Work to upgrade trains on the Jubilee line are running behind schedule due to “inaccurate material estimates, shortage of employees and issues with quality”.
You may have noticed longer waits for trains on the Jubilee line in recent months with Transport for London mentioning a “shortage of trains”. That’s due to an ongoing program to refurbish the trains including their wheels.
Unfortunately the manufacturer appears to have issues with product quality. TfL state in their latest report that they are “working closely with the supplier to mitigate the delay.”
A strategic milestone is now due to be missed by 19 days.
It’s one of three main areas of delay for projects in the capital. The others are Silvertown Tunnel and an expanded DLR depot in Beckton for newly constructed trains.
That site saw the construction company enter administration with work stopped. Funding for the overall project has thus increased with TfL seeking other locations to store incoming trains constructed in Spain.