Table 1.
Construction of the variables used in the analysis and basic statistics.
| Variables | Measurement | Mean (SD) |
|---|---|---|
| Dependent Variables | ||
| Severe injury, all pedestrians | 1 = death, fatal injury; 0 = non-fatal injury, possible injury |
0.47 (0.50) |
| Severe injury, 0–19-year-old pedestrians | 0.34 (0.47) | |
| Severe injury, 20–39-year-old pedestrians | 0.32 (0.47) | |
| Severe injury, 40–64-year-old pedestrians | 0.48 (0.50) | |
| Severe injury, over-64-year-old pedestrians | 0.67 (0.47) | |
| Independent Variables | ||
| Individual Characteristics | ||
| Pedestrian Variables | ||
| Pedestrian age | Continuous (year) | 44.07 (22.16) |
| Pedestrian gender | 1 = male; 0 = female | 0.54 (0.50) |
| Driver Variables | ||
| Driver age | Continuous (year) | 44.95 (15.47) |
| Driver gender | 1 = male; 0 = female | 0.73 (0.45) |
| Vehicle type | 1 = van, truck; 0 = passenger car | 0.20 (0.40) |
| Temporal Variables | ||
| Time | 1 = night time (6pm–6am); 0 = day time (6am–6pm) |
0.50 (0.50) |
| Weather condition | 1 = cloudy, rain, snow, fog, other; 0 = clear | 0.13 (0.33) |
| Neighborhood Characteristics | ||
| Safety Zones | ||
| School zone | Total area of school zones in 0.4 km radius | 259,455 (177,535) |
| Silver zone | Total area of silver zones in 0.4 km radius | 40,951 (78,112) |
| Road Environments | ||
| Bus stop | Number of bus stops in 0.4 km radius | 7.75 (3.24) |
| Crosswalk | Number of crosswalks in 0.4 km radius | 37.43 (18.41) |
| Traffic signal | Number of traffic signals in 0.4 km radius | 32.10 (14.57) |
| Speed camera | Number of speed cameras in 0.4 km radius | 2.46 (3.61) |
| Average posted speed limit | Average of posted speed limits in 0.4 km radius | 54.89 (7.74) |
| Neighborhood street | Total length of neighborhood streets in 0.4 km radius | 101,412 (47,080) |
| Arterial road | Total length of arterial roads in 0.4 km radius | 10,319 (7358) |
| Land Uses | ||
| Residential area | Total area of residential use in 0.4 km radius | 315,527 (137,196) |
| Commercial area | Total area of commercial use in 0.4 km radius | 97,362 (124,992) |
| Industrial area | Total area of industrial use in 0.4 km radius | 15,929 (65,482) |