APPENDIX F
Video Coding Data –
Observed Violation
Table 2. Officer observed possible violation types in video record (as stated by officer appearing in video record) at intervention and comparison sites.
Wave |
||||||||
|---|---|---|---|---|---|---|---|---|
One |
Two |
Three |
Four |
Five |
Total |
|||
Bellingham |
Speed |
Count |
66 |
29 |
39 |
12 |
21 |
167 |
Column N % |
95.7% |
74.4% |
95.1% |
85.7% |
84.0% |
88.8% |
||
Improper lane change |
Count |
1 |
0 |
0 |
0 |
0 |
1 |
|
Column N % |
1.4% |
.0% |
.0% |
.0% |
.0% |
.5% |
||
Fail to signal |
Count |
0 |
7 |
1 |
2 |
2 |
12 |
|
Column N % |
.0% |
17.9% |
2.4% |
14.3% |
8.0% |
6.4% |
||
Follow too close |
Count |
2 |
0 |
1 |
0 |
1 |
4 |
|
Column N % |
2.9% |
.0% |
2.4% |
.0% |
4.0% |
2.1% |
||
Reckless driving |
Count |
0 |
0 |
0 |
0 |
0 |
0 |
|
Column N % |
.0% |
.0% |
.0% |
.0% |
.0% |
.0% |
||
Negligent driving 2nd degree |
Count |
0 |
3 |
0 |
0 |
1 |
4 |
|
Column N % |
.0% |
7.7% |
.0% |
.0% |
4.0% |
2.1% |
||
Other |
Count |
0 |
0 |
0 |
0 |
0 |
0 |
|
Column N % |
.0% |
.0% |
.0% |
.0% |
.0% |
.0% |
||
3rd lane |
Count |
0 |
0 |
0 |
0 |
0 |
0 |
|
Column N % |
.0% |
.0% |
.0% |
.0% |
.0% |
.0% |
||
Unknown |
Count |
0 |
0 |
0 |
0 |
0 |
0 |
|
Column N % |
.0% |
.0% |
.0% |
.0% |
.0% |
.0% |
||
Total |
Count |
69 |
39 |
41 |
14 |
25 |
188 |
|
Column N % |
100.0% |
100.0% |
100.0% |
100.0% |
100.0% |
100.0% |
||
Lacey |
Speed |
Count |
1 |
0 |
0 |
2 |
3 |
6 |
Column N % |
6.7% |
.0% |
.0% |
22.2% |
18.8% |
9.0% |
||
Improper lane change |
Count |
10 |
11 |
5 |
6 |
5 |
37 |
|
Column N % |
66.7% |
55.0% |
71.4% |
66.7% |
31.3% |
55.2% |
||
Fail to signal |
Count |
0 |
0 |
0 |
0 |
2 |
2 |
|
Column N % |
.0% |
.0% |
.0% |
.0% |
12.5% |
3.0% |
||
Follow too close |
Count |
1 |
9 |
1 |
1 |
3 |
15 |
|
Column N % |
6.7% |
45.0% |
14.3% |
11.1% |
18.8% |
22.4% |
||
Reckless driving |
Count |
2 |
0 |
1 |
0 |
1 |
4 |
|
Column N % |
13.3% |
.0% |
14.3% |
.0% |
6.3% |
6.0% |
||
Negligent driving 2nd degree |
Count |
0 |
0 |
0 |
0 |
1 |
1 |
|
Column N % |
.0% |
.0% |
.0% |
.0% |
6.3% |
1.5% |
||
Other |
Count |
1 |
0 |
0 |
0 |
0 |
1 |
|
Column N % |
6.7% |
.0% |
.0% |
.0% |
.0% |
1.5% |
||
3rd lane |
Count |
0 |
0 |
0 |
0 |
1 |
1 |
|
Column N % |
.0% |
.0% |
.0% |
.0% |
6.3% |
1.5% |
||
Unknown |
Count |
0 |
0 |
0 |
0 |
0 |
0 |
|
Column N % |
.0% |
.0% |
.0% |
.0% |
.0% |
.0% |
||
Total |
Count |
15 |
20 |
7 |
9 |
16 |
67 |
|
Column N % |
100.0% |
100.0% |
100.0% |
100.0% |
100.0% |
100.0% |
||
Intervention |
Speed |
Count |
67 |
29 |
39 |
14 |
24 |
173 |
Column N % |
79.8% |
49.2% |
81.3% |
60.9% |
58.5% |
67.8% |
||
Improper lane change |
Count |
11 |
11 |
5 |
6 |
5 |
38 |
|
Column N % |
13.1% |
