Under　the　sudden　interruption　of　the　metro,　it　is　significant　to　dispatch　emergency　bridging　buses　to　evacuate　stranded　passengers　to　improve　linkage　management　and　service　reliability.　Aiming　at　the　problem　of　emergency　bridging　bus　scheduling,　considering　the　remaining　capacity　of　conventional　buses,　passenger　tolerance,　and　site　convenience,　a　flexible　combined　emergency　bridging　bus　scheduling　model　is　constructed　based　on　the　constraints　of　vehicle　capacity,　dispatching　capacity,　and　maximum　evacuation　times　of　emergency　bridging　bus,　aiming　at　minimizing　the　maximum　evacuation　time　and　passenger　delay.　The　improved　Harris　hawk　algorithm　is　used　to　solve　the　model,　and　the　evacuation　plan　of　the　demand-responsive　and　station-station　bridging　lines　is　obtained.　The　maximum　evacuation　time　is　41　min,　and　the　average　delay　of　stranded　passengers　is　19　min.　The　results　show　that　the　maximum　evacuation　time　is　10%　and　27%　less　than　the　fixed　combined　and　single　scheduling.　The　average　delay　is　16%　and　42%　less　than　the　fixed　combination　and　traditional　single　scheduling.　The　sensitivity　analysis　of　the　influencing　factors　of　emergency　bridging　bus　scheduling　is　conducted.　The　results　show　that　the　flexible　combined　emergency　bridging　bus　scheduling　model　constructed　in　this　paper　can　improve　evacuation　efficiency　and　reduce　passenger　travel　delays.　©　2024　The　Authors.　IET　Intelligent　Transport　Systems　published　by　John　Wiley　&　Sons　Ltd　on　behalf　of　The　Institution　of　Engineering　and　Technology.