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Prediction of noise changes due to traffic speed control
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10.1121/1.2769972
/content/asa/journal/jasa/122/4/10.1121/1.2769972
http://aip.metastore.ingenta.com/content/asa/journal/jasa/122/4/10.1121/1.2769972

Figures

Image of FIG. 1.
FIG. 1.

A road consists of three cruise segments (with the vehicle speeds , , and the A-weighted sound exposures , , ), deceleration segment (with ) and acceleration segment (with ).

Image of FIG. 2.
FIG. 2.

Distance (Eq. 6) between the vehicle and the receiver .

Image of FIG. 3.
FIG. 3.

Noise reduction at the height , calculated for the hard ground in Japan , with the traffic speeds and , where the road segment length .

Image of FIG. 4.
FIG. 4.

Noise reduction at the height , calculated for the soft ground in Japan , with the traffic speeds and , where the road segment length .

Image of FIG. 5.
FIG. 5.

Noise reduction at the height , calculated for the hard ground in Poland , with the traffic speeds and , where the road segment length .

Image of FIG. 6.
FIG. 6.

Noise reduction at the height , calculated for the soft ground in Poland , with traffic speeds and , where the road segment length .

Image of FIG. 7.
FIG. 7.

Noise reduction at the height , calculated for the soft ground with the emission characteristic , traffic speeds and , where the road segment length .

Image of FIG. 8.
FIG. 8.

Noise reduction at the height , calculated for the soft ground with the emission characteristics, , and steady speeds , , where the road segment length .

Image of FIG. 9.
FIG. 9.

The critical length as the function of the noise emission characteristic, , for the traffic speeds (, ), (, ), and (, ). The required deceleration rates, , and acceleration rates, , have been taken from Tables I and II.

Tables

Generic image for table
TABLE I.

Automobile deceleration rate for the steady speed and the reduced speed (see Ref. 29).

Generic image for table
TABLE II.

Automobile acceleration rate for the steady speed and the reduced speed (see Ref. 29).

Generic image for table
TABLE III.

Critical lengths and of the road segment (with the reduced speed ) calculated from Eq. (58) and Tables I and II), for automobiles driving in Japan and in Poland .

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/content/asa/journal/jasa/122/4/10.1121/1.2769972
2007-10-01
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Prediction of noise changes due to traffic speed control
http://aip.metastore.ingenta.com/content/asa/journal/jasa/122/4/10.1121/1.2769972
10.1121/1.2769972
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