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Tube trains every 100 seconds with next Jubilee Line upgrade

Transport for London (TfL) has signed off a further upgrade of the Jubilee Line which will increase Tube train frequency during peak hours to 36 trains per hour (tph), or one every 100 seconds.

Currently the line’s maximum capacity is 30 tph.

The £32M project was signed off by TfL’s finance and policy committee today.

The concept design will be finished by January 2016, with the project opening in stages and being fully completed by 2019.

The work will overhaul current infrastructure, such as stabling and train maintenance facilities, power and ventilation assets. Replacement fans along the tunnels will extract the extra heat that more trains would generate.

The project will mean a 36 tph service that runs for a longer, three-hour peak service – previously it was one-and-a-half hours – between West Hampstead and North Greenwich during the morning and evening.

The Jubilee Line was only recently upgraded so it could accommodate 30 tph at peak times, from 27 tph.

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