MSQ for Brake Capture or Filtration Technologies Trial

Transport for London (TfL) is seeking to engage with the market to identify brake capture or filtration technologies that could be trialled on four London bus types: Electric single-decker, Electric double-decker, Diesel single-decker, Diesel double-decker

This Market Sounding Questionnaire (MSQ) is part of a wider innovation project being developed for the EIT Urban Mobility Strategic Innovation Open Call (2026-2028).

We are looking for organisations with brake filtration solutions that could be deployed on buses and tested in real-world conditions. This MSQ aims to:

Understand the range of brake filtration technologies available or in development, with a focus on solutions at Technology Readiness Level (TRL) 6 or above.

Gauge supplier interest and readiness to participate in a trial.

Inform the selection of technology partners for the upcoming trial.

Feedback is requested in relation to Problem Statements and further information that can be found in the document attached in Section 5.

Your input is important as it will allow us to understand how we might go forward from here in terms of a potential future procurement process or trial.

Please complete the questionnaire either online in the MS form linked under Section 5 Attachments, or you can email Airquality@tfl.gov.uk to find a paper copy. If you have any issues submitting via MS Forms please email Airquality@tfl.gov.uk.

For your feedback to be taken into account, your completed MSQ must be received by 1pm GMT on the 28th of November 2025.

All timelines provided are subject to change at TfL's discretion.