---
title: "Optimism Bias - Developing the Evidence Base"
ocid: "ocds-b5fd17-5a0d5280-30e3-4a6b-9bcd-a9f91139d430"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-5a0d5280-30e3-4a6b-9bcd-a9f91139d430"
markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-5a0d5280-30e3-4a6b-9bcd-a9f91139d430.md"
json_url: "https://d3tenders.com/contract/ocds-b5fd17-5a0d5280-30e3-4a6b-9bcd-a9f91139d430.json"
source: "Contracts Finder"
current_stage: "Award"
buyer: "THE DEPARTMENT FOR TRANSPORT"
published: "2019-03-22"
---

# Optimism Bias - Developing the Evidence Base

Buyer: THE DEPARTMENT FOR TRANSPORT  
Current stage: Award  
OCID: ocds-b5fd17-5a0d5280-30e3-4a6b-9bcd-a9f91139d430

[View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-b5fd17-5a0d5280-30e3-4a6b-9bcd-a9f91139d430)  
[Download OCDS JSON](https://d3tenders.com/contract/ocds-b5fd17-5a0d5280-30e3-4a6b-9bcd-a9f91139d430.json)

## Summary

The procurement process titled "Optimism Bias - Developing the Evidence Base" was conducted by The Department for Transport in the industry category of transport systems consultancy services. This project aimed to update outdated evidence for optimism guidance in WebTAG, addressing current cost datasets. The procurement method used was a direct single tender action, and the contract period commenced on 20 March 2019, lasting until 28 June 2019. The awarded contract, valued at £64,000, was announced on 22 March 2019.

This tender presents a significant opportunity for consultancy firms specialising in transport systems analysis and evidence-based research. Businesses well-suited to compete include those with proven experience in data collection and analysis, particularly regarding economic forecasting and cost assessment for transportation projects. Engaging in such contracts can facilitate growth and bolster reputations in the public sector, especially for companies capable of demonstrating innovative solutions to enhance transport systems.

## Notice

The aim of this research is to update the evidence base for the Optimism Guidance in WebTAG. The current guidance has come under scrutiny for being outdated as it fails to capture specific characteristics, complexities, and risk profiles of schemes as well as depending on datasets from 2002. This research project will acquire current cost datasets from various departments and organisations in order to update Optimism Bias uplift values.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Contracts Finder |
| Latest notice | https://www.contractsfinder.service.gov.uk/Notice/22911e09-f4b3-494e-be13-41c49aec88d1 |
| Notice type | Award Notice |
| Procurement type | Standard |
| Procurement category | Not specified |
| Procurement method | Direct |
| Procurement method details | Single tender action (below threshold) |
| Tender suitability | Not specified |
| Awardee scale | Large |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 22 Mar 2019 |
| Submission deadline | 20 Mar 2018 |
| Future notice date | Not specified |
| Award date | 20 Mar 2018 |
| Contract period | 20 Mar 2019 - 28 Jun 2019 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £64,000 |
| Lots value | Not specified |
| Awards value | £64,000 |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Not specified |
| Awards status | Active |
| Contracts status | Not specified |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | THE DEPARTMENT FOR TRANSPORT |
| Locality | LONDON |
| Post town | South West London |
| Postcode | SW1P 4DR |
| Country | England |
| ITL 1 | TLI London |
| ITL 2 | TLI3 Inner London - West |
| ITL 3 | TLI35 Westminster and City of London |
| Local authority | Westminster |
| Electoral ward | Vincent Square |
| Westminster constituency | Cities of London and Westminster |
| Delivery location | Not specified |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | OXFORD GLOBAL PROJECTS |

## CPV Codes

### Divisions

- 71 - Architectural, construction, engineering and inspection services

### Codes

- 71311200 - Transport systems consultancy services

## Release History

- 22 Mar 2019 at 11:35 - Award - Award Notice - https://www.contractsfinder.service.gov.uk/Notice/22911e09-f4b3-494e-be13-41c49aec88d1

## Documents

- https://www.contractsfinder.service.gov.uk/Notice/22911e09-f4b3-494e-be13-41c49aec88d1
  22nd March 2019 - Awarded contract notice on Contracts Finder
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/83c8ed4b-4758-4fd6-a178-d8f01c5c311c
  Award Letter

## Provenance

This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-b5fd17-5a0d5280-30e3-4a6b-9bcd-a9f91139d430. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-b5fd17-5a0d5280-30e3-4a6b-9bcd-a9f91139d430.json.