Skip to main content

Dartford Crossing gets enhanced PA system

A new traffic safety system installed on The Dartford Crossing, the busiest estuarial crossing in the UK, is benefitting from a high quality public address (PA) system to communicate with drivers in the event of an incident. To combat the noisy road and traffic conditions, PEL Services installed a Bosch Praesideo digital PA system, with master and slave network-controllers and incorporating ambient noise sensing to automatically adjust sound levels to compensate for substantial variations in the levels o
May 25, 2016 Read time: 2 mins
A new traffic safety system installed on The Dartford Crossing, the busiest estuarial crossing in the UK, is benefitting from a high quality public address (PA) system to communicate with drivers in the event of an incident.

To combat the noisy road and traffic conditions, 8431 PEL Services installed a 311 Bosch Praesideo digital PA system, with master and slave network-controllers and incorporating ambient noise sensing to automatically adjust sound levels to compensate for substantial variations in the levels of background traffic noise.  The system has been set to maintain the sound level at 5dB above ambient levels, in real time, to ensure announcements are audible but not anti-socially loud.

Twelve Bosch LBC 3432-03 unidirectional projection speakers have been used with Praesideo at four locations; three speakers on each pole, at different heights to cater for the varying vehicle heights.  The speakers have been configured in a contingent redundant arrangement, as an additional fail-safe. There are three amplifiers for each location including one on standby and the entire system is connected to an uninterrupted power supply.

Related Content

  • New traffic safety system at Dartford Crossing
    May 22, 2015
    From 13 June a new traffic safety system will be in use on the A282 (M25) northbound approach to the Dartford crossing tunnels. The system will identify and stop oversized vehicles or those carrying dangerous goods from entering the tunnels. It will also enable dangerous goods vehicles to be escorted through the tunnels safely and stop traffic in the event of an incident in the tunnels. Electronic message signs on the approach to the traffic safety system will provide drivers with information relating
  • Doha implements traffic control system
    November 21, 2012
    Expansion of ITS systems has accelerated in Qatar this year, with rapid deployment of a traffic control system in Doha. Less than 10 years from now an extensive system of ITS technology will be operating in Qatar, informing and directing users of the country’s roads. That can be stated with confidence for a number of reasons: the world’s richest country per capita will host the World Cup in 2022 and is understood to be planning to develop sophisticated systems of ITS for road safety and traffic managemen
  • Novax IntelliCross system just got smarter
    September 20, 2022
    Just when you thought that the IntelliCross Intelligent Pedestrian System from Canadian manufacturer Novax Industries couldn’t get any smarter – or safer – it did.
  • GMV tech enhances Granada bus travel 
    January 12, 2022
    Passengers in Spanish city can pay using contactless cards, QR codes and EMV cards