DAB+ digital radio rebroadcast systems enable tunnel operators to replace audio programmes with live or pre-recorded announcements, providing information and instructions in the event of an emergency. Using such systems allows for timely communication of evacuation procedures in the event of a ﬁre or similar incident ensuring driver safety and effective management of emergency situations.
Digital radio offers the ability to broadcast one to many information and instructions to drivers. This fits with Directive 2004/54/EC of the European Parliament and Council, released in 2004 which requires all nations in the EU to provide a minimum safety requirement for tunnels in the trans-European road network. Digital radio offers a cost effective solution to solution to provide this minimum set of safety requirements.
Click here for Directive 2004/54/EC of the European Parliament and of the Council of 29 April 2004 on minimum safety requirements for tunnels in the trans-European road network.
Service following is the term for maintaining the same audio or data in varying reception conditions, when travelling by car or train.
Many broadcast network topologies are possible; the tuned service may be carried on an ensemble with multiple tuning frequencies, on more than one ensemble, may carry common programming with other DAB+ services and audio services may also be carried on FM-RDS or another bearer.
- Service following fact sheet
- Rules of implementation: Service information features ETSI TS 103 176 V1.1.2 (2013-07)
- Service following and traffic announcements technical trial: UK April 2013
TPEG traffic and travel data
DAB+ represents a major advancement for real time traffic and travel information as it allows for larger amounts of traffic and travel information to be broadcast with more accurate, detailed information. This is relayed and updated faster and is free to air.
TPEG replaces and enhances RDS TMC using the DAB family of standards as the ideal platform for traffic and travel information. Traffic and Travel Information (TTI) data services require less than 1.4% of the total data capacity to provide services for drivers which include:
- Traffic event / news
- Traffic weather
- Driver assistance
- Local hazard warning
- Traffic flow / prediction
- Parking information
The TPEG standard is part of TISA for further details on and to obtain the standard please contact TISA.