A　large　amount　of　heat　and　piston　wind　is　generated　during　the　train　braking.　The　piston　wind　will　be　heated　by　the　braking　energy　simultaneously,　which　has　a　significant　influence　on　the　air　temperature　and　the　flow　field　of　subway　stations　and　tunnels.　The　study　conducted　a　train-induced　experiment　in　Tai　yuanjie　(TYJ)　station,　and　the　air　temperature　and　velocity　data　were　recorded.　Meanwhile,　a　train　induced　numerical　simulation　was　carried　out　for　full-scaled　model　based　on　dynamic　mesh　and　the　theory　of　braking　energy.　The　experimental　data　was　compared　with　the　simulation　results　to　analyze　the　unsteady　air　temperature　field　and　unsteady　air　flow　field　of　the　actual　station.　The　results　indicate　that　the　braking　energy　of　the　train　cannot　be　ignored　in　the　simulation　of　the　subway　station　in　winter.　However,　the　utilization　of　the　braking　energy　is　inefficient.　To　improve　the　utilization　of　the　braking　energy,　this　paper　put　forward　one　passive　approach　and　three　active　approaches.　The　simulation　results　indicated　that　the　active　approaches　could　improve　the　heat　utilization　of　braking　energy　significantly.　Ventilation　system　could　transport　part　of　the　piston　wind　to　the　station　by　fans　so　that　it　can　prevent　cold　air　entering　the　station.　(C)　2016　Elsevier　Ltd.　All　rights　reserved.