Characteristics of road traffic injuries and crashes within the study period
| Variable | Before | After | Total |
| Frequency (%) | Frequency (%) | Frequency (%) | |
| Number injured | |||
| Control sites | 173 (44.59) | 240 (62.99) | 413 (53.71) |
| Intervention sites | 215 (55.41) | 141 (37.01) | 356 (46.29) |
| Median age of casualties (min, max) | 32 (1, 82) | 34 (1, 86) | 33 (1, 86) |
| Control sites injury severity | |||
| Fatal | 31 (17.92) | 27 (11.25) | 58 (14.04) |
| Severe injury | 77 (44.51) | 112 (46.67) | 189 (45.76) |
| Minor injury | 65 (37.57) | 101 (40.08) | 166 (40.19) |
| Intervention sites injury severity | |||
| Fatal | 38 (17.67) | 26 (18.44) | 64 (17.98) |
| Severe injury | 92 (42.79) | 71 (50.35) | 163 (45.79) |
| Minor injury | 85 (39.53) | 44 (31.21) | 129 (36.24) |
| Age group of casualties (years) | |||
| Less than 15 | 13 (3.35) | 28 (7.35) | 41 (5.3) |
| 15–29 | 127 (32.47) | 106 (27.82) | 233 (30.17) |
| 30–44 | 174 (44.85) | 158 (41. 47) | 332 (43.17) |
| 45 and above | 75 (19.33) | 89 (23.36) | 164 (21.33) |
| Sex of victims | |||
| Male | 285 (73.64) | 280 (73.49) | 565 (73.57) |
| Female | 102 (26.36) | 101 (26.51) | 203 (26.43) |
| Median age of drivers (min, max) | 35 (17, 59) | 37 (22, 70) | 36 (17, 70) |
| Casualty class | |||
| Driver | 122 (31.44) | 121 (31.76) | 243 (31.60) |
| Pedestrian | 226 (58.25) | 219 (57.48) | 446 (57.87) |
| Passenger | 40 (10.31) | 41 (10.76) | 81 (10.53) |
| Vehicles involved in a crash (n) | |||
| 1 | 138 (35.57) | 151 (39.63) | 289 (37.58) |
| 2 | 219 (56.44) | 195 (51.18) | 414 (53.84) |
| 3 | 22 (5.67) | 17 (4.46) | 39 (5.07) |
| 4 | 9 (2.32) | 18 (4.72) | 27 (3.51) |
| Vehicle type | |||
| Car | 61 (34.08) | 55 (31.07) | 116 (32.58) |
| Heavy goods vehicle (HGV) | 42 (23.46) | 52 (29.38) | 94 (26.40) |
| Bus | 54 (30.17) | 52 (29.38) | 106 (29.78) |
| Pick-up | 12 (6.70) | 6 (3.39) | 18 (5.06) |
| Others | 10 (5.59) | 12 (6.78) | 22 (6.18) |
| Time of crash | |||
| Daytime | 196 (50.52) | 213 (55.91) | 409 (53.19) |
| Night-time | 192 (49.48) | 168 (44.09) | 360 (46.81) |
| Collision type | |||
| Head on | 84 (21.65) | 71 (18.64) | 155 (20.16) |
| Rear end | 56 (14.43) | 91 (25.30) | 147 (19.12) |
| Side swipe | 72 (18.56) | 21 (5.51) | 93 (12.09) |
| Run-off road | 106 (27.32) | 103 (27.03) | 209 (27.18) |
| Hit object | 18 (4.64) | 48 (12.60) | 66 (8.58) |
| Hit pedestrian | 40 (10.31) | 37 (9.71) | 77 (10.01) |
| Others | 12 (3.09) | 10 (2.62) | 22 (2.86) |
max, maximum; min, minimum.