Noise level

Noise Level is defined by;

• Steady-state noise intrusion from external sources:
  • Road (and in some cases, rail) traffic noise
  • Industry
  • General environmental noise including external school activity
• Intermittent noise intrusion from external sources:
  • Individual rail pass-bys
  • Aircraft flyovers
  • Rain noise
• Steady-state noise contribution of internal sources:
  • Mechanical ventilation
  • Air conditioning
• Intermittent noise intrusion from internal sources:
  • Hydraulic services