Regression

coefficient

Standard

error

t value

p value

Intercept

−1.176 × 10−15

1.706 × 10−2

0

1

Length of train lines

0.2802

3.318 × 10−2

8.446

<2 × 10−16

Number of through service train lines

8.866 × 10−2

3.008 × 10−2

2.947

0.00324

Length of through service sections

6.417 × 10−2

3.693 × 10−2

1.738

0.08238

Number of operating trains per hour during peak hours

−0.1209

2.800 × 10−2

−4.317

1.63 × 10−5

Number of transported passengers per hour during peak hours

0.2075

3.622 × 10−2

5.728

1.12 × 10−8

Number of stairs and escalators in terminal stations

−7.447 × 10−2

2.708 × 10−2

−2.750

0.00600

Number of trains according to type

−0.1604

2.778 × 10−2

−5.773

8.65 × 10−9

Number of connecting operation stations

−0.2714

4.819 × 10−2

−5.633

1.95 × 10−8

Length of lines with connecting operation

0.2655

4.922 × 10−2

5.395

7.44 × 10−8