18.6% |
10.4% |
26.1% |
12.2% |
14.9% |
||
Fail to signal |
Count |
0 |
7 |
1 |
2 |
4 |
14 |
|
Column N % |
.0% |
11.9% |
2.1% |
8.7% |
9.8% |
5.5% |
||
Follow too close |
Count |
3 |
9 |
2 |
1 |
4 |
19 |
|
Column N % |
3.6% |
15.3% |
4.2% |
4.3% |
9.8% |
7.5% |
||
Reckless driving |
Count |
2 |
0 |
1 |
0 |
1 |
4 |
|
Column N % |
2.4% |
.0% |
2.1% |
.0% |
2.4% |
1.6% |
||
Negligent driving 2nd degree |
Count |
0 |
3 |
0 |
0 |
2 |
5 |
|
Column N % |
.0% |
5.1% |
.0% |
.0% |
4.9% |
2.0% |
||
Other |
Count |
1 |
0 |
0 |
0 |
0 |
1 |
|
Column N % |
1.2% |
.0% |
.0% |
.0% |
.0% |
.4% |
||
3rd lane |
Count |
0 |
0 |
0 |
0 |
1 |
1 |
|
Column N % |
.0% |
.0% |
.0% |
.0% |
2.4% |
.4% |
||
Unknown |
Count |
0 |
0 |
0 |
0 |
0 |
0 |
|
Column N % |
.0% |
.0% |
.0% |
.0% |
.0% |
.0% |
||
Total |
Count |
84 |
59 |
48 |
23 |
41 |
255 |
|
Column N % |
100.0% |
100.0% |
100.0% |
100.0% |
100.0% |
100.0% |
||
Kelso |
Speed |
Count |
3 |
3 |
3 |
4 |
2 |
15 |
Column N % |
12.5% |
27.3% |
33.3% |
66.7% |
50.0% |
27.8% |
||
Improper lane change |
Count |
5 |
4 |
1 |
1 |
0 |
11 |
|
Column N % |
20.8% |
36.4% |
11.1% |
16.7% |
.0% |
20.4% |
||
Fail to signal |
Count |
4 |
0 |
1 |
0 |
1 |
6 |
|
Column N % |
16.7% |
.0% |
11.1% |
.0% |
25.0% |
11.1% |
||
Follow too close |
Count |
9 |
2 |
3 |
1 |
0 |
15 |
|
Column N % |
37.5% |
18.2% |
33.3% |
16.7% |
.0% |
27.8% |
||
Reckless driving |
Count |
0 |
1 |
0 |
0 |
0 |
1 |
|
Column N % |
.0% |
9.1% |
.0% |
.0% |
.0% |
1.9% |
||
Negligent driving 2nd degree |
Count |
0 |
0 |
1 |
0 |
1 |
2 |
|
Column N % |
.0% |
.0% |
11.1% |
.0% |
25.0% |
3.7% |
||
Other |
Count |
1 |
1 |
0 |
0 |
0 |
2 |
|
Column N % |
4.2% |
9.1% |
.0% |
.0% |
.0% |
3.7% |
||
3rd lane |
Count |
2 |
0 |
0 |
0 |
0 |
2 |
|
Column N % |
8.3% |
.0% |
.0% |
.0% |
.0% |
3.7% |
||
Unknown |
Count |
0 |
0 |
0 |
0 |
0 |
0 |
|
Column N % |
.0% |
.0% |
.0% |
.0% |
.0% |
.0% |
||
Total |
Count |
24 |
11 |
9 |
6 |
4 |
54 |
|
Column N % |
100.0% |
100.0% |
100.0% |
100.0% |
100.0% |
100.0% |
||
Spokane |
Speed |
Count |
23 |
19 |
20 |
34 |
21 |
117 |
Column N % |
60.5% |
44.2% |
44.4% |
58.6% |
41.2% |
49.8% |
||
Improper lane change |
Count |
4 |
5 |
4 |
2 |
6 |
21 |
|
Column N % |
10.5% |
11.6% |
8.9% |
3.4% |
11.8% |
8.9% |
||
Fail to signal |
Count |
6 |
13 |
15 |
15 |
14 |
63 |
|
Column N % |
15.8% |
30.2% |
33.3% |
25.9% |
27.5% |
26.8% |
||
Follow too close |
Count |
4 |
6 |
4 |
3 |
8 |
25 |
|
Column N % |
10.5% |
14.0% |
8.9% |
5.2% |
15.7% |
10.6% |
||
Reckless driving |
Count |
0 |
0 |
0 |
0 |
0 |
0 |
|
Column N % |
.0% |
.0% |
.0% |
.0% |
.0% |
.0% |
||
Negligent driving 2nd degree |
Count |
1 |
0 |
0 |
1 |
0 |
2 |
|
Column N % |
2.6% |
.0% |
.0% |
