Which of the following is an effective measure for a new construction project to reduce noise from nearby traffic?

Which of the following is an effective measure for a new construction project to reduce noise from nearby traffic?
A . Alter the room geometry and space layouts
B . Provide speech reinforcement and public address systems
C . Suggest lightweight floor constructions below noise generating spaces
D . Recommend high STC or Rw performance values for the building facade, windows and any exterior penetrations

Answer: D

Explanation:

According to the WELL v2™ feature S02: Maximum Noise Levels, the project must achieve desired ambient noise levels such that HVAC, exterior noise intrusion or other noise sources do not impact occupant health and well-being1. One of the strategies to achieve this is to recommend high sound transmission class (STC) or weighted sound reduction (Rw) performance values for the building facade, windows and any exterior penetrations, as they can provide effective sound insulation and reduce noise transmission from outside sources, such as traffic2. Option A is incorrect, as altering the room geometry and space layouts may not have a significant impact on reducing noise from nearby traffic, unless the rooms are relocated away from the noise source or shielded by other structures. Option B is incorrect, as providing speech reinforcement and public address systems may not reduce noise from nearby traffic, but rather add to the internal noise sources that may affect occupant comfort and communication. Option C is incorrect, as suggesting lightweight floor constructions below noise generating spaces may not reduce noise from nearby traffic, but rather increase the impact noise transmission between floors.

Reference: = Standard | WELL V2 – Feature S02: Maximum Noise Levels Noise Control in Buildings – Engineering ToolBox

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