Impact of a New Metro Line: Analysis of Metro Passenger Flow and Travel Time Based on Smart Card Data

Figure 10

The mean and the SD of commuting travel time before and after Line 4 opening.

(a) Group 1, before Line 4 opening

(b) Group 1, after Line 4 opening

(c) Group 2, before Line 4 opening

(d) Group 2, after Line 4 opening

(e) Group 3, before Line 4 opening

(f) Group 3, after Line 4 opening