Since being established in 1988 we’ve been providing tunnel control and monitoring systems. PDS recognise the challenges of working in this environment where safety and asset operation is paramount. Access is very limited and therefore the requirement to ensure that any system provides high availability with in built redundancy to ensure that assets remain open and above safe operating conditions. Over the past 30 years we have expanded our capability to provide end to end systems through from sensors monitoring operations, network connectivity, outstations and instations, control room operational systems up to tools to help in the proactive management of assets and faults. Further details on our broad range of solutions and previous projects are summarised below with more information within the systems and case studies sections.