Resources

AXYS Tunnel

Intelligent Solutions for Delivering Speech Intelligibility

Keeping passengers safe and on the move are the key priorities for tunnel managers and operators. A good PA system can help overcome some of the challenges faced on a day-to-day basis by providing an effective means of communication between the tunnel operators and tunnel users.

HARMAN’s specialist brand, Axys Tunnel, delivers industry-leading public address and voice alarm solutions for road and rail tunnels. Known for exceptional speech intelligibility in high-noise, challenging environments, Axys Tunnel systems are engineered for clear, reliable communication—especially when safety depends on it.

AXYS Tunnel Installations

A wide range of AXYS Tunnel installations can be found around the globe supporting the unique needs of tunnel visitors and operators. 

Installation: St. Helena, Australia

AXYS Tunnel Emergency Sound System installation in St. Helena, Australia that is driven by ABF-260 tunnel horn loudspeakers.

Installation: Olandixo, Spain

AXYS Tunnel Public Address and Voice Alarm System installation located in Olandixo, Spain that was designed for intelligible speech.

Installation: Grouft, Luxembourg

AXYS Tunnel installation in Grouft, Luxembourg, featuring loudspeakers and tunnel horns.

Public Address Solutions for Tunnels

VA (Voice Alarm) or PA/VA (Public Address/Voice Alarm) audio systems are now common place in large public spaces and transport facilities. A well designed and commissioned system can provide a highly effective means of communication with the public. The primary purpose of such systems is to communicate information when an emergency arises, thus clarity/intelligibility is of the utmost importance, so that people can move to safety as quickly and effectively as possible. 


Why Don't Conventional Loudspeakers Work?

Tunnels are very challenging environments for sound system designers. When designing a sound system there are several factors to consider. The key factors are:

  • Poor Acoustics: The reverberation and reflections within a tunnel are not conducive to achieving high levels of speech intelligibility. This is due to the acoustically hard properties of tunnel surfaces (walls, road, etc.).
  • Distortion: Distortion can have a negative affect on how easy it is to understand a message within a tunnel.
  • Noise: Noise generated by cars and ventilation systems creates a poor signal-to-noise ratio.

Public Address Solutions for Tunnels Brochure

Project Assistance – Technical Sales Support for Public Address in Complex Environments

We understand that delivering clear, reliable communication in large public spaces and transport infrastructure, such as tunnels, stations, and transit hubs, requires specialist expertise. Our Technical Sales Support Team is here to assist with the design and specification of public address systems that meet the unique acoustic and safety challenges of these environments. With access to advanced design tools, in-house engineering knowledge, and partnerships with world-leading manufacturers, we can support you across every stage of your project, from concept and modelling through to specification and commissioning advice. 

Get in touch

To find out more, get in touch with our Customer Support Team on 1800 00 77 80 or complete the form below.

Captcha Image
Signature
Products to compare:
Comparing Products
Your browser currently does not support some features required by this site. Please try another browser