Zonegreen are by far the market leader in the provision of rail depot personnel safety, specialising in the delivery of intelligent technologies to offer protection from dangerous environments in a safe and efficient manner.
An unrivalled reputation for quality, safety and reliability has been built by the Sheffield based safety specialists. The team of expert engineers at Zonegreen have achieved this reputation by developing an impressive range of intelligent technologies to offer safety related products and innovative planning of train maintenance operations. Continued research and development projects have ensured that Zonegreen longevity and reputation as a global leader in depot safety systems.
Whilst the companies enduring success is predominantly credited to its Depot Personnel Protection System (DPPSTM), the firm has also brought a successful range of complimentary products to market, including interlocking solutions, Points Converters, railway maintenance planning applications and out-of-gauge warning systems. These systems are installed worldwide and can be used in sectors as diverse as transport, petrochemicals and aerospace.
The Depot Personnel Protection System, Zonegreen’s flagship system, that is specialised and designed to ensure the safe and controlled movement of rail vehicles into and out of depots, so that maintenance operations can be conducted without endangering staff or the depot infrastructure, has recently undergone a complete overhaul. A wealth of additional features have been added to this latest version of DPPSTM, which has been under development for six years and cost many thousands of pounds to bring to market. Zonegreen’s SMART DPPS™ is highly advanced, state-of-the-art and incorporates intelligent, distributed communication technology, as well as electronic personnel datakeys to uniquely identify staff working in different safety zones. The Zonegreen’s SMART DPPS™ allows the user to:
Additionally, Zonegreen depot manager software provides an overview of the status of the DPPS™ and personnel logged on.
The Zonegreen Points Converter allows the automation and remote operation of manual hand point switches and rail road crossings, increasing railway depot and workshop safety. Benefits of powering your manual points
The Zonegreen Points Converter system comprises two parts:
The planning of train maintenance operations is still commonly conducted on whiteboards located in operation control rooms, detailing which train units require servicing, maintenance tasks, as well as expected arrival and departure times. These are updated manually either in a tabular form or on top of a graphical layout representing a bird’s eye view of the depot. Zonegreen’s operator planning suite, as a multi-user, web-based graphical task planning application, is a cost-effective replacement of the whiteboard. It consists of two main views: a graphical layout representing the depot on which users can position trains and create and assign maintenance tasks, and a tabular layout to plan trains’ scheduled arrivals and departures. The train maintenance function of the depot manager allows staff to:
The concept of interlocking has been applied to create increasingly sophisticated systems with the potential to prevent personal injury or costly damage. Our engineers have developed highly sophisticated interlocking systems in train depots that prevent unauthorised movements of trains, thus protecting injury or death to personnel and damage to other trains and equipment in the depot. Additionally, we manufacture internal interlocking systems that prevent danger when personnel try to circumvent safety measures. This, in turn, reduces the risk of damage to equipment. Zonegreen has developed a safe system of work that absolutely prevents access to high level access platforms by means of a fully guarded stairway and interlocked gate that can only be opened with a key that is released from a control panel when the OLE is locked and earthed. The sequence of unlocking and removing keys that, in turn, allow other keys to be released, ensures prohibition of access to areas unless they are safely isolated and earthed. This interlocking system is vastly superior to a ‘permit to work’ system that is only reliable provided that everyone in the loop strictly obeys the rules. It is also possible to interlock third party equipment.
Zonegreen offers a range of safety-related equipment for depots, including but not limited to:
Zonegreen is now able to undertake additional servicing maintenance and installation works at rail and tram maintenance facilities (IRSE installers) in addition to its normal servicing of depot personnel protection and interlocking systems. Zonegreen now offers the following:
Sir John Brown Building, Davy Industrial Park, Prince of Wales Road, Sheffield, S9 4EX
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