---
title: "PA/VA Systems for Tunnels"
description: "Tunnels worldwide choose LDA Audio Tech for their public address and voice evacuation installations certified to EN 54 standard"
url: https://lda-audiotech.com/en/pava-systems-for-tunnels/
date: 2017-12-05
modified: 2026-04-08
author: "LDA Marketing"
image: https://lda-audiotech.com/wp-content/uploads/2017/10/tuneles.jpg
type: page
lang: en
---

# PA/VA Systems for Tunnels

# PUBLIC ADDRESS AND VOICE ALARM SYSTEMS FOR TUNNELS

At LDA we are experts in **public address and voice evacuation systems for tunnels**. That’s why we can help you create the most competitive solution which best suits your needs.

## Our references

- [![Traffic tunnels in Brazil - LDA References](https://lda-audiotech.com/wp-content/uploads/2025/03/Brazil-tunnels-LDA-references-01-500x380.jpg)](https://lda-audiotech.com/en/portfolio_page/traffic-tunnels-brazil/) ### [Traffic tunnels in Brazil](https://lda-audiotech.com/en/portfolio_page/traffic-tunnels-brazil/) Tunnels [zoom](https://lda-audiotech.com/wp-content/uploads/2025/03/Brazil-tunnels-LDA-references-01-500x380.jpg)[view](https://lda-audiotech.com/en/portfolio_page/traffic-tunnels-brazil/)
- [![Faneque Tunnels - LDA References](https://lda-audiotech.com/wp-content/uploads/2024/06/Faneque-tunnels-LDA-references-01-500x380.jpg)](https://lda-audiotech.com/en/portfolio_page/faneque-tunnels/) ### [Faneque Tunnels](https://lda-audiotech.com/en/portfolio_page/faneque-tunnels/) Tunnels [zoom](https://lda-audiotech.com/wp-content/uploads/2024/06/Faneque-tunnels-LDA-references-01-500x380.jpg)[view](https://lda-audiotech.com/en/portfolio_page/faneque-tunnels/)
- [![LDA Audio Tech tunnels pa/va](https://lda-audiotech.com/wp-content/uploads/2018/04/tunnel_l_olleria_lda_audiotech-500x380.jpg)](https://lda-audiotech.com/en/portfolio_page/l-olleria-tunnel/) ### [L’Olleria tunnel](https://lda-audiotech.com/en/portfolio_page/l-olleria-tunnel/) Tunnels [zoom](https://lda-audiotech.com/wp-content/uploads/2018/04/tunnel_l_olleria_lda_audiotech-500x380.jpg)[view](https://lda-audiotech.com/en/portfolio_page/l-olleria-tunnel/)

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[Download complete list of references](https://lda-audiotech.com/descargas/references/lda_audio_tech-references_en.pdf)

### Tricky environments with clear acoustics

Public address and voice alarm systems for tunnels must compensate for complex situations of **reverberation and ambient noise** to ensure a clear understanding of the messages. Intelligent technologies based on filters and sound modulation help to compensate for these circumstances.

**People tend to act faster when they hear a human voice** telling them what to do or how to proceed, especially in case of emergency.LDA Audio Tech’s public address and voice alarm systems **certified to EN 54 and EN 60849** provide intuitive user management and are easily integrated with existing third-party technologies at tunnels.LDA Audio Tech offers:

- **Distributed** system.
- High **intelligibility and directivity**.
- Integration with **SCADA** (Modbus or Ethernet).
- **SNMP** supervision.

Contact us and we’ll help you design the best PA/VA solution for your tunnel project.

[Contact us](/en/contact/)

[](/en/2017/01/26/en-54-voice-alarm-system/)

[Read More](/en/2017/01/26/en-54-voice-alarm-system/)