Tender Details

Country: United Kingdom
Summary: Adhesion Prediction Tool Replacement
GBT Ref No: 119303383
Deadline: 28 May 2025
Financier: Self Financed
Purchaser Ownership: Government
Tender Value: Refer Document
Notice Type: Tender
Document Ref. No.:
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Description:
This notice is issued by TfL to notify the market of our intention to carry out market engagement and a potential future tender which may commence in March 2026. The total contract value is unknown at this time we are embark on this market engagement process. This process does not commit TfL or potential suppliers to any spend. The specification has yet to be developed, however the findings from this market engagement process will inform the final specification. Scope: To transport the high number of passengers required in a modern city constrained by legacy tunnels and platform lengths needs more frequent trains which in turn requires higher acceleration and brake rates. However, to prevent wheel spin under acceleration or wheel slide under braking requires a minimum level of adhesion (friction) at the wheel rail interface. Adhesion Controllers Condition Assessment Tool (ACCAT) has been employed over the last 20+ years on the Central line and approaching 6 years on the Sub Surface Railway. Using the underlying logic, the ACCAT processes weather data provided by a 3rd party and several other inputs to predict the available rail adhesion and outputs recommendations in the following three categories: 1. The operation of railhead treatment trains, thus improving the level of adhesion available to trains. 2. Brake rate reduction, thus reducing the adhesion required to stop the train. It also recommends when an imposed brake rate reduction can be removed 3. Severe weather warnings...
Documents:

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Adhesion Prediction Tool Replacement - Unitedkingdom Tender

The TRANSPORT FOR LONDON, a Government sector organization in United Kingdom, has announced a new tender for Adhesion Prediction Tool Replacement. This tender is published on UnitedkingdomTenders under GBT Ref No: 119303383 and is categorized as a Tender. Interested and eligible suppliers are invited to participate by reviewing the tender documents and submitting their bids before the deadline on 2025-05-28.

The estimated tender value is Refer Document, and full details, including technical specifications and submission requirements, are provided in the official tender documents. Ensure all submissions meet the criteria outlined to be considered for evaluation.