

The attaching of netting or other materials to the handrails of a MEWP to prevent tools and materials falling from height will increase the wind resistance of the raised platform. Thus the manufacturer's recommended maximum wind speed will have to be downrated to compensate for any increased resistance of the platform when raised.

The amount it will be reduced will depend on the material fitted. Any reduction in manufacturer's recommended wind speed rating will have to be made known to potential operators of the MEWP. The weight of the material fastened to the handrails will have to be taken into account when considering the safe working load limitations of the MEWP.

The correct positioning of the platform at height in relationship to the task to be performed will be influential in preventing the possibility of tools and materials falling from the platform.

The tethering of tools and materials should be also considered as a possible option to prevent objects falling from the raised platform.

Where netting is fitted to the handrails, it may increase the possible trip hazard to occupants of the platform and also increase the risk of “snagging” from internal or external objects.

No – the armour would prevent the cable from collecting in the drum provided by the manufacturer and could cause additional hazards.

No, unless a rigorous risk assessment carried out as part of planning the job indicates that this is the safest and most effective means of accessing a particular location, taking into account the availability on site of other more suitable access equipment and the practicability of providing the same within the required timescales for the task to be carried out. This will need to be taken into account during the installation process.

The employer should ensure that all Operators using the equipment are trained to operate the MCWP, with full knowledge of the controls of the equipment, safety systems and emergency procedures, risk assessment guidance and they are able to carry out pre-use/daily inspections and perform the emergency descent. The employer should also ensure that all Operators receive adequate machine-specific familiarization, which should be conducted by a competent Demonstrator with the correct certifications, to ensure operators understand the specific machine controls and safety systems.

Demonstrators are persons, with full knowledge on the operating commands of the equipment, they are able to perform the emergency descent, carry out pre-use/daily and weekly inspections and ensuring that these take place.

In addition, they are trained in the demonstration of MCWP to others in a documented scheme, to ensure Operators understand the specific machine controls and safety systems.

The responsibility for determining the training needs of persons in respect of safety, and for making the necessary arrangements for training, rests with the individual employer. In the case of self-employed persons, the responsibility rests with themselves.

IPAF training programs include MCWP Operator and MCWP Demonstrator, and its successful completion at an IPAF-approved training center leads to a PAL Card, the highest international standard of quality training.

It is not normally necessary for personnel working from a vertical lift to wear fall protection equipment, other than in exceptional circumstances. 

During installation, alteration and dismantling

The work platform of an MCWP is provided with guard-rails and toe boards to protect the occupants from falling. Consequently the use of harnesses is not required during use of MCWPs unless any part of the guard-rail system has been removed by a competent person (e.g. to enhance access to the façade of a building), in which case a risk assessment should be carried out to ascertain the need for, and specification of, fall arrest/work restraint equipment. The risk of falling during installation, alteration and dismantling should be addressed in the installation, alteration and dismantling method statement.

In the event of a risk assessment requiring an anchor point for a harness, the manufacturer should be consulted.

Before attaching fall protection equipment to the work platform, the user organisation‑appointed person should ascertain both the location and suitability of anchor points.

All MCWPs used out-of-doors or otherwise exposed to wind whilst in service shall be regarded as being affected by a minimum wind pressure in accordance with:

Minimum design wind data, in service
Freestanding or MCWP during erection/dismantling: 12,7m/s (Wind velocity), 100N/m2 (Wind pressure)
Tied MCWP: 15,5m/s (Wind velocity), 150N/m2 (Wind pressure)

Wind forces are assumed to act horizontally at the centre of the wind area of the exposed structural parts of the MCWP.

The much-coveted CAP (Competent Assessed Person) Card is proof of passing the CAP assessment and the engineer's ability to plan, manage or carry out thorough examinations of powered access equipment. CAP Cards are valid for five years.

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