To solve the problem of the service level decline of the public transport system in emergent events, a rapid algorithm of dynamic holding scheduling adapted to emergencies was put forward based on the scheduling idea of equilibrium headway. A single line bus dynamic scheduling model was established under the emergencies. A mathematical foundation of holding scheduling was established, the headway control strategy at one station was analyzed, and the rapid dynamic holding scheduling strategy was designed, so as to get the optimal algorithm of holding scheduling in the line. The feasibility of t...