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.

For more information on companies in this article

Related Content

  • Pedestrian/cyclist warning sensor
    March 19, 2012
    Following extensive trials, Brigade Electronics has unveiled the new generation Sidescan, a four sensor ultrasonic detector system fitted along the side of trucks or buses to detect cyclists and pedestrians in commercial vehicle blind spots. The system provides an audible warning to the driver and an optional real speech warning of ‘caution vehicle turning’ to the pedestrian or cyclist.
  • Sustainable mobility: innovative solutions needed to reduce traffic emissions
    May 1, 2021
    Kapsch TrafficCom’s Mobility Report 2021 reveals how new ITS measures such as vehicle connectivity and AI-based data processing can help create joined-up traffic management
  • Transport and technology innovation from South Australia
    September 7, 2016
    The Adelaide-headquartered Department for Planning, Transport and Infrastructure has partnered with Sydac and Sage Automation to showcase South Australian transport and technology innovation at the ITS World Congress Melbourne. Visitors to the stand (2213) will be able to try rail and bus training simulators, as well as check out Addinsight, a freeway and arterial road incident detection and congestion management system.
  • Siemens to deliver charging solutions to electric buses to Denmark
    April 11, 2018
    Siemens has entered a three-year agreement with Denmark’s public transport authority Movia to deliver charging stations with a top-down pantograph for electric buses to help slash particle and noise pollution and CO2 emissions. The transaction could potentially benefit 45 municipalities including the city of Copenhagen and Region Zealand. Last year, these towns and two regions of Zealand made a commitment to achieve C02-neutral bus transport by 2030 as part of Movia’s Mobility Plan 2016. In addition, t