Silencing the Roar: Element’s Noise Impact Assessment for National Highways on M32 Eastville Viaduct

Background

National Highways manages the motorways and major A-roads across England, and is committed to minimizing environmental impacts while maintaining efficient transportation networks. The M32 Eastville Viaduct in Bristol had become a significant source of noise pollution as traffic volumes increased over the years. With nearby residential areas experiencing heightened noise disturbance, National Highways sought a partner with deep acoustics expertise to assess the situation and develop effective mitigation strategies. Element have a proven track record in transportation acoustics, and a comprehensive approach to noise impact assessment. 

The challenge

The M32 Eastville Viaduct presented a complex challenge for noise mitigation. As a major arterial route into Bristol, traffic volumes had increased over the past decade which, combined with the viaduct’s proximity to nearby residential areas, created significant noise disturbance for local communities. It was crucial for National Highways to ensure the wellbeing of the community, while still maintaining traffic flow.  

The solution

Element’s acoustics experts stepped in to tackle this problem comprehensively carrying out a Noise Impact Assessment. They initiated a rigorous data collection process, spanning 12 months and encompassing various locations. This data served as the foundation for their detailed acoustic analysis, providing essential technical insights pivotal to designing an effective road traffic noise reduction scheme. 

Utilizing cutting-edge technology, such as Air Dispersion Modeling, the acoustics team constructed a sophisticated 3D noise model of the viaduct's vicinity, considering multiple factors and scenarios. This comprehensive model incorporated the M32 Eastville Viaduct and surrounding residential areas. The aim was to assess various noise barrier configurations and their potential impact on reducing noise pollution. All work was carried out in accordance with BS 7445.

The result

Element’s solution yielded promising outcomes. Our in-depth analysis and meticulous planning paved the way for a robust noise mitigation scheme. By leveraging the 3D noise model, we identified optimal barrier scenarios, offering National Highways a range of solutions to effectively reduce noise pollution in the area. 

This work signified a proactive approach toward addressing the issue of noise pollution around the M32 Eastville Viaduct. The collaboration between the acoustics team and National Highways underscores a commitment to community well-being and sustainable infrastructure development.