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Which of the following measure is effective in controlling traffic noise?

83. Which of the following measure is effective in controlling traffic noise?

1. Proper Highway planning and design can reduce noise control effectively
2. Underground tunnels can effectively reduce traffic noise.
3. Trees plantation along the sides of the road can reduce the noise level.
4. All of the above

Answer: D) All of the above

Explanation:

Measures which will control the traffic noise are as follows:

• Proper Highway planning and design can reduce noise control effectively
• Underground tunnels can effectively reduce traffic noise.
• Trees plantation along the sides of the road can reduce the noise level.