Acceso rápido
Zona privada
Quick menu
Private area

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 that best suits your needs.

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.

It’s a given that people 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 according 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 will help you design the best PA/VA solution for your tunnel project.

Metro Bilbao
Metro sevilla
Metro Málaga
Metro rio