Table 1.
Characteristics of Alcohol-Involved Crashes, Sobriety Checkpoints, and Saturation Patrols; Los Angeles, 2013–2017
| Time period | Alcohol-involved crashes (n=11,006) n (%) |
Roadside sobriety checkpoints (n=557) n (%) |
Saturation patrols (n=330) n (%) |
|---|---|---|---|
| Day of week | |||
| Sunday | 1,788 (16.3) | 14 (2.5) | 114 (34.5) |
| Monday | 1,059 (9.6) | 2 (0.4) | 2 (0.6) |
| Tuesday | 1,107 (10.1) | 2 (0.4) | 2 (0.6) |
| Wednesday | 1,142 (10.4) | 3 (0.5) | 1 (0.3) |
| Thursday | 1,437 (13.1) | 40 (7.2) | 77 (23.3) |
| Friday | 2,107 (19.1) | 271 (48.7) | 70 (21.2) |
| Saturday | 2,366 (21.5) | 225 (40.4) | 64 (19.4) |
| Month | |||
| January | 862 (7.8) | 50 (9.0) | 46 (13.9) |
| February | 854 (7.8) | 43 (7.7) | 21 (6.4) |
| March | 938 (8.5) | 50 (9.0) | 34 (10.3) |
| April | 841 (7.6) | 50 (9.0) | 29 (8.8) |
| May | 930 (8.5) | 46 (8.3) | 27 (8.2) |
| June | 835 (7.6) | 56 (10.1) | 19 (5.8) |
| July | 932 (8.5) | 47 (8.4) | 26 (7.9) |
| August | 923 (8.4) | 41 (7.4) | 23 (7.0) |
| September | 861 (7.8) | 48 (8.6) | 20 (6.1) |
| October | 1,044 (9.5) | 28 (5.0) | 22 (6.7) |
| November | 914 (8.3) | 45 (8.1) | 25 (7.6) |
| December | 1,072 (9.7) | 53 (9.5) | 38 (11.5) |
| Duration | |||
| <5 hours | — | 1 (0.2) | 1 (0.3) |
| 5 hours | — | 268 (48.1) | 4 (1.2) |
| 6 hours | — | 268 (48.1) | 3 (0.9) |
| 7 hours | — | 13 (2.3) | 3 (0.9) |
| 8 hours | — | 7 (1.3) | 312 (94.5) |
| >8 hours | — | 0 (0.0) | 7 (2.1) |