This presentation will cover the important training aspects on noise awareness

1. MAIN CONTRACT 3 (MC3)
MUSCAT INTERNATIONAL AIRPORT
Noise
Awareness Training
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2. Welcome
 Trainer
 Toilets
 Alarms
 Mobile phones
 Attendance sheets
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3. Noise
Definition
 An unwanted
sound, that is
loud,
unpleasant,
and usually
undesired
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4. Noise
Hazards
So what are the hazards?
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5. Noise
Hazards
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 Intensity
 Pitch
 Duration

6. Noise
Hazards
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Noise Induced Hearing Loss (NIHL)
 Acoustic Trauma
 Conductive hearing loss
 Presbyacusis
 Sensorineural hearing loss
 Mixed
 Balance
 Co-ordination

7. Noise
Hazards
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8. Noise
How it Happens
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9. Noise
How it Happens
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10. Noise
How it Happens
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11. Noise
How it Happens
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12. Noise
How it Happens
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13. Noise
How it Happens
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14. Noise
How it Happens
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15. Noise
Legislation
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In the event high noise areas
that exceed 85 dBA (85 dBA
prorated to 08 hour work day
as per Sultanate of Oman
,Ministry of Manpower,
Ministerial decision No.
(286/2008) are identified,
control measures will be
taken.

16. Noise
Guidance
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17. Noise
Guidance
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 Generators - 105.6 dB
(A)
 Roller Compactors - 107.1 dB (A)
 Grader - 98.5 dB (A)
 Bulldozer - 111.0 dB (A)
 Loader - 108.2 dB (A)

18. Noise
Guidance
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 Generators - 105.6 dB
(A)
 Roller Compactors - 107.1 dB (A)
 Grader - 98.5 dB (A)
 Bulldozer - 111.0 dB (A)
 Loader - 108.2 dB (A)

19. Noise
Inverse Square Relationship
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As the intensity varies
inversely with the square of
the distance from the source.
So if the distance from the
source is doubled (increased
by a factor of 2), then the
intensity is quartered
(decreased by a factor of 4).

20. Noise
Legislation
20

21. Noise
Control Measures
So what are the control measures ?
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22. Control Measure
Design
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23. Control Measure
Barriers
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24. Control Measure
Distance
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 30
m

25. Control Measure
Time decrease
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26. Control Measure
Equipment Maintenance/Servicing
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27. Remember
Vibration – separate topic
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Scientific researches emphasized the fact that
noise and vibration, exceeding
certain intensity have negative consequences
for the safety and operational characteristics of
technical equipments as well as for the
safety and quality of the products.
In the same time, clinical researches
highlighted on statistical bases the fact that
noise and vibration exceeding certain limits
have negative medical effects by affecting the
health and working capacity of the
employees.

28. Control Measure
Temporary Barricades & Hazard Warning Signage
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29. Control Measure
Hearing Protection
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30. Control Measure
Double Hearing Protection
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31. Control Measure
Manufacturer Guidance
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A-weighted noise level (dB) Select a protector with an SNR of …
85-90 20 or less
90-95 20-30
95-100 25-35
100-105 30 or more

32. Control Measure
PPE
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33. Warning
Hearing Protection
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ISOLATIONISM

34. Control Measure
Health Surveillance
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35. Bad Practices
Noise
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36. Bad Practices
Noise
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37. Bad Practices
Noise
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38. Bad Practices
Noise
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39. Bad Practices
Noise
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40. Bad Practices
common equipments noise is forgotten
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41. Good Practices
Noise
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42. Good Practices
Wispalite
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43. Good Practices
Barriers
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44. Good Practices
Access Control
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45. Hazard Warning Signage
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Good Practices

46. Health Surveillance – Audiometric Testing for Piling workers – Quarterly basis
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Good Practices

47. PPE Storage
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Good Practices

48. Noise
Summary of Noise Control Measures
Barriers
Distance
Time (decrease)
Barricades & Signage
PPE
Health Surveillance
Storage (hygiene)
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49. Any Questions ?
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