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A new rail milling train and two multi-purpose engineering trains with bespoke machinery attachments will be delivered to London ahead of the Elizabeth line opening in December. While London sleeps, these trains and their workers will be wide awake using the latest in railway technology to deliver the high levels of monitoring and maintenance that Transport for London (TfL) will require for the Elizabeth line. Investing in this cutting-edge technology will reduce maintenance costs for the brand-new railway infrastructure, providing savings for many years to come.
Linsinger MG31 – Elizabeth line maintenance train
The 48m-long rail milling train is the first of its kind to be used in the UK rail industry. It is able to scan the rails using electromagnetic crack detection, looking for any defects. If it identifies any issues with the track, it can mill the surface of the rail to remove defects and cracks, reducing wear on the new Elizabeth line train wheels and the tracks. Metal chips will be collected in a container on the train and later recycled as high quality scrap metal.
The 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. Using this state-of-the-art technology will reduce the need for major track maintenance, meaning less disruption for customers. Manufactured Linsinger, it has two drivers’ cabs and space for up to four members of staff as well as a welfare facility.
The two multi-purpose engineering trains, supplied by Plasser UK, have been manufactured by ROBEL Bahnbaumaschinen. They can be configured to be between 40 and 80m-long, depending on the task, with a number of modular attachments. The trains’ unique gantry system provides the capability to change a five tonne, 35m switch rail within short overnight engineering hours. The trains can also be configured for different purposes using cranes, a scissor lift for working on overhead line equipment or cabling, and a water tank and jet for drainage clearance and tunnel cleaning.
These trains will also be the main way to transport new rail, platform screen doors, station transformers and more, through the central section of the Elizabeth line once stations are complete.
All three maintenance trains are fitted with the Elizabeth line’s new central section signalling system, enabling them to move around the railway while passenger trains are still running to maximise the time spent working during the night.
Howard Smith, Operations Director for the Elizabeth line, said: “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. Most maintenance will be done overnight, out of sight of customers, but these great machines, with the help of our fully-trained staff, will also be able to act in case of any emergency repairs needed to keep the Elizabeth line running.”
The three trains are designed specifically for the Elizabeth line and are gauged to fit inside the new tunnels and on the central section of the route. The operation and maintenance of the trains will be carried out by GB Rail freight Limited (GBRf). TfL has awarded this contract for a period of five years.
Mark Wyborn, GBRf General Manager, 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.”
The Elizabeth line project is jointly sponsored by the Department for Transport and TfL with additional support provided by London’s business community.
This article first appeared on www.globalrailwayreview.com
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