ISO 11819-1:2023
Acoustics — Measurement of the influence of road surfaces on traffic noise — Part 1: Statistical pass-by method

Standard No.

ISO 11819-1:2023

Release Date

2023

Published By

International Organization for Standardization (ISO)

Latest

ISO 11819-1:2023

Scope

This document specifies a method of comparing traffic noise on different road surfaces for various compositions of road traffic for the purpose of evaluating different road surface types. Sound levels representing either light or heavy vehicles at selected speeds are assigned to a certain road surface. The method is applicable to traffic travelling at constant speed, i.e. free-flowing conditions at posted speeds of 50 km/h and upwards. For conditions where traffic is not free flowing, such as at junctions and where the traffic is congested, the method is not applicable. A standard method for comparing the noise characteristics of road surfaces gives road and environment authorities a tool for establishing common practices or limits regarding the use of road surfaces meeting certain noise criteria. However, it is not within the scope of ISO 11819 (all parts) to suggest such criteria. The statistical pass-by (SPB) method is suitable for use for the following main purposes: — to classify road surfaces according to their influence on traffic noise (surface classification); — to assist in verifying conformity of production of road surfaces; — to evaluate acoustic performance of road surfaces throughout operation relative to new condition; — to evaluate the influence of different road surfaces on traffic noise at sites irrespective of condition and service time; — to evaluate acoustic performance of a road surface relative to a reference surface. Due to practical restrictions, the method cannot be applied at all possible locations. However, the backing board method can allow some locations to be tested that were not previously acceptable. Clause 5 gives a general description of the SPB method.

ISO 11819-1:2023 Referenced Document

• IEC 60942:2017 Electroacoustics - Sound calibrators
• IEC 61183 Electroacoustics - Random-incidence and diffuse-field calibration of sound level meters
• IEC 61260-1 IEC 61260-1: Electroacoustics - Octave-band and fractional-octave-band filters - Part 1: Specifications
• IEC 61672-1 Electroacoustics - Sound level meters - Part 1: Specifications
• ISO 1996-2 Acoustics - Description, measurement and assessment of environmental noise - Part 2: Determination of sound pressure levels
• ISO/IEC 17025 General requirements for the competence of testing and calibration laboratories [Standard in French]
• ISO/IEC Guide 98-3 Uncertainty of measurement - Guide to the expression of uncertainty in measurement (GUM:1995). Extension to any number of output quantities

ISO 11819-1:2023 history

• 2023 ISO 11819-1:2023 Acoustics — Measurement of the influence of road surfaces on traffic noise — Part 1: Statistical pass-by method
• 1997 ISO 11819-1:1997 Acoustics - Measurement of the influence of road surfaces on traffic noise - Part 1: Statistical pass-by method