Elizabeth Line

The date for the initial partial opening (not out to Heathrow etc) hasn’t been announced yet but is anticipated before the end of June. It won’t be fully open until 2023.

Just out of curiosity I checked the other day.
https://www.crossrail.co.uk/news/articles/crossrail-project-update

"In the first half of the year" to run through the London tunnels (isolated from the far ends and excluding Bond Street), but time is running out. There is a big test going on this weekend of the kind of service level they'd want to launch the next phase. Even when this starts it might not run a full set of hours; one suggestion has been 06:00-22:30 Monday to Saturday.

Signs are being uncovered at stations and new maps put in trains in other lines so that is encouraging.

I haven't seen a definate date through my sources either....

By the way to be pedantic it is a train line which runs in tunnels through the centre of the city, not an Underground (tube) line.

It may look like a tube and work like a tube but not a tube..... fwiw

They could call it an S-Bahn, or maybe an RER. Wait, those names are already taken.

It is a National Rail service in the same way that the Overground is but TfL like to hide this, even it seems from their own staff.

24 May has just been announced.

The launch service will be 06:30-23:00 Monday to Saturday at a 5 minute interval. At 12 per hour this is a half-service roughly. Bond Street opening still tba.

Marco just beat me to it!

A link to a map of the line.

Here's a link to a story about it from a trade publication:-

https://railuk.com/rail-news/elizabeth-line-to-open-on-24-may-2022/

Note that the link in post above mine is what the finished product will look like.

The map in my link shows the platforms for changing.

Initially it will only run from Paddington to Abbey Wood. TfL passengers from Heathrow (to be rebranded as Elizabeth) will need to change.

This is, of course, as long as everything goes as smoothly as it has done.... and Bond Street to be nonstopped until Autumn.

It will also help access to the Bakerloo Line at Paddington where step free access will become available via the connecting corridor and the Elizabeth Line lifts. This will just leave the Praed Street District/Circle Line platforms without (although one of these is level using an escalator).