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Table 1 Summary of parameter description

From: Exploring injury severity of pedestrian-vehicle crashes at intersections: unbalanced panel mixed ordered probit model

Parameter Category Count (proportion)
(i) Dependent variables  
Year 2015 503 (25.2%)
2016 520 (26.1%)
2017 517 (25.9%)
2018 455 (22.8%)
Injury severity 1-No injuries 68 (3.4%)
2-Slight injury 1375 (68.9%)
3-Severe injury 513 (25.7%)
4-Fatality 39 (2.0%)
(ii) Categorical variables  
Pedestrian age 0-Less than 15 years old 147 (7.4%)
1–15- 65 years old 1245 (62.4%)
2-More than 65 years old 603 (30.2%)
Driver circumstances 1-Delayed detection of danger 86 (4.3%)
2-Disregarding the advantage of passing 146 (7.3%)
3-Disregarding the light sign 77 (3.9%)
4-Disregarding the light sign—pedestrian 128 (6.4%)
5-Driving at an insufficient distance 5 (0.2%)
6-Improper detour 9 (0.5%)
7-Improper inclusion in traffic 25 (1.2%)
8-Improper driving(overtaking/reversing/passing/speed/turning) 281 (14.1%)
9-Negligent handling of the vehicle 16 (0.8%)
10-Non-use of a marked pedestrian crossing 67 (3.4%)
11-Other driver mistake 720 (36.1%)
12-Other pedestrian mistake 97 (4.9%)
13-Speed inappropriate for conditions 337 (16.9%)
14-The unexpected appearance of danger on the road 1 (0.01%)
Vehicle type 1-Bicycle 28 (1.4%)
2-Personal automobile 1428 (71.6%)
3-Bus/truck/tram 132 (6.6%)
4-Motorcycle 49 (2.5%)
0-Unknown 358 (17.9%)
Intersection type 0-Y-intersection 118 (5.9%)
1-T-intersection 919 (46.1%)
2-Four-intersection 907 (45.5%)
3-Roundabout 51 (2.5%)
Road conditions 0-Dry 1506 (75.5%)
1-Wet (including snow) 482 (24.2%)
2-Other 7 (0.3%)
Speed limit 0 < 50 km/h 168 (8.4%)
1 = 50 km/h 1755 (88.0%)
2 > 50 km/h 72 (3.6%)
Visibility conditions 0-Day 1368 (68.6%)
1-Dawn/twilight 49 (2.4%)
2-Night 578 (29.0%)
Public lighting 0-In operation 923 (46.2%)
1-Out of order 1037 (51.9%)
2-No lighting 35 (1.8%)
Weather conditions 1-Clear(brightly, cloudy) 1663 (83.3%)
2-Rain/snow 311 (15.6%)
3-Fog 21 (1.1%)
Condition of vertical signalization 0-Good 1947 (97.6%)
1-Bad/damaged 6 (0.3%)
2-No vertical signalization 42 (2.1%)
Condition of horizontal signalization 0-Good 1936 (97.0%)
1-Bad/deficient 13 (0.7%)
2-No horizontal signalization 46 (2.3%)
  Mean SD Min Max
(iii) Continuous variables     
Total vehicle Total vehicles involved 1.02 0.16 1 4
NoPT No. of participants in total 2.13 0.46 1 7
NoPD No. of participants dead 0.02 0.14 0 2
NoPS No. of participants slightly injured 0.26 0.45 0 2
NoPI No. of participants severely injured 0.74 0.53 0 4
NoPN No. of participants no injuries 1.10 0.45 0 6
(iv) Indicator variables     
Day 1 = Weekday, 0 = weekend 0.83   0 1
Gender 1 = Male, 0 = Female 0.37   0 1
Alcohol 1 = Yes, 0 = No 0.03   0 1
Environment 1 = Environment arranged, 0 = poorly or deficiency in environment 0.98