Pass-by Noise Testing Systems for Advanced Environmental Compliance

Revolutionizing transportation noise measurement with precise, cloud-enabled systems designed for regulation, integration, and performance.

Accurate Vehicle Noise Assessment with
Advanced Pass-by Noise Testing Systems

Pass-by Noise Testing Systems are critical for assessing vehicle noise emissions while vehicles are in motion, providing essential data to ensure compliance with environmental and transportation noise regulations. Widely utilized across North America, especially in B2B sectors such as government regulatory bodies, automotive manufacturers, and research organizations, these systems deliver real-time noise monitoring with high precision. Designed for scalability and integration, modern pass-by noise testing solutions feature cloud connectivity and compatibility with smart infrastructure, enabling streamlined data collection and analysis. By offering robust, reliable, and easy-to-deploy technologies, these systems support efforts to reduce noise pollution and promote public health. Envirotest Transport delivers state-of-the-art pass-by noise testing platforms developed through extensive research and collaboration, empowering clients to meet regulatory demands and make data-driven decisions that enhance transportation noise management.

Core Components of Our
Portable Emissions Measurement Systems

Hardware

High-sensitivity microphones compliant with ISO 362-1 standards

Sound Level Meters & Calibrators provide precise acoustic measurements essential for pass-by noise analysis.

Precision triggering units and signal acquisition sensors

Industrial & Asset Monitoring Sensors Sensors capture accurate event timing and signal quality in dynamic noise testing.

Weatherproof and vibration-resistant enclosures for outdoor deployment

Environmental & Agriculture Sensors monitor ambient conditions impacting test accuracy and device durability.

Mobile testing units for field operations

Portable Power solutions ensure reliable energy supply for on-site, flexible noise measurement deployments.

Wireless communication for remote data transmission

LoRaWAN End Devices enable robust, low-power wireless data transfer from distributed noise monitoring stations.

Software

  • Custom-built noise data analysis software with threshold alerting
  • Real-time waveform and spectral analysis tools
  • Integrated diagnostics and system health monitoring
  • Automated reporting for regulatory submissions

Cloud Services

  • Secure cloud-based data storage and remote accessibility
  • Scalable dashboards for multi-site monitoring
  • API integrations for data syncing with external systems
  • Role-based access controls for secure data management

Key Features and Functionalities

  • Automated Detection & Logging: Instantaneous identification and recording of pass-by events
  • Multichannel Recording: Supports stereo and surround configurations for spatial accuracy
  • Environmental Factor Compensation: Adjusts measurements for wind, temperature, and ambient noise
  • Regulatory Calibration Tools: Simplifies calibration per regional and international standards
  • Long-Term Deployment Support: Durable systems for seasonal and long-term studies

Integrations and Compatibility

  • Compatible with traffic monitoring systems, ANPR (Automatic Number Plate Recognition), and vehicle classification systems
  • Easily integrates with smart city platforms, research databases, and municipal data systems
  • API support for major cloud platforms like AWS, Azure, and private cloud infrastructures

Applications

  • Vehicle type approval and homologation
  • Roadside and urban noise pollution studies
  • Compliance audits for commercial fleets
  • Infrastructure planning and environmental impact assessments

Industries We Serve

  • Automotive Manufacturing
  • State and Federal Transportation Agencies
  • Environmental Consulting
  • Urban Development Authorities
  • Academic and Research Institutions

Benefits of Choosing
Envirotest Transport

  • Enhanced Compliance: Supports enforcement with accurate, timestamped data
  • Operational Efficiency: Reduces manual processes through automation
  • Scalable & Flexible: Suitable for temporary studies or permanent installations
  • Data-Driven Insights: Helps planners and regulators improve noise policy frameworks
  • Customer Support: Backed by our experienced U.S.-based technical support team

Relevant U.S. & Canadian
Standards and Regulations

  • SAE J1470
  • ISO 362-1:2015
  • EPA Noise Emission Standards (40 CFR Part 205)
  • ANSI S1.4
  • Canadian Environmental Protection Act, 1999
  • CSA Z107.56

Case Studies

California Department of Transportation (Caltrans)

Caltrans partnered with Envirotest Transport to deploy a network of Pass-by Noise Testing Systems across several urban corridors. These systems provided real-time data to identify noise hotspots, enabling targeted policy updates and improved resident satisfaction.

Michigan Mobility Research Center

Our systems were implemented in a testbed for autonomous vehicle trials. The integration of real-time noise feedback allowed researchers to optimize the acoustic footprint of EV fleets, contributing to sustainable transportation solutions.

Ontario Ministry of the Environment

The Ministry collaborated with Envirotest Transport to monitor highway noise levels near residential zones. The project led to more effective traffic noise mitigation measures, using predictive data analytics made possible through our cloud-based services.

Looking to reduce transportation noise or improve environmental compliance in your operations?

Contact Us Envirotest Transport today for expert guidance, product support, or a customized quote. We’re ready to help you implement smarter, more reliable environmental testing solutions.