The transition between day and night along with changes in weather conditions  present a challenge for tunnel operators to ensure lighting in road traffic tunnels remain at safe levels for motorists at all times. The lighting control at the tunnel portals is particularly important to ensure drivers do not suffer from “black hole syndrome” whereby…

Dear Customers and Partners, Due to the exceptional situation we all face, I would like to offer some reassurance that Dynoptic Systems and Tunnel Sensors are taking the necessary measures to keep our team safe while we continue to serve our customers. We have business continuity plans in place to ensure our key operations continue…

Road traffic tunnels are inhospitable places, when traffic is flowing they are dangerous environments for anyone working in the tunnel bore. With tunnel atmosphere monitors installed high up on the tunnel wall access to the systems is nearly always restricted to planned closures. All Tunnel Sensors monitors have a comprehensive range of output and communication…

Fresh air flow through tunnels is essential to ensure visibility is maintained and toxic gases levels are kept within acceptable limits. Tunnel ventilation systems will usually include wall or ceiling mounted jet fans. It is necessary to measure the airflow within a tunnel to minimise the use and power consumption of the Jet Fans while…

While modern, fuel efficient vehicles emit significantly less toxic gas (and particulate matter) compared to their predecessors, the need for road tunnel gas monitoring and efficient ventilation control systems are still vitally important to ensure the tunnel atmosphere remains safe. Noxious gases present in road traffic tunnels include Nitrogen Dioxide (NO2) Nitrogen Monoxide (NO) Carbon…

As a result of market feedback requesting a flexible junction box and mains power supply, the team at Tunnel Sensors have developed a Combined Termination Unit, known as the CTU. The CTU is a rugged, wall mounted, fully customisable termination unit for installation alongside compatible Tunnel Sensors monitors, including the VICONOX, AIRFLOW-MKII and CROSSFLOW. A…