text:  The city is serviced by the <unk> @-@ 1 and <unk> @-@ 2 which forms the <unk> system , as distinct from the <unk> @-@ 3 which is under the <unk> system that services other parts of Metro Manila . Development of the railway system began in the 1970s under the Marcos administration , making it the first light rail transport in Southeast Asia . These systems are currently undergoing a multibillion @-@ dollar expansion . <unk> Line 1 runs along the length of Taft Avenue ( R @-@ 2 ) and <unk> Avenue ( R @-@ 9 ) , and the <unk> Line 2 runs along <unk> M. <unk> Avenue ( C @-@ 1 ) and Ramon <unk> Boulevard ( R @-@ 6 ) from Santa Cruz , through <unk> City , up to <unk> in <unk> . 
  