AECOM to deliver depot and sidings feasibility study for Transport for London’s Bakerloo Line Upgrade
AECOM was appointed by Transport for London to conduct a feasibility study for depots and sidings needed for the Bakerloo Line Upgrade, supporting replacement of rolling stock first in service in 1972. The study, led by AECOM with Arcadis, will produce a baseline design covering Stonebridge Park Depot, Queen’s Park and London Road sidings.
How this was made

The 30-second read
Why it matters
The article discloses AECOM’s appointment to lead early-stage feasibility and baseline design for depots and sidings needed for the Bakerloo Line Upgrade, supported by Arcadis.
Market read
This is a rail infrastructure advisory appointment, useful for tracking project pipeline, but it lacks deal size or financial guidance.
What to watch
Future risk is execution and approvals for depot and siding baseline design, which could shift costs or timelines before any construction award.
Background
AECOM has been involved in related TfL rail work, including design services for London Underground stations and prior station capacity upgrades.
Market effects
Signals continued consultancy and engineering demand for UK rail infrastructure upgrades, but without financial terms.
Supports London Underground modernization planning, potentially extending project timelines and procurement follow-ons.
Limited, as it is a localized TfL program with no cross-border commercial disclosure.
Counterpoint
Without contract value, scope certainty, or procurement milestones, the appointment may not translate into near-term revenue impact.
Key entities
- companyAECOM
Appointed by TfL to deliver feasibility study and lead multidisciplinary planning for Bakerloo Line Upgrade depots and sidings.
- government_agencyTransport for London (TfL)
Client appointing AECOM for feasibility and planning works for the Bakerloo Line Upgrade.
- companyArcadis
Support partner to AECOM on the feasibility and planning works.


