 Sixteen cars received a new seating arrangement that included modified handholds and seat positions, including some longitudinal seating.These cars, as well as other cars being used as control cars in the experiment, received on-board cameras in order for planners to observe passenger movements.Around August 2008, Metrorail tested new overhead handles of different styles on 3034, 3035, 3094, 3095 as well as some 1000-series cars to gauge public opinion.