Asphalt wearing course optimization for road traffic noise reduction

Vaitkus, Audrius; Andriejauskas, Tadas; Vorobjovas, Viktoras; Jagniatinskis, Aleksandras; Fiks, Boris; Zofka, Ewa

doi:10.1016/j.conbuildmat.2017.06.130

Cited by 65 publications

(26 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Road transport noise is caused by noise from propulsion, aerodynamic resistance, and noise from tire and pavement interactions [3][4][5]. However, tire/road noise due to tire and pavement interactions is dominant at speeds above 40 km/h [6] and is influenced by four major factors [7][8][9][10]: pavement surface characteristics (surface texture, friction, aggregate properties, air-void content (porosity), pavement materials and their properties, pavement age, and durability); tire characteristics (tire dimensions, rubber hardness, trend pattern, tire age and wear, studs, and tire number); environmental factors (temperature, moisture, wind, water film thickness, and dust); and driver-controlled factors (driving speed, tire load and pressure, tangential forces, and acceleration).…”

Section: Introductionmentioning

confidence: 99%

Asphalt Pavement Acoustic Performance Model

et al. 2019

Self Cite

View full text Add to dashboard Cite

Low-noise pavements are used as an effective method of traffic noise mitigation. Low-noise pavements reduce the noise that arises due to interactions between tires and road surfaces (tire/road) via the implementation of three main components: low pavement roughness, negative pavement texture, and a high pavement air-void content. The tire/road noise reduction capabilities of the wearing layer vary depending on the aggregate type, gradation, bitumen and air-void content, and density. Consequently, the demand for an accurate tire/road noise prediction model has arisen from the design of asphalt mixtures. This paper deals with how asphalt mixture components of the wearing layer influence tire/pavement noise reduction and presents a model for tire/road noise level prediction based on the asphalt mixture composition. The paper demonstrates that the noise reduction level of low-noise asphalt pavements is dependent on the composition of the asphalt mixture. Asphalt wearing layer mixture composition parameters were tested in the laboratory from cores taken from 18 road sections, where acoustic properties were measured using a close-proximity (CPX) method. The proposed linear model is based on the bitumen amount, the air-void content of the mixture and aggregate shape and involves materials that comply with the general requirements for high-quality asphalt mixtures. The model allows for the prediction of the tire/road noise level at the asphalt mixture design stage using asphalt mixture components and volumetric properties. The proposed model is the first stage in the building of a complex model with a much wider range of low-noise asphalts components, pavement profile depth and CPX-value relationships.

show abstract

Section: Introductionmentioning

confidence: 99%

Asphalt Pavement Acoustic Performance Model

et al. 2019

Self Cite

View full text Add to dashboard Cite

show abstract

“…The SPB levels obtained were also related to a CPX noise classification, establishing that the SMA11 pavement was within the "normal noise class" (96.5-99.4 dB(A)). Vaitkus et al [19] studied SMA bituminous mixtures from an acoustic absorption point of view. According to this research, their sound absorption coefficient was lower than 0.2.…”

Section: Introductionmentioning

confidence: 99%

Functional Performance of Stone Mastic Asphalt Pavements in Spain: Acoustic Assessment

Vázquez

Terán

Luong³

et al. 2019

Coatings

View full text Add to dashboard Cite

Environmental noise is one of the problems modern societies face today. Traffic noise, especially the noise produced from tire/pavement interaction, plays a main role in environmental noise. Pavement rehabilitation with new bituminous mixtures is a good option for combatting noise pollution in urban areas. This paper studies the functional performance of two bituminous mixtures of stone mastic asphalt (SMA), fabricated with the same polymer modified binder, but with different maximum aggregate size (MAS) (SMA11 and SMA16). The acoustic absorption, the dynamic stiffness, the surface texture and the tire/pavement noise were assessed. The bituminous mixture type SMA16 has higher texture levels at nearly every depicted wavelength of the texture spectra. This characteristic may lead to its higher average tire/pavement sound level compared to the mixture SMA11. The influence of each texture wavelength on the different frequency bands of the tire/pavement noise spectrum was studied, however, this relation is not a simple matter. This paper also presents low-noise pavement labeling methodology (LNP labelingLA²IC). The mixtures SMA11 and SMA16 are labeled at 50 and 80 km/h. An acoustic label is a valuable tool for construction companies and urban planners to use in order to define the best option against noise when pavement rehabilitation must be carried out.

show abstract

“…For road traffic, at suburban traffic speeds (typically above 50 km/h), rolling noise is the main source of noise pollution. Thus, in recent years, studies have focused on low noise pavements [22,23]. Generally, the acoustic characteristics of road pavements are mainly known in terms of pass-by maximum sound pressure levels L A,max in the near field of the road or in terms of CPX index [24] in the tyre near field.…”

Section: Discussionmentioning

confidence: 99%

DEUFRABASE: A Simple Tool for the Evaluation of the Noise Impact of Pavements in Typical Road Geometries

et al. 2019

View full text Add to dashboard Cite

Traffic noise is considered by people as one of the most important sources of environmental discomfort. A way to limit the traffic noise is to reduce the noise emission, for example, by using specific low noise pavements, particularly in suburban areas. However, in real situations, it can be difficult to evaluate the impact of a given pavement, because it depends, for example, on the road geometry, the meteorological conditions, or the distance of the receiver position. Finally it can be difficult to select the most appropriate pavement for a given noise reduction objective. In this paper, a simple method is proposed to evaluate the noise impact of a pavement, in typical road geometries and environmental conditions. The proposed approach uses two databases, the first one based on measurements of emission spectra of road vehicles on several typical pavements, the second one made of pre-calculations of noise propagation for typical road configurations. Finally, the method is implemented in an interactive web tool, called DEUFRABASE, which allows one to obtain a fast estimation of the L Aeq (1 h or 24 h) and L den noise levels for various pavements and road configurations, as functions of the traffic flow and composition. By comparing the method with measurements, it is showed that the tool, although based on a restricted number of pavements and on several simplifications, can predict the noise impact of typical road configurations, with an acceptable error, most often less than 2 dB.In a practical point of view, the choice of a specific road pavement, in order to reach a given noise reduction at a given position (i.e., at a building facade for example), is not trivial, because it depends mainly on the road configuration, the traffic flow and composition, the nature of the soils around the road, the distance of the observation point, the meteorological conditions. . . The use of complex numerical methods (such as the boundary element method or the parabolic equation), although possible, is difficult to implement by road professionals, preferring faster and more functional tools, as close as possible to a practitioner's real needs.The present paper deals with this objective by proposing a simple and fast method to evaluate the noise impact of a given road pavement, in terms of regulatory environmental noise indicators, such as the day-evening-night A-weighted equivalent sound pressure level proposed in the European Directive 2002/49/EC, relating to the assessment and management of environmental noise [3]. The proposed approach is based on the coupling of two databases, one for describing the noise emission from several typical road pavements, and the other for applying the attenuation due to the noise propagation between the sound source and the receiver, for several road geometries and environments.At this stage, it is important to specify that, since the subject of the study concerns the noise impact of road surfaces, the proposed methodology focuses on typical traffic flow of suburban areas, and in particular, con...

show abstract

Asphalt wearing course optimization for road traffic noise reduction

Cited by 65 publications

References 17 publications

Asphalt Pavement Acoustic Performance Model

Asphalt Pavement Acoustic Performance Model

Functional Performance of Stone Mastic Asphalt Pavements in Spain: Acoustic Assessment

DEUFRABASE: A Simple Tool for the Evaluation of the Noise Impact of Pavements in Typical Road Geometries

Contact Info

Product

Resources

About