Monday, 19 November 2012

Accidents in Waste Handling

Introduction
The UK produces in the order of 400 millions tonnes of waste each year, of which only about a quarter comes from domestic households.  The handling and processing of this waste is, consequently, a large industry.

HSE statistics reveal that the number of fatal accidents in the waste management sector is over 16 times the national average, while accident rates in this sector are over four times the national average.

Table 1: Typical accident rates in the waste industry (2010/2011) Source HSE statistics

Industry
Accident rates per 100,000 workers
Fatalities
Major Injury
Over Three-day
All Injuries
Waste
10
438
1954
2447
All Industries
0.6
99
363
462

Causes of accidents
There are several main categories for accidents in the industries associated with waste handling:
     Manual handling injuries (41 %)
     Slips, trips and falls (26 %)
     Struck by objects (16 %)
     Falls, from vehicles (6 %)
     Transport related accidents (4 %)
     Machinery related injuries (3 %)

For manual handling injuries, typical causative factors include:
     Lifting or performing a movement with too much force
     Lifting or performing a movement in an awkward position, or
     Repeating the lift/movement too often

With respect to slips, trips and falls, typical causative factors include:
     Storing materials or other unnecessary items on walkways and in work areas.
     Creating and/or using wet, muddy, sloping or otherwise irregular walkways and work surfaces.
     Constructing and or using improper walkways, stairs or landings or damaging these  surfaces
     Creating and/or using uneven terrain in and around work areas
     Working from elevated work surfaces and ladders
     Using damaged or defective steps to enter vehicles

Workers may be struck by falling objects or, more commonly, by objects that have been thrown.

Machinery related accidents cover a very wide range of machine types and accident types.  Some of these are fatal; while others may lead to serious, severe injuries, including: amputations, crush injuries, severe cuts, etc.  There have been many reported cases (including prosecutions) arising from the use of conveyors.  Workers are injured as a result of poorly guarded conveyor systems, especially in cases where workers are attempting to remove an obstruction from the conveyor while it is still in operation.

Some categories of transport related accident are more common in the waste industry (especially kerbside collections) than elsewhere, such as:

     Workers having their ankles and feet run over by forward-moving vehicles; either due to standing too close or due to slipping/tripping from kerbs whilst the vehicle is moving past.
     Workers being injured whilst trying to get onto or off moving vehicles.
     Reversing vehicles being guided by two ‘banksmen’ and striking one whilst the driver was watching the other for instructions.
     Banksmen failing to stop reversing vehicles with either verbal or hand signals and either being struck themselves or resulting in others being struck.
     Workers not expecting vehicles to move, and being struck, such as when the driver was not aware of the worker behind the vehicle.

Avoiding accidents
Many of the steps that may be employed to avoid accidents and injuries are simple, relatively low cost measures.  Avoiding manual handling injuries can be achieved through:
     Providing appropriate mechanical assistance and equipment (such as carts, trolleys, adjustable work stations for the operators and appropriate tools).
     Providing this equipment in convenient locations.
     Training workers in appropriate manual handling techniques and the avoidance of ergonomic risks, etc.
     Undertaking suitable and sufficient assessments of the risks for the manual handling operations undertaken and introducing suitable measures to avoid and/or control the risks arising.
     Reviewing the size, shape and weight of materials to be moved, especially those that are handled regularly.
     Reviewing the design of vehicles, such as (retro) fitting tail gates lifts and scissor lifts, etc.

In line with many other industry sectors, slips and trips can be avoided or controlled by fairly measures, including:
     Ensuring good standards of housekeeping in work areas – avoid the build up of litter, debris and other general detritus.
     Ensuring that adequate lighting is provided to all work areas.
     Ensuring that suitable safety footwear is provided to workers and that it is worn as appropriate.
     Providing suitable, robust handrails, to steps and stairs, etc.
     Reviewing the layout and design of the work area.
     Ensuring that all floors are even and are maintained in good condition (through regular inspection and maintenance).
     Ensuring that all floors are constructed from suitable materials and (where appropriate) are designed to be non-slippery when wet.
     Cleaning up spillages promptly and ensuring that suitable materials are available and that suitable procedures are in place).

Falls from heights involving vehicles can be avoided and/or reduced by:
     Training workers to be aware of the risks of falling from vehicles, even from simple operations such as getting into and out of cabs.
     Working at the culture endemic in the waste industry of “it won’t happen to me
     Reviewing the design and layout of areas where waste materials are loaded and unloaded onto vehicles.
     Avoiding working from heights (such as elevated surfaces and ladders) by reviewing the activities and modifying the operations and/or the work area as appropriate.
     Reviewing the design of vehicles, such as (retro) fitting tail-gates lifts and scissor lifts, etc.

Many of the accidents involving machinery can often be avoided by:
     Ensuring that all machinery is designed (and maintained) to be as safe as is practicable.
     Ensuring that machine guards are available and are in place at all times.
     Introducing regular inspections of machinery, looking for defects in the equipment and checking for any defective or missing guard or other safety features (such as interlock systems).
     Instructing workers in the safe operation of the machinery and, especially, in the actions to be taken when clearing obstructions, etc. 
     Ensuring that emergency stop controls are operational and are sited in suitable locations.

Many of the transport related accidents can be avoided by greater attention to the task in hand (such as by removing the culture of “it won’t happen to me” that exists within the waste and transport industry) and encouraging workers not to take shortcuts or to adopt sloppy practices.  Further training of both the banksmen and the drivers in accurate communication will also have a beneficial effect in preventing many vehicle related accidents and injuries.

It is relatively simple to prevent workers being struck by thrown objects: prohibit the throwing of objects.  If this is not a reasonably practicable solution, then organise the work area such that workers are not in the line of fire of thrown objects.

Summary
Many people are hurt and killed each year as a result of working in the waste industry.  Many of these accidents can be avoided by implementing a few relatively simple measures:
     Undertaking suitable and sufficient assessments of the risks arising from operations and implementing (and enforcing the use of) suitable control measures
     Further training (including risk awareness training as well job specific training).
     Changing the culture of “it won’t happen to me” to a more positive and proactive culture.
     Improving and monitoring housekeeping standards.
     Improving and monitoring the use and condition of machine guards and other safety features.

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