Determination of noise source heights, part II: Measurement of the equivalent source height of highway vehicles

Glegg, Stewart; Yoon, Jong Rak

doi:10.1016/0022-460x(90)90566-i

Cited by 23 publications

(16 citation statements)

References 3 publications

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“…Their noise emission dependence on frequency and vehicle speed is taken according to reference (Makarewicz, 1996). The equivalent sources' positions above the ground are taken according to the reference (Glegg, Yoon, 1990). In the present application, the vehicle division into two classes seems to be sufficient; the differences between the results for the standard traffic composition (only light vehicles, higher flow and speed in the inner lanes) and the real traffic are about 1 dB(A) (Fig.…”

Section: Influence Of Vehicle Noise Emission Modelmentioning

confidence: 91%

“…The simulation program PROP5 used here contains the MAK2 (G = 2) model of a road, where the vehicles are divided into two classes: light (g = l) and heavy (g = h) ones (Makarewicz, 1996;Glegg, Yoon, 1990). The single omnidirectional equivalent point source representing the class has been characterized by (Appendix A):…”

Section: Simulation Proceduresmentioning

confidence: 99%

“…(6)], thus the obtained relations are more complex and concern only the assumed traffic composition; in the analyzed case -the real and standard traffic composition due to their likeness. (Makarewicz, 1996), * * (Glegg, Yoon, 1990).…”

Section: Simulationmentioning

confidence: 99%

“…Thus, in the applied road model MAK2, the representative sets of the equivalent sources for these two classes of vehicles are assumed. The vehicles belonging to the class of light vehicles or the heavy ones, are represented by the single omnidirectional equivalent point source of appropriate parameters (Makarewicz, 1996;Glegg, Yoon, 1990). The simulation tests with the road model have been successively performed for different urban systems Janczur et al, 2001a;.…”

Section: Introductionmentioning

confidence: 99%

“…The term depends on the source power spectrum [Eq. (2)] and the urban system transfer function, describing interactions with the road surroundings. The resulting sound level…”

Section: Simulation Proceduresmentioning

confidence: 99%

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Possible Improvement of Acoustical Climate Part I: Measurements and Theoretical Description

Walerian¹,

Janczur²,

Czechowicz³

et al. 2010

Archives of Acoustics

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In the paper, the simulation PROP5 program is used to predict the sound level in proximity of a road with defined surroundings. The simulation involves road geometry (number of lanes and their positions) and traffic structure (vehicle flow rates and their average speeds), with equivalent omnidirectional point sources representing vehicles. In Part I of the paper, the agreement between measurement and simulation results is tested to verify the accuracy degree of the applied models of a road, as a noise source and propagation throughout surrounding space. In Part II, using the pre-tested simulation program, the possibility of acoustic climate improvement has been analyzed.

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Section: Influence Of Vehicle Noise Emission Modelmentioning

confidence: 91%

Section: Simulation Proceduresmentioning

confidence: 99%

Section: Simulationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…The term depends on the source power spectrum [Eq. (2)] and the urban system transfer function, describing interactions with the road surroundings. The resulting sound level…”

Section: Simulation Proceduresmentioning

confidence: 99%

See 3 more Smart Citations