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.
Urban Traffic Control

For more information on companies in this article

Related Content

  • In-vehicle fleet management system reduces losses
    May 4, 2012
    Loomis offers products and services that provide complete cash logistics solutions for financial institutions, retailers and other commercial enterprises. The company is present in twelve European countries and the USA and has just over 20,000 employees. At Loomis safety is considered good business. Presented with the opportunity to reduce both accident frequency and associated primary liability costs, the company equipped the majority of its US armoured truck and van fleet with the Driver Safety Measuremen
    Read More
  • Copenhagen to showcase ITS in action at ITSWC 2018
    December 18, 2017
    As delegates head for the 2017 ITS World Congress in Montreal, we talk to Copenhagen mayor Morten Kabell about why his city is the ideal location for next year’s event. It may have been a long time coming but the ITS World Congress will be in Copenhagen in 2018 and there can be few more fitting places to host the event. By any number of metrics - interconnected transport, cycle commuting, safer streets, reduced pollution, sustainable energy and quality of life - the Danish capital has implemented what m
    Read More
  • Data holds the key to combating VRU casualties
    May 8, 2015
    Accident analysis software can help authorities identify common causes and make best use of their budgets, as Will Baron explains. More than 1.2 million people die on the world’s roads each year and according to the World Health Organisation, half of these are pedestrians and vulnerable road users (those whose vehicle does not have a protective shell, such as motorcyclists and cyclists). While much has been done to improve road safety and cut the number of deaths and serious injuries on our roads, a great d
    Read More
  • Southampton to get new vessel monitoring system
    October 11, 2013
    UK ports owner Associated British Ports (ABP) has selected Indra’s iMare vehicle traffic service (VTS) for the monitoring and management of maritime traffic in the port of Southampton, one of the UK’s largest and most important ports, handling over 38 million tonnes of cargo a year.
    Read More

Highlighted Content