April 2023
Rail safety specialists, Zonegreen, are extending the protection offered to staff at a West Sussex depot where there is a growing need to undertake work outside.
The Sheffield-based firm has installed warning beacons on a busy walkway crossing at the Three Bridges facility near Crawley, to alert workers to imminent train movements.
Post-mounted beacons have been erected outside the wheel lathe building and main shed and are integrated with Zonegreenโs flagship Depot Personnel Protection System (DPPS), which was implemented during the depotโs construction in 2017. They illuminate when the tracks are unprotected to warn staff who may be passing that moving vehicles are expected.
Christian Fletcher, Zonegreenโs Head of Engineering, said: โDepot operator, Siemens, asked us to install the beacons to reflect the growing amount of work taking place on sidings and stabling roads at Three Bridges. These areas were never intended to be used for maintenance, so they typically carry little or no protection, yet due to increased demand and finite internal space, working practises are changing.

โWhen sidings roads are being used for maintenance, staff usually have to cross multiple tracks to reach the location, creating a whole new set of risks for depots to consider. We welcome the foresight Siemens has shown in implementing additional safety measures and I am sure weโll see many other facilities following suit, as throughput expectations increase.โ
The Office of Road and Rail reported that 2020/21 saw the highest number of recorded near misses at level crossings for almost 20 years and the picture does not seem to be improving. According to the organisationโs latest Annual Report of Health and Safety on Britianโs Railways, the average amount of accidents at level crossings had worsened by 15.9% by the end of 2022.
Christian concluded: โThe risks posed by crossings continue to be a major concern for the rail industry. When combined with the dangers depot staff already face from high voltage electricity and powerful machinery, it is clear more action needs to be taken to protect those who find themselves working outside.โ
Zonegreenโs latest version of DPPS is the most advanced, thoroughly tested and proven technology on the market โ a product of more than 20 yearsโ research and experience. It protects depot staff by controlling vehicle movements, creating safe zones for workers through the installation of powered derailers, operated by RFID-controlled road end panels.