Conway under the Medway

May 2012 CCTV, Surveillance & Remote Monitoring, Transport (Industry)

Conway Security Products has supplied their external camera housings to the Medway Tunnel under the River Medway between Strood and Chatham in Kent, England.

The enclosures are Conway’s stainless steel EH4 unit and are being used with two separate sets of cameras which address both regular CCTV surveillance and VAID (Video Automatic Incident Detection).

The housings are being used to protect analogue PTZ cameras from the Bosch MIC series used with VIP-X encoders and IP cameras from Bosch’s Dinion range. They form part of a major overhaul of surveillance, scada and public address and voice alarm (PAVA) systems at the tunnel. The VAID solution is from Belgium-based Traficon.

The Conway housing, which is manufactured to weatherproof level IP66, is usually produced in 304-grade stainless steel but for this project 316 grade has been used to give camera and lens assemblies maximum protection from fumes and other contaminants as well as reducing the risk of corrosion. The specification also meets the requirements of Department for Transport standard BD 78/99.

Chris Newman, MD of Conway Security Products, said: “The goal of everybody involved with the CCTV project has been to optimise management views for the tunnel operators so they can keep traffic flowing, respond to incidents in a timely, informed manner and safeguard drivers. All of Conway’s units are manufactured in their entirety at the company’s headquarters in Buckinghamshire, England. This made it possible to provide a tailor-made solution including dedicated bracketry within short lead times, which was a major benefit for the integrator, Ematics. The design of our mounting bracket enabled Ematics to minimise camera vibration and also optimised cable management options for their operatives who are working in confined spaces with a graduated luminaire system.”

The combination of EH4/ss housing in non-standard steel with special mounts designed by Conway has become a widely used solution in VAID tunnel management systems. Other tunnel projects adopting this approach include the £260m New Tyne Crossing in the northeast of England, the Hatfield Tunnel in Hertfordshire, the £600m Dublin Port Tunnel and a mountain tunnel in east-central China. The Conway EH4 excels in coastal and river environments where ingress of water and salt are a threat.

The Medway Tunnel was the first immersed tube tunnel to be built in England. It is twin-bore and therefore avoids contra-flow, which has been outlawed by the EC. Construction work was started in 1992 and the tunnel was opened by the Princess Royal in 1996. The systems overhaul described here has been performed by Vital Services Group reporting to Medway Council’s project manager, Serco.

For more information contact Conway Security Products, +44 1494 461373,,

Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Camera Selection Guide 2019
September 2019 , CCTV, Surveillance & Remote Monitoring

The era of smart surveillance
September 2019, Forbatt SA , CCTV, Surveillance & Remote Monitoring, Products
Professionals in the surveillance industry know CCTV is not what it used to be. Smart functions on cameras are no longer nice to haves, they have become a necessity.

Improved security for Diamond Trust Bank in Tanzania
September 2019, Hikvision South Africa , CCTV, Surveillance & Remote Monitoring, Financial (Industry)
Diamond Trust Bank in Tanzania installed over 1000 Hikvision EasyIP 3.0 cameras in a project to replace its analogue infrastructure and centralise its surveillance security.

Intelligent analytics and the brains to match
September 2019, Bosch Building Technologies , CCTV, Surveillance & Remote Monitoring, Integrated Solutions
What if the brains behind our security cameras could be trained to improve their cognitive ability to pay attention, learn, and problem-solve according to specific rules and situations?

AI-powered autonomous Drone-in-a-Box
September 2019 , CCTV, Surveillance & Remote Monitoring, Integrated Solutions
Organisations in the mining, energy and industrial, oil and gas, ports and terminals sectors can optimise security and business operations, whilst reducing risks and operational costs

Distributed architecture lowers TCO, increases scalability
September 2019, Technews Publishing , CCTV, Surveillance & Remote Monitoring, Transport (Industry)
Faced with a number of security challenges and planned future expansion, a major airport decided it was time to implement a scalable security surveillance solution.

Cybersecurity for video surveillance systems
September 2019 , Cyber Security, CCTV, Surveillance & Remote Monitoring
Video surveillance systems are increasingly accessible over any IP network, which has led to the rise of potential cyberattack.

A platform approach to innovation and value
September 2019, Technews Publishing , Editor's Choice, CCTV, Surveillance & Remote Monitoring, Integrated Solutions, IT infrastructure
Moving to the platform model of doing business holds tremendous advantages for end users and smaller developers, but also for the whole technology supply chain.

Back to manufacturer uniformity?
September 2019, Dallmeier Electronic Southern Africa , CCTV, Surveillance & Remote Monitoring
Decision makers often have to choose between an all-inclusive, complete solution from one manufacturer and the products and services of several different providers.

Open does not always mean easy integration
September 2019, VERACITECH, Technews Publishing , Editor's Choice, CCTV, Surveillance & Remote Monitoring, Integrated Solutions
Customers who opt for best-of-breed solutions will have to rely on their integrators to develop customised integrated solutions for them.