New technology inspired trains are being tested in Europe before they arrive in London later this year to be used on the Elizabeth line.

The Elizabeth line, which opens in December, will run from Reading and Heathrow and will go across to Shenfield and Abbey Wood.

The two new milling trains, designed to ensure tunnels and tracks can be maintained for a long period, will also operate from a maintenance facility in Plumstead, which is currently under construction.

Engineers believe passengers will endure less major travel disruption thanks to the technology built into the trains.

The new 48 metre long rail milling trains will scan tracks to look for any defects and has the ability to remove cracks by milling the surface.

Transport for London say this milling process “eliminates the problems of sparks, fire and dust created by traditional rail grinding trains, leaving a smoother surface that will provide a quieter, more comfortable ride for passengers”.

Mark Wyborn, general manager of GB Rail freight Limited (GBRf), said: “This is fantastic news for GBRf.

“It is great to continue the hard work on the Elizabeth line knowing that GBRf have contributed to each phase of this huge infrastructure build and will continue to do so when the new railway opens.”

Howard Smith, operations director for the Elizabeth line, added: “Complex monitoring and maintenance will be needed on the new railway and these state-of-the-art vehicles will help us meet those needs.

“The Elizabeth line and its customers will rely on the track and tunnel infrastructure being maintained while they sleep to ensure we can keep London working and growing.”