This is part of the project shifting the Express Line’s trains to the City Line in order to serve more passengers.
If the interior renovation of the remaining nine carriages of the other three Express Line trains is complete by the end of this year as planned, the four trains will have the capacity to carry an extra 10,500 persons day, for a total of 72,000.
Apart from new seats, the redesigned carriages have more handrails and grab handles.