1 4 ▁and ▁eventually ▁reaches ▁Song j ia z hu ang ▁and ▁Line ▁ 1 0 ▁again ▁in ▁F eng ta i ▁District ▁south ▁of ▁the ▁city . ▁It ▁takes ▁ 4 9 ▁minutes ▁to ▁cover ▁all ▁the ▁ 2 3 ▁stations . ▁ ▁St ations ▁( N orth ▁to ▁South ) ▁ ● : ▁stop ▁▁ ▲ : ▁some ▁S B ▁PM ▁trains ▁skip ▁▁ ▼ : ▁some ▁N B ▁PM ▁trains ▁skip ▁ ▁Technology ▁Line ▁ 5 ▁is ▁the ▁first ▁sub way ▁line ▁in ▁Be ij ing ▁to ▁have ▁platform ▁screen ▁doors ▁in ▁under ground ▁stations ▁and ▁automatic ▁platform ▁gates ▁in ▁elev ated ▁stations ▁that ▁prevent ▁rid ers ▁from ▁falling ▁onto ▁the ▁tracks . ▁Line ▁ 5 ▁stations ▁also ▁have ▁L CD ▁screens ▁that ▁display ▁the ▁wait ▁times ▁for ▁the ▁next ▁train . ▁Line ▁ 5 ▁trains ▁have ▁digital ▁voice ▁announ c ements ▁( in ▁Mand arin ▁and ▁English ) ▁and ▁L CD ▁passenger ▁information ▁display . ▁ ▁History ▁Const ruction ▁work ▁on ▁Line ▁ 5 ▁got ▁under way ▁in ▁late ▁ 2 0 0 2 ▁and ▁the ▁line ▁opened ▁to ▁the ▁public ▁on ▁October ▁ 7 , ▁ 2 0 0 7 . ▁ ▁Tim eline ▁▁ ▁December ▁ 2 8 , ▁ 2 0 0 2 : ▁Const ruction ▁on ▁Line ▁ 5 ▁began . ▁ ▁March ▁ 2 8 , ▁ 2 0 0 4 : ▁T unn eling ▁started ▁under ne ath ▁Y ong he g ong ▁L ama ▁Temple ▁and ▁He ping li ▁Be ij ie