Aircrafts’ taxi noise. Sound power level and directivity frequency band results

Asensio, C.; Pavón, Ignacio; Ruiz, M.; Pagán, R.; Recuero, M.

doi:10.1016/j.apacoust.2009.01.001

Cited by 3 publications

(3 citation statements)

References 2 publications

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“…At present, much attention is still paid to large-scale aircraft noise modelling [6,7] and mapping with an emphasis on aircraft flight performance, rather than the effects of built-up obstacles on noise attenuation [8][9][10]. While many prediction tools mainly focus on the noise from taking offs and landings, noise mapping tools for aircraft taxing have also been developed [11]. On the other hand, with the expansion of air transport and injection of airports and heli-pads into or close to city areas, the effects of morphology of urbanised areas, for instance, the effects of urban street pattern [12,13], have become a concern on aircraft noise distribution near airports.…”

Section: Introductionmentioning

confidence: 99%

Influence of mesoscale urban morphology on the spatial noise attenuation of flyover aircrafts

Hao

Kang

2014

Applied Acoustics

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Section: Introductionmentioning

confidence: 99%

Influence of mesoscale urban morphology on the spatial noise attenuation of flyover aircrafts

Hao

Kang

2014

Applied Acoustics

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“…The directivity of a sound source is one of the parameters that must be considered to determine the effect of noise over a potential receiver, for instance, on traffic noise prediction models [27]. Some measurement techniques can be found on the literature to determine this parameter: stationary vehicle directivity [28]; moving sources [29]; vertical directivity for moving sources (trains [30,31,32], aircraft [33,34], road vehicles [35]); horizontal directivity of road vehicles [36]. In order to determine the radiation pattern of the vehicles, the use of a linear microphone array during pass-by tests may be appropriate to detect the position and speed of the moving noise source [37] and therefore, to obtain the sound pressure level (SPL) for each angle suppressing background noise.…”

Section: Introductionmentioning

confidence: 99%

Acoustic Directivity and Detectability of Electric Powered Two-Wheelers

Poveda-Martínez¹,

Peral-Orts²,

Campillo-Davó³

et al. 2017

Acta Acustica united with Acustica

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Since motorcycles are one of the main sources of noise in urban environments, the use of electric powered two-wheelers may contribute to the improvement of soundscapes in Smart Cities. However, quiet vehicles can lead to an increased risk of accident for pedestrians and other drivers. In order to assess the noise generated by powered two-wheelers and their detectability, five different low capacity motorcycles were measured in a pass-by noise test. The measurements were performed at different speeds using a linear microphone array and a dummy head. The sound directivity radiated by the moving sources was studied with a microphone array. To establish the detectability of powered two-wheelers, thirty-seven subjects participated in an auditory test consisting on a virtual road-crossing scenario. The subjects had to detect the approaching of a vehicle at 20 km/h. The results showed a significant reduction in the sound pressure level emitted by electric motorcycles at low-speed, as well as a notable increase in sound directivity with velocity. The reaction time obtained for the detection of electric powered two-wheelers was higher compared to the traditional propulsion ones. The results highlighted the risk posed by this kind of electric vehicles for pedestrians.

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“…Asensio et al (2009) propose a model that uses radar tracks to reduce the uncertainty to less than half of the ISO model. Asensio et al (2010) designed a system that can detect aircraft sounds in real-time, so that its integration with a monitoring unit can improve aircraft detection rates during unattended measurements.…”

Section: Monitoring Modelling and Simulation For Reducing Noisementioning

confidence: 99%

A review of the impact of noise restrictions at airports

Rodríguez-Díaz

Adenso‐Díaz

González-Torre

2017

Transportation Research Part D: Transport and Environment

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One of the biggest obstacles to the building of new airports and expanding runway capacity is environmental concerns, especially noise. In this paper, we review what has been previously studied in the literature concerning the noise reduction problem around airports from the Air Traffic Control (ATC) perspective. In order to facilitate the knowledge of the current situation, a regulation summary from the USA and EU is provided. We mainly focus our research on operational procedures, since they are one of the easiest improvements nowadays for reducing the impact of noise around airports.Moreover, the paper sums up the modelling, monitoring and simulation tools related to noise at airports proposed in the literature. Finally, special care is taken to review the optimization tools, the objective of which is to take into account the noise problem in order to help, or propose alternatives, to reduce its impact from airport operations.

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Aircrafts’ taxi noise. Sound power level and directivity frequency band results

Cited by 3 publications

References 2 publications

Influence of mesoscale urban morphology on the spatial noise attenuation of flyover aircrafts

Influence of mesoscale urban morphology on the spatial noise attenuation of flyover aircrafts

Acoustic Directivity and Detectability of Electric Powered Two-Wheelers

A review of the impact of noise restrictions at airports

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