Noise Control In Highway Construction

7/9/00


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Table of Contents

Noise Control In Highway Construction

Big Dig

Study Objectives

Noise In Highway Construction

Noise Exposure Evaluation Methods

Targeted Sources

Drilling Rig

Air Compressor

Power Tool Tying Rebars

Short-term Noise Levels

Octave Band Spectra

Noise Control

Hearing Protectors

Noise Reduction Rating (NRR)

Required NRR (dB)

Assessment of Noise Levels: Existing methods

Administrative Controls

Calculating a Noise Perimeter Zone

Calculating a Noise Perimeter Zone

Table #1. Converting Sound Pressure Measurement to Sound Power Level (dB)

Sound Power Level

Calculating a Noise Perimeter Zone

Table #2. Calculating Noise Perimeter Zone from Sound Power Measurement

Calculating a Noise Perimeter Zone

Table #3. Maximum Exposure Time Within a Noise Perimeter Zone

Engineering Controls

Noise Control in Highway Construction

References - Noise Exposures In Construction Workers

Author: Kwangseog Ahn

Email: jmyers@aiha.org

Home Page: http://www.aiha.org

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