Noise in Construction Sites

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Submitted By rambekarose
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TECHNICAL UNIVERSITY OF KENYA

DEPARTMENT OF CIVIL AND CONSTRUCTION ENGINEERING

ENVIRONMENTAL ENGINEERING ASSIGNMENT

111/00502

SAMSON NYAMWEYA

INSTRUCTOR: PROFESSOR THUMBI

ASSIGNMENT: NOISE FROM CONSTRUCTION, CIVIL ENGINEERING WORKS AND ITS CONTROL

Contents INTRODUCTION 3 MEASURES THAT CAN BE TAKEN TO CONTROL NOISE POLLUTION FROM CONSTRUCTION SITES. 4 Community notification 4 Operate plant in a quiet and efficient manner 4 Involve workers in minimizing noise 5 Handle complaints 5 Location of plant 5 Alternatives to reversing alarms 5 Maximize shielding 6 Schedule activities to minimize noise impacts 6

NOISE FROM CONSTRUCTION SITES
INTRODUCTION
Construction sites are often located near existing residential accommodation and by their nature are noisy and open sites. Residents will in general accept construction site noise due to their temporary status.
However, if works starts early or finishes late or if it takes place on a Saturday afternoon, Sunday or public holiday noise complaints may be likely.
In many areas, the recommended hours of operation for construction are: * Monday - Friday: Start 7:30am (with a restriction on the hours of operation heavy plant and machinery and major demolition and construction works until 8:00am) and finish at 6pm. * Saturday: Start 9am. And Finish at 1pm. * Sundays and Bank Holidays: No work permitted.
Construction plant and equipment noise levels can be described in two ways: * sound power level (Lw or SWL), or * Sound pressure level at a given distance (Lp or SPL).
The sound power level is the intrinsic noise output of plant or equipment, and does not depend on distance or orientation of the machine. There are international standards that define methods for determining the sound power level of a machine.
The sound pressure level is the noise at a given distance from plant or equipment, and the sound…...

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