Performance Assessment of Low-Noise Road Surfaces in the Leopoldo Project: Comparison and Validation of Different Measurement Methods

Licitra, Gaetano; Cerchiai, Mauro; Teti, Luca; Ascari, Elena; Bianco, Francesco; Chetoni, Marco

doi:10.3390/coatings5010003

Cited by 44 publications

(26 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The first rubberized surface here analyzed is one of the experimental pavements laid within the LEOPOLDO project [30]. This experimental surface is a gap graded 0/8 with a bitumen mixture modified by the addition of rubber crumb recycled from scrap tires, through the wet process [31].…”

Section: A Case Study: the Leopoldo Project Sitementioning

confidence: 99%

Durability and variability of the acoustical performance of rubberized road surfaces

et al. 2015

View full text Add to dashboard Cite

a b s t r a c tThe use of road surfaces with low noise emission characteristics is one of the actions mostly applied all over the world to decrease the number of road traffic noise annoyed people. Since many Italian roads are going to be paved with such surfaces, the LEOPOLDO project (funded by the Tuscany Region and the Italian Ministry of Transportation) was planned to check the efficacy in time of this action. Among all solutions, rubberized road surface is one of the most applied in USA, Canada, Europe and Asia. This paper describes results obtained by monitoring four rubberized surfaces one year after the laying and by evaluating the time stability of LEOPOLDO one by means of the Close Proximity method (CPX). All surfaces here analyzed are laid in real scenarios, so the actual efficacy of this action is evaluated. The results on the LEOPOLDO surface show spatial homogeneity, a good time stability and a significant noise emission reduction. Instead, analysis of the four rubberized surfaces shows variability in the results, probably due to the pavement installation quality, as supported by the data. Thus, the rubberized road surface looks to be a very efficient mitigation technology, providing the installation have been carried out with care and proficiency.

show abstract

Section: A Case Study: the Leopoldo Project Sitementioning

confidence: 99%

Durability and variability of the acoustical performance of rubberized road surfaces

et al. 2015

View full text Add to dashboard Cite

show abstract

“…SPB measurements include not only all vehicle noise sources and the efect of all propagation mechanisms, but also include other acoustic information near the measurement. For the evaluation of roadside noise through the SPB method, unreliable results due to the inluence of surrounding conditions, even using a modiied procedure, have been reported [36]. Records with head and torso simulator are in reality the SPB measurements, having precisely the same problems Figure . For annoyance or vehicle detection tasks, noise measurements contaminated with undesired sounds are an impediment to adequately accomplishing the task.…”

Section: Noise Measurementmentioning

confidence: 99%

Tyre/Road Noise Annoyance Assessment Through Virtual Sounds

Freitas¹,

Lamas²,

Silva³

et al. 2016

Advances in Noise Analysis, Mitigation and Control

View full text Add to dashboard Cite

Road-traic noise is the most signiicant source of environmental noise. Among the several diferent sources of noise emission from vehicles, tyre/road noise at speeds above 40 km/h is the most prevalent. Its negative impact on health is now beter known and may be mitigated by optimising road surface characteristics. Experimental data linking the characteristics of the road surface to levels of annoyance regarding noise remain scarce. Moreover, assessing annoyance by experimental means using real sounds is complex and could impede study interactions with a wide set of variables. In this chapter, we describe, discuss and present the results of a straightforward method to assess tyre/road noise and related annoyance, based on the virtual sounds made by vehicles, with no interferences.

show abstract

“…Nevertheless, this relation has not been used in this research work due to some reasons that are given below: SPB and CPB methods highly depend on the section where measurements are carried out. The microphones must be located in an acoustic free field (see for instance Tonin [23], Licitra [24] or Sandberg [10]), however, some of the sections studied in this work cannot be considered as free field.…”

Section: Environmental Noise Levels From Close Proximity (Cpx) Noise mentioning

confidence: 99%

Surface Aging Effect on Tire/Pavement Noise Medium-Term Evolution in a Medium-Size City

et al. 2018

View full text Add to dashboard Cite

This paper presents the geo-referenced acoustical results obtained throughout the close proximity noise (CPX) technique carried out on different urban sections included within the 2017 strategic noise mapping (Directive 2002/49/CE) in Ciudad Real, a Spanish medium-sized city. The employed methodology quantifies the tire/pavement noise generated in the contact between the tire and the surface of the studied sections. Measurements were carried out in different research campaigns between 2008 and 2015 (medium-term evolution). They give valuable information about the pavement-aging effect on its surface characteristics. Throughout these years, the acoustic situation of these sections has worsened mainly due to surface damage and higher mean profile depth (MPD) values, although the performance does not follow the same pattern in every section. The relationships between measured tire/pavement noise and theoretical environmental noise, just due to the geometric spreading of sound energy, is also studied in order to elaborate a simple rolling noise mapping and to assess the environmental noise evolution. Traffic noise plays the main role in the noise registered within the assessed sections, therefore, CPX assessment could be used by local authorities to take decisions regarding urban planning and traffic management, with the aim of reducing noise exposure from traffic.

show abstract

Performance Assessment of Low-Noise Road Surfaces in the Leopoldo Project: Comparison and Validation of Different Measurement Methods

Cited by 44 publications

References 4 publications

Durability and variability of the acoustical performance of rubberized road surfaces

Durability and variability of the acoustical performance of rubberized road surfaces

Tyre/Road Noise Annoyance Assessment Through Virtual Sounds

Surface Aging Effect on Tire/Pavement Noise Medium-Term Evolution in a Medium-Size City

Contact Info

Product

Resources

About