LLPA System Replacement Across 100+ Sites
WILEO successfully delivered a full Long Line Public Address (LLPA) system replacement across more than 100 operational locations for the Public Transport Authority (PTA), ensuring uninterrupted operations for frontline teams and passengers alike.
This large-scale program—delivered in a complex brownfield environment—spanned train and bus stations, depots, feeder stations, and track section cabins, supporting more than 450 active users including customer service officers, control room staff, transit officers, and maintenance teams.
The program began in late 2014 with a comprehensive strategy—market analysis, RFI, and early contractor involvement. By 2015, the Project Definition Plan was approved and the main contractor awarded.
At the heart of the solution was the deployment of a decentralised, networked Vocia system—a significant step forward from the ageing, centralised platform it replaced. The modernised solution provides:
The system was also seamlessly interfaced with train control systems via the Passenger Information Network (PIN) and Emergency Warning and Intercommunication Systems (EWIS), strengthening safety and operational response capabilities.
End-to-End Expertise
WILEO’s contribution extended far beyond project delivery. Our team was engaged early to evaluate the market prior to tender, ensuring the PTA’s requirements were clearly defined and achievable. We then supported the technical evaluation process, giving the PTA confidence in selecting the right solution and supplier.
Once the contract was awarded, WILEO led the configuration, architecture, and integration of the system into the PTA’s operational environment, ensuring a smooth transition and uncompromised reliability.
Smooth Delivery, Strong Results
Despite the complexity of working across more than 100 live operational sites, the cutover was achieved without disruption to services. Early feedback from operational teams highlighted both the superior audio quality and the practical benefits of new system features.
Two senior WILEO consultants led the delivery as Project Manager / Engineering Manager and Project Engineer, collaborating closely with PTA staff. Together, the team ensured seamless transition, effective training, and smooth handover to maintenance teams.
The project was delivered on time and slightly under budget, a testament to WILEO’s agile approach and focus on delivering real value. In recognition of its success, the delivery team was formally awarded by the PTA for excellence in project delivery.
Sustained Impact
While the new system was already operational, WILEO continued supporting the PTA with the decommissioning of the old infrastructure, fine-tuning of system performance, and staff training through to the end of 2016. This ensured not only a successful launch but also long-term operational confidence.
The project not only modernised a critical communications system but also set a new standard for reliability and flexibility across the network—leaving the PTA equipped for the future. Interested in learning more about how WILEO delivers complex infrastructure projects with impact?
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