Noise pollution in traffic congestion spots 10min presentation

2. Noise Pollution At
Traffic Congestion
Spots And Methods
To Control

3. Introduction
 Noise pollution or noise disturbance is the disturbing
or excessive noise that may harm the activity or
balance of human or animal life.
 Noise is considered as environmental pollution, even
though it is thought to have less damage on humans
than water, air or land pollution. But people who are
affected by severe noise pollution know that it is a
massive issue that needs attention.
 Noise (or sound) is measured in the units of decibels
and is denoted by the dB.

4. Introduction
 The source of most outdoor noise worldwide is
mainly caused by machines and transportation
systems, motor vehicles, aircraft, and trains.

5. Source

6. Traffic Noise Pollution
 Road traffic noise is the most important major
source of community noise specially near an
important road with high volume of traffic of any
major city.
 In developing country like Pakistan & India where
Roads are in bad condition, and poorly maintained
and has considerable number of vehicles of
outdated technology , the road traffic noise assumes
much more importance.

7. Traffic Noise Pollution

8. Factors effecting traffic noise
 Type of traffic flow speed,
 Tyre-road surface interaction:
 Road surface condition:
 The noise generated by various parts of vehicle:
 Large H.P. Diesel engine vehicle, Commercial truck,
Tractor-trolly, transport vehicle are the main source
of noise.
 Motor cycles, scooter, tempos, and minibuses are
generally noiser as compared to passenger cars.

9. Effect of traffic noise
 Subjective effect: annoyance, disturbance, dis-satisfaction
and noisiness. It is difficult to measure this precisely.
 Behavioral effect: interference to with sleep, speak or any
general task. It can cause disturbance in enjoyment of T.V.
class room studies and other tasks involving mental
actives.
 Physiological effects: It causes fright phenomena,
resulting in harmful effect in various parts of body
periods. At extremely high level and for a long period of
exposures it may produce deafens Further continuous
noise causes cardiovascular effects, increases blood
pressure. & heart rates.

10. Noise pollution prevention
and control tips
Below are a few things people and governments can do
to make our communities and living laces quieter:
 Construction of soundproof rooms.
 Use of horns with jarring sounds, motorbikes with
damaged exhaust pipes, noisy trucks to be banned.
 Noise producing industries, airports, bus and
transport terminals and railway stations to sighted far
from where living places.
 Vegetation (trees) along roads and in residential areas
is a good way to reduce noise pollution as they
absorb sound.

11. Noise pollution prevention
and control tips
 Roadway noise can be reduced by the use of noise
barriers, limitation of vehicle speeds, alteration of
roadway surface texture, limitation of heavy vehicles, use
of traffic controls that smooth vehicle flow to reduce
braking and acceleration, and tire design.
 An important factor in applying these strategies is
a computer model for roadway noise, that is capable of
addressing local topography, meteorology, traffic
operations, and hypothetical mitigation. Costs of
building-in mitigation can be modest, provided these
solutions are sought in the planning stage of a roadway
project.