1.7% |
.0% |
.9% |
||
Other |
Count |
0 |
0 |
2 |
3 |
2 |
7 |
|
Column N % |
.0% |
.0% |
4.4% |
5.2% |
3.9% |
3.0% |
||
3rd lane |
Count |
0 |
0 |
0 |
0 |
0 |
0 |
|
Column N % |
.0% |
.0% |
.0% |
.0% |
.0% |
.0% |
||
Unknown |
Count |
0 |
0 |
0 |
0 |
0 |
0 |
|
Column N % |
.0% |
.0% |
.0% |
.0% |
.0% |
.0% |
||
Total |
Count |
38 |
43 |
45 |
58 |
51 |
235 |
|
Column N % |
100.0% |
100.0% |
100.0% |
100.0% |
100.0% |
100.0% |
||
Comparison |
Speed |
Count |
26 |
22 |
23 |
38 |
23 |
132 |
Column N % |
41.9% |
40.7% |
42.6% |
59.4% |
41.8% |
45.7% |
||
Improper lane change |
Count |
9 |
9 |
5 |
3 |
6 |
32 |
|
Column N % |
14.5% |
16.7% |
9.3% |
4.7% |
10.9% |
11.1% |
||
Fail to signal |
Count |
10 |
13 |
16 |
15 |
15 |
69 |
|
Column N % |
16.1% |
24.1% |
29.6% |
23.4% |
27.3% |
23.9% |
||
Follow too close |
Count |
13 |
8 |
7 |
4 |
8 |
40 |
|
Column N % |
21.0% |
14.8% |
13.0% |
6.3% |
14.5% |
13.8% |
||
Reckless driving |
Count |
0 |
1 |
0 |
0 |
0 |
1 |
|
Column N % |
.0% |
1.9% |
.0% |
.0% |
.0% |
.3% |
||
Negligent driving 2nd degree |
Count |
1 |
0 |
1 |
1 |
1 |
4 |
|
Column N % |
1.6% |
.0% |
1.9% |
1.6% |
1.8% |
1.4% |
||
Other |
Count |
1 |
1 |
2 |
3 |
2 |
9 |
|
Column N % |
1.6% |
1.9% |
3.7% |
4.7% |
3.6% |
3.1% |
||
3rd lane |
Count |
2 |
0 |
0 |
0 |
0 |
2 |
|
Column N % |
3.2% |
.0% |
.0% |
.0% |
.0% |
.7% |
||
Unknown |
Count |
0 |
0 |
0 |
0 |
0 |
0 |
|
Column N % |
.0% |
.0% |
.0% |
.0% |
.0% |
.0% |
||
Total |
Count |
62 |
54 |
54 |
64 |
55 |
289 |
|
Column N % |
100.0% |
100.0% |
100.0% |
100.0% |
100.0% |
100.0% |
||
Total |
Speed |
Count |
93 |
51 |
62 |
52 |
47 |
305 |
Column N % |
63.7% |
45.1% |
60.8% |
59.8% |
49.0% |
56.1% |
||
Improper lane change |
Count |
20 |
20 |
10 |
9 |
11 |
70 |
|
Column N % |
13.7% |
17.7% |
9.8% |
10.3% |
11.5% |
12.9% |
||
Fail to signal |
Count |
10 |
20 |
17 |
17 |
19 |
83 |
|
Column N % |
6.8% |
17.7% |
16.7% |
19.5% |
19.8% |
15.3% |
||
Follow too close |
Count |
16 |
17 |
9 |
5 |
12 |
59 |
|
Column N % |
11.0% |
15.0% |
8.8% |
5.7% |
12.5% |
10.8% |
||
Reckless driving |
Count |
2 |
1 |
1 |
0 |
1 |
5 |
|
Column N % |
1.4% |
.9% |
1.0% |
.0% |
1.0% |
.9% |
||
Negligent driving 2nd degree |
Count |
1 |
3 |
1 |
1 |
3 |
9 |
|
Column N % |
.7% |
2.7% |
1.0% |
1.1% |
3.1% |
1.7% |
||
Other |
Count |
2 |
1 |
2 |
3 |
2 |
10 |
|
Column N % |
1.4% |
.9% |
2.0% |
3.4% |
2.1% |
1.8% |
||
3rd lane |
Count |
2 |
0 |
0 |
0 |
1 |
3 |
|
Column N % |
1.4% |
.0% |
.0% |
.0% |
1.0% |
.6% |
||
Unknown |
Count |
0 |
0 |
0 |
0 |
0 |
0 |
|
Column N % |
.0% |
.0% |
.0% |
.0% |
.0% |
.0% |
||
Total |
Count |
146 |
113 |
102 |
87 |
96 |
544 |
|
Column N % |
100.0% |
100.0% |
100.0% |
100.0% |
100.0% |
100.0% |
||