| Regression coefficient | Standard error | t value | p value |
Intercept | 6.609 × 10−15 | 2.676 × 10−2 | 0 | 1 |
Number of through service train lines | 9.174 × 10−2 | 4.255 × 10−2 | 2.156 | 3.1298 × 10−2 |
Length of through service sections | 0.1210 | 4.446 × 10−2 | 2.722 | 6.587 × 10−3 |
Transportation capacity for each train during peak hours | 0.1449 | 4.284 × 10−2 | 3.382 | 7.43 × 10−4 |
Number of stairs and escalators in terminal stations | 6.732 × 10−2 | 3.989 × 10−2 | 1.686 | 9.1761 × 10−2 |
Number of trains according to type | −6.319 × 10−2 | 3.242 × 10−2 | −1.989 | 5.1538 × 10−2 |
Number of connecting operation stations | −0.1336 | 7.039 × 10−2 | −1.897 | 5.8024 × 10−2 |
Length of lines with connecting operation | 0.2755 | 7.618 × 10−2 | 3.617 | 3.11 × 10−4 |