Major upgrade work is being carried out at Whitechapel station in order to prepare the site to become a new modern transport hub with the arrival of the Crossrail service. 

When Crossrail is fully implemented by 2018, some 24 trains per hour are expected to carry as many as 1,500 passengers between Paddington and Whitechapel. 

Work that has already taken place at Whitechapel includes a start on tunnelling and rebuilding, however none of this ha disrupted services so far. 

Now, some service suspensions will be required on London Overground services to install a new concourse directly above the tracks. 

Programme director for Crossrail Simon Wright said the concourse will be the centrepiece of the rebuilt station. 

"The construction of the pedestrian concourse includes the installation of steel sections on which the floor of the concourse will be built," he commented, adding: "These can only be installed when London Overground services are not running."