Unit 3: Noise Pollution 2
- Created by: rosieevie
- Created on: 09-04-15 20:33
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- Noise Pollution
- Transport
- Controls
- Quieter vehicle design - acoustic insulation around engine and quiet exhaust pipes
- Quieter roads - sound absorbing materials
- Rerouteing traffic to avoid sensitive (residential) areas
- Traffic management produced free-flow traffic - reduces louder noise during acceleration
- Double glazing
- Fences, walls embankments and trees absorb road noise
- Rail transport over road transport
- Controls
- Aircrafts
- Military airfields are in rural areas - minimal pollution
- Most problems by low-level training flights - high risk groups warned e.g. farmers
- Civil airlines cause little pollution except at landing or take off - high altitudes
- Airports often near urban areas - pollution problems
- Controls
- Engine design - large diameter jets and quiet turbines
- Airport layouts - locating taxi areas away from houses
- Earth embankments
- New airports built in rural areas
- Noisy aircrafts banned
- Altered flight paths - away from houses
- Controlled flight times
- Changing rate of climb after take off (steeper flights nosier but affect smaller areas)
- Military airfields are in rural areas - minimal pollution
- Transport
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