Four Square Metal Ltd Unit 13 , 193 Garth Road Morden SM4 4LZ foursquaremetal.co.uk T. 020 8335 4000 F. 020 8335 0900 Cert Ref 3787 ISO 9001 20943 Recently, both Network Rail and TfL have been increasing the platform lengths at some stations. This is being undertaken as a result of the increasing train lengths to accommodate for the growing number of peak time passengers. Although not always a straightforward process for overground stations, underground stations require an entirely different approach. In this case, the answer is clearly not to extend the platform, but to allow for the front of the train to stop inside the tunnel. Consequently, new trains are now being built without passenger access doors adjacent to the front of the train, requiring passengers to enter and exit

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