CASE STUDY

Improving visibility beneath Wales’ transport network

How Transport for Wales is enabling safer, more informed delivery of transport upgrades with NUAR

Transport for Wales is leading a major programme to modernise transport across the region, including the South Wales Metro and expanded active travel schemes. Delivering these projects requires careful management of buried utilities in a complex and historic environment. This case study highlights how the National Underground Asset Register (NUAR) is helping teams better understand underground constraints, reduce risk and deliver infrastructure projects more efficiently and with increased assurance.

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Challenge

Transport for Wales is undertaking a major transformation of transport services across South‑East Wales, centred on the South Wales Metro and supported by wider improvements to buses and active travel. Delivering this programme requires extensive construction work in a rail network shaped by decades of legacy infrastructure, where uncertainty around buried utilities presents safety, cost and programme risks.

Solution

The introduction of the National Underground Asset Register (NUAR) has given Transport for Wales a more reliable way to understand what lies beneath its projects.

Result

By providing fast, secure access to a single map showing underground pipes and cables from multiple utility owners, NUAR replaces time‑consuming manual searches with a clear, shared view of underground assets.

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