ISO/TR 17534-2:2014

Overview

ISO/TR 17534-2:2014 is a technical report in the ISO 17534 series that provides general recommendations for implementing outdoor sound calculation methods in software. It defines a geometrically described set of test cases and specifies a Quality Assurance (QA) Interface to enable data exchange between software products that are quality assured according to ISO 17534‑1. The report supports consistent, reproducible noise modelling and software verification for outdoor acoustics.

Key topics

• General recommendations for implementing calculation methods in acoustic software (method‑independent guidance).
• A library of test cases (T01–T15) covering typical outdoor scenarios, including:
  • Flat ground with homogeneous or spatially varying acoustic properties
  • Ground with varying heights and contour definitions
  • Long and short barriers and reflecting barriers
  • Cubic and polygonal buildings for screening and diffraction tests
  • Multiple building configurations and mixed ground areas
• Detailed input data examples: coordinates for sources and receivers, octave‑band sound power levels, area definitions, barrier and building geometries and contour lines.
• Quality Assurance Interface specification that enables standardized exchange of QA data between compliant software tools.
• Guidance on using the test cases as a basis for method‑specific Technical Reports and step‑by‑step validation procedures.

Practical applications

• Validation and verification of outdoor sound calculation software used for environmental noise assessment, urban planning, and infrastructure projects.
• Interoperability and QA: the QA Interface lets developers and verification labs exchange results and demonstrate conformity to ISO 17534‑1 quality requirements.
• Use by acoustic consultants and modelers to benchmark software performance against standardized test scenarios (barriers, buildings, varying ground).
• Support for regulators, certification bodies, and procurement teams that need reproducible test cases and QA evidence when approving or comparing noise modelling tools.
• Reference for researchers and educators developing or teaching noise prediction methods and software testing practices.

Related standards

• ISO 17534‑1 - Acoustics: Software for the calculation of sound outdoors - Part 1: Quality requirements and quality assurance (main quality criteria referenced by the TR).
• ISO 17534 series includes method‑specific Technical Reports (e.g., planned Part 3 covering ISO 9613‑2 implementation guidance).

Keywords: ISO/TR 17534-2:2014, acoustics, outdoor sound calculation software, test cases, QA interface, noise modelling, ISO 17534, ISO 17534-1, quality assurance.