T0695 Diverging Diamond Interchanges - update to DMRB standard CD 122
Reference ocds-b5fd17-b4c136e0-b340-4d19-a00b-ee1b2e94737e · National Highways
Awarded to WSP UK Limited for £94,497.
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Amounts and figures
Description
National Highways (the Client) is seeking the provision of services to undertake research into Diverging Diamond Interchanges (DDI). STAGE 1 SCOPE: Overall, the aims of this task are to: 1. Measure the safety performance of DDIs to clearly understand how or if they are safer than existing junction types; 2. Examine potential risks and hazards such as Wrong Way Driving; 3. Review international standards and determine relevance to UK; and 4. Review the DMRB to understand how requirements and advice would need to change to encompass Diverging Diamond Interchanges. The award of this work package is initially for Stage 1 only (see background). Subject to further funding, a STAGE 2 FEASIBILITY task would be undertaken in the next financial year: - Identify a location where the layout can be retrofitted and modelled to existing infrastructure such as at an existing dumbbell roundabout at a grade separated junction and then examine scalability across the network; - Investigate how any new risks such as Wrong Way Driving or failure of traffic signals can be reduced or removed; - Measure the environmental and economic benefits such as land take reduction and carbon saving…
Awards
| Awarded to | Amount | Date |
|---|---|---|
| WSP UK Limited | £94,497 | 25 June 2025 |
Official publications
| Medium | Reference | Date |
|---|---|---|
| FTS | c72b3a73-f799-4e4e-a9be-322bee88c1ac-851538 | 26 June 2025 |
| Contracts Finder | c72b3a73-f799-4e4e-a9be-322bee88c1ac-851538 | 26 June 2025 |
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Frequently asked questions
- What is the deadline to bid for this tender?
- The submission deadline is 18 June 2025, 19:00. Check the official source, as dates can be modified.
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- The estimated value published by the buyer is £94,497.
- Who is the buyer of this tender?
- The contracting authority is National Highways (United Kingdom).
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