What is considered working at Heights?

General provisions for managing the risk of falls

The Work Health and Safety Regulation 2011 contains a number of provisions relating to the management of the risk of falls that apply to construction work.

The Regulation requires that any risk of a fall from one level to another that is likely to cause injury must be managed

In the first instance, duty holders or a person in control of a business or undertaking (PCBU) are required to carry out work on the ground or on a solid construction. Where this is not possible or not reasonably practicable, PCBUs must provide adequate protection that minimises the risk of a fall.

In identifying appropriate controls PCBUs must work through the hierarchy of control outlined in s.79(3) of the Regulation, using higher order controls (e.g. edge protection) wherever it is reasonably practicable to do so.

These provisions aim to ensure that each hazard that may result in a fall that causes death or injury is identified, assessed, and that control measures are implemented to prevent or minimise the exposure to risk. This is an effective continuation of the requirements under the Workplace Health and Safety Regulation 2008, section 317(3), which applied to construction work at less than 3m, for housing construction, and less than 2m, in all other construction work.

So in effect any work carried out not on the ground is now considered working at height and risk assesments must be undertaken.

For more information please follow this link- http://www.deir.qld.gov.au/workplace/publications/safe/construction/may12/working-at-heights/index.htm

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Fatigue In Construction Industry a Safety Concern

Reference group examining fatigue in the construction industry

Research showed that fatigue was associated with a significant increase in near misses at work as well as an increase in work-life conflict. Other key findings included:

• construction workers in all jobs reported fatigue to be highest between 2pm and 4pm
• workers associated November, December and January with higher levels of fatigue
• older workers reported higher levels of fatigue
• the longer the work hours, the higher the level of fatigue
• the longer the commuting hours per day, the higher the level of fatigue.

Factors to consider when managing fatigue

Roster design

When determining if roster design is contributing to fatigue, consider the following:

• Length of shifts - depends on physical and mental load of the work;
• Distribution of leisure time - allow for adequate rest and recovery;
• Regularity of shift system - allows workers to prepare for work;
• Length of shifts worked - this can contribute to fatigue;
• Previous hours and days worked - the effects of fatigue are cumulative, workers may have sleep debt due to the length of previous shifts;
• Type of work being performed - pay particular attention to the level of physical and/or mental effort required; and
• Time of the day when the work is being performed - remember that disrupting the body's circadian rhythms can cause fatigue and affect performance.

The key to managing fatigue successfully is ensuring that workers are given sufficient time between shifts. Adults require approximately seven to eight continuous hours of daily sleep. One way of doing this would be giving workers two successive full days off within a seven day period, so workers can catch up on their night sleep.

Commuting

Excessive hours spent travelling to and from work can extend the effective length of a shift, reduce the time available for sleep and recovery between shifts, and may have significant effects on fatigue levels. When combined with work-related fatigue, driving to and from work can be hazardous.

Shift rotation

If the starting times of shifts vary, the cycle should begin with an early start and move progressively later. Where a rotating three shift system is in operation the preferred rotation is day, afternoon, and night. This will allow workers the maximum opportunity for rest between shifts.

Sleep inertia

Sleep inertia can occur if a person is woken after sleeping for more than 40 minutes. They may be slow to respond, may feel drowsy and disoriented. It may it may take up to 30 minutes before complex tasks can be performed efficiently.
Sleep inertia has implications for safety when workers are on-call for emergencies. Suggested measures to control sleep inertia and the subsequent impairment in work performance include:

• Minimising naps taken at work that exceed 40 minutes; and
• Planning for recovery times of up to 30 minutes for workers who may be subject to sleep inertia, before they are to perform hazardous tasks.

Breaks

Time spent away from the work environment allows workers to recover from fatigue and improve performance, vigilance, safety and efficiency. For this reason breaks should be taken during work shifts, and should not be traded for an early finish time.
Consider the following when deciding on the length and frequency of breaks within a shift:

• Type of work being performed ¿ the greater the physical and/or mental effort required, the longer the total break time required per shift; and
• Length of shifts worked¿ the longer the shift the longer the total break time required per shift.

Occupational exposure levels

Extended working hours increase the risk of exposure to hazards such as noise, heat and chemicals and should be carefully monitored. National and international exposure standards are usually based on five 8 hour days per week. Workplaces where extended hours are worked will need to monitor exposure levels.
It is recommended that expert advice is sought in adjusting exposure levels, because the increased exposure of workers over a 10 hour shift may not be simply 1.25 times the exposure for eight hours. Models need to be used, to take into account the reduced recovery time after exposure to hazards when extended shifts are worked. Workplaces should always aim for best practice, to keep all exposures significantly below the specified standards which will ensure workers are not over-exposed to a hazard.

Manual tasks

The prolonged performance of repetitive tasks without the adequate chance of rest and recovery may result in an occupational overuse injury. The risk of a musculoskeletal injury occurring may also be increased within extended shifts due to the cumulative effects of muscle fatigue, strains and sprains. Workers involved in repetitive manual tasks should have regular breaks.

For more tips goto

 http://www.deir.qld.gov.au/workplace/subjects/fatigue/managing/factors/index.htm

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