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    ContractsResearch on Diverging Diamond Interchanges
    Awarded contract

    Research on Diverging Diamond Interchanges

    Awarded
    £94.5k
    Published 26 Jun 2025

    National Highways is looking for suppliers to provide research services on Diverging Diamond Interchanges (DDIs). The initial phase (Stage 1) aims to assess the safety performance of DDIs compared to traditional junctions, identify potential risks such as Wrong Way Driving, review international stan

    🇬🇧United KingdomPublished 26 Jun 2025· 1 year agoviaContracts Finder
    Awarded
    £94.5k
    Published 26 Jun 2025

    Decision brief

    4 fields
    • Contract value
      est.£94,497
      Pounds sterling
    • Tender closed
      18 Jun 2025
      1 year ago
    • Sector
      Research & Innovation
      Browse related listings
    • Location
      🇬🇧United Kingdom

    Suppliers

    1 supplier
    • WU
      WSP UK LIMITED
    Lead contractor

    Lifecycle

    Awarded

    Contract awarded. Originally published 1 year ago.

    26 Jun 2025Today18 Jun 2025

    Brief

    National Highways is looking for suppliers to provide research services on Diverging Diamond Interchanges (DDIs). The initial phase (Stage 1) aims to assess the safety performance of DDIs compared to traditional junctions, identify potential risks such as Wrong Way Driving, review international standards for relevance to the UK, and analyze the current Design Manual for Roads and Bridges (DMRB) to determine necessary updates for DDIs. If further funding is secured, a second phase (Stage 2) will explore retrofitting DDIs at existing junctions, investigate risk mitigation strategies, measure environmental and economic benefits, and provide recommendations for updating the DMRB standards. The total value of this contract is approximately £94,496.76, and the deadline for submissions is June 18, 2025. For more details, visit the [Contracts Finder](https://www.contractsfinder.service.gov.uk/notice/c72b3a73-f799-4e4e-a9be-322bee88c1ac).

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    Take action
    View on sourceContracts Finder

    Award notice and full record on the publisher's site

    Publisher
    UK Cabinet Office
    Licence
    OGL v3.0
    Source
    contractsfinder.service.gov.uk
    Record ID
    c72b3a73-f799-4e4e-a9be-322bee88c1ac

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    Buyer
    NATIONAL HIGHWAYS LIMITED
    Sector
    Research & Innovation