The Research on Delay Propagation of Urban Rail Transit Operation under Sudden Failure

Figure 5

Number of stations for network with multiple delay propagation. (a) 5 stations. (b) 10 stations. (c) 15 stations. “−”: the number of stations that may be delayed (S); “”: the number of delayed stations (I); “+”: the number of stations where the delay has disappeared (R).

(a)

(b)

(c)