Zonegreen: Celebrating the 20th Anniversary of Modern Depot Protection

Zonegreen’s team of expert engineers are dedicated to providing cutting-edge rail depot systems. By developing long-term working relationships with its clients, and through continuous research and development, it is able to ensure its products consistently meet the demands of a rapidly changing industry. The pioneering introduction of electronic personal datakeys with varying authorisation levels, which replaced the physical padlock found in traditional depot protection, saw a marked step forward in the operability of the system. The datakeys are used to operate DPPSTM™ and identify personnel working in different safety zones. Staff log on to the road end control panel (REP) when they begin work, which prevents the derailer being lowered, therefore providing them with physical protection from train movements.

The launch of the New Generation SMART DPPSTM™ in 2015 saw the first complete overhaul of the system. Six years of research and development, along with the investment of many hundreds of thousands of pounds, resulted in a system that offers increased intuitive functionality, remote configuration and a graphical user interface that is programmable in any language. The accompanying Depot Manager software offers a complete overview of a depot; it provides key information to make operations quicker and easier to implement, offers comprehensive traceability and makes it possible for users to control train movements remotely, giving greater flexibility.

Zonegreen Powered Derailer

The Future

In the last 20 years, companies including Alstom, Siemens, Hitachi, Bombardier and Network Rail, to name but a few, have chosen Zonegreen’s DPPS™ to protect their workforces throughout the UK and globally.

During Railtex 2019, Zonegreen will be demonstrating the results of its most recent research and development project. The centrepiece of its display will comprise a working road end panel, and will offer verbal warnings of vehicle movements, making it easier to identify areas of risk.