UK’s National Highways has appointed suppliers to its £495m ($679m) Specialist Professional and Technical Service 3 (SPaTS3) Framework.

This initiative is set to deliver a range of expert support services across 26 specialist workstreams, enhancing the UK’s road transport infrastructure over a six-year period.

National Highways’ SPaTS3 Framework marks the latest phase in the organisation’s commitment to maintaining and improving the UK’s road network.

The companies – AtkinsRéalis Jacobs Joint Venture, Ove Arup & Partners, Amey, Arcadis, Costain, and WSP in collaboration with Mott MacDonald – will provide technical consultancy, engineering advice, research, and innovation services related to road transport.

The services under the framework will encompass geotechnical engineering, asset operation, maintenance, assurance, performance, design standards manuals and departures, environmental, highways structures, sustainability, and transport engineering services.

The previous framework, SPaTS2, facilitated specialist advice and support through the Second Road Investment Strategy.

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Mott MacDonald and WSP have delivering key services since 2006, including contributions to National Highways’ Net Zero Plan.

Mott MacDonald is set to continue its collaboration with WSP under the new framework.

Mott MacDonald UK & Europe managing director for transport and mobility solutions Graeme Smith added: “Our longstanding relationship with National Highways has delivered multiple benefits to UK road users. Our appointment to SPaTS3 reflects the depth of expertise and technical leadership we bring and builds on the strength of our partnership with WSP.

“We’re excited to help shape the future of the UK’s road infrastructure – delivering innovation, resilience and value for the travelling public.” 

Costain, along with its extended supply chain, will offer a variety of specialist technical engineering advice services, covering areas such as engineering, electric vehicle infrastructure, health, safety, and the environment.

Costain Roads sector director Ann-Marie Morrison said: “This appointment is testament to our strong relationship with National Highways and a recognition of Costain as a trusted advisor with deep in-house engineering capabilities.

“Together, we’ll help create a more resilient road network for the UK that connects businesses and communities, drives economic prosperity, improves people’s lives and leaves behind a positive environmental legacy.”

Last month, National Highways announced a sustainable highway construction trial by Kier and TerrAffix on the A417 Missing Link scheme in Gloucestershire, England.