The Deep Tube Programme, investigating replacing the trains for the Bakerloo and Piccadilly lines, is looking for trains with better energy conservation and regenerative braking, on which it might be possible to install a form of air conditioning.
Deep Tube Programme, der undersøger erstatninger for togene på Bakerloo og Piccadilly lines, leder efter tog med bedre energibesparelser og regenerativ bremsning, hvori der kan blive muligt at installere en form for aircondition.