Capability built through experience

Tricon delivered the decommissioning and handback of Eir 4030 at Kingswood Avenue, Citywest, an exchange building that carried telecommunications traffic for the whole of West Dublin. With the building due to be returned to the landlord at the end of Eir's lease, the project required all live telecommunications traffic to be migrated away from the site before the building could be handed back.

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The work involved diverting traffic to other exchanges and to the cloud, then returning the building to the condition it was in when Eir first entered the lease. This combined the technical sensitivity of working within a live telecommunications exchange with the specific requirements of a lease-end handback.

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The defining challenge was that the works were carried out within a live telecommunications exchange that had to keep operating throughout. The building handled telecommunications traffic across West Dublin, so the works could not interrupt service, and every stage had to be planned around keeping the network live.

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The project also carried a specific end condition: under the terms of the lease, the building had to be handed back to the landlord in the same condition it was in when Eir took occupancy. That placed a clear standard on the reinstatement works, on top of the operational demands of decommissioning a working exchange. Coordinating construction activity around live infrastructure, with no room for loss of service, made this a phased and carefully controlled undertaking.

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Given the complexity of working in a live exchange, Tricon phased each shutdown so that telecommunications traffic could remain operational at every stage. Works were sequenced to allow traffic to be diverted, in stages, to other parts of the building, to other exchanges, and to the cloud, so that no part of the network was taken offline before its traffic had been safely rerouted.

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This phased approach was built around a single priority: no loss of service to Eir's customers. Each stage was planned and controlled so that decommissioning and reinstatement works could proceed without compromising the live network, with the sequencing driven by the migration of traffic rather than the pace of construction.

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Tricon carried out the works in a phased, coordinated programme within the live exchange, progressing each shutdown only once the associated traffic had been diverted. The building was decommissioned and reinstated in stages, with the works controlled so that the operational parts of the exchange remained live throughout.

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Alongside the decommissioning, the building was returned to its original lease condition, meeting the handback standard set out in the lease agreement.

The project was handed over successfully, on time and within budget, with the building returned to the landlord in its original lease condition and now available for lease.

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By phasing the shutdowns around the live network and diverting traffic without interruption, Tricon completed the decommissioning and handback without any loss of service to Eir's customers, delivering a technically sensitive project in a live telecommunications environment to programme and budget.

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