Table 20: Crashes at Red Light Camera Intersections Since Installation Controlling for Exposure
Table 20. Crashes at Red Light Camera Intersections Before and After Controlling for Exposure
|
Pre-Count |
Post-Count |
Count Increase / Decrease |
Percent Increase / Decrease |
After RLC Monthly Average |
Before RLC Monthly Average |
Difference |
All Approaches |
|||||||
Total Crashes |
1740 |
1769 |
+19 |
+1.1 |
3.37 |
3.34 |
0.03 |
Injury Crashes |
579 |
459 |
-120 |
-26.1 |
0.88 |
1.11 |
***-0.23 |
PDO Crashes |
1161 |
1308 |
+147 |
+12.7 |
2.50 |
2.23 |
** 0.27 |
Rear End Crashes |
1256 |
1386 |
+130 |
+10.4 |
2.65 |
2.41 |
* 0.24 |
Angle Crashes |
328 |
213 |
-115 |
-54.0 |
0.41 |
0.63 |
***-0.22 |
Monitored Approaches |
|||||||
Total Crashes |
951 |
1,000 |
+49 |
+5.2 |
2.30 |
2.18 |
0.12 |
Injury Crashes |
329 |
270 |
-59 |
-21.9 |
0.62 |
0.75 |
* -0.13 |
PDO Crashes |
622 |
729 |
+107 |
+17.2 |
1.68 |
1.42 |
*** 0.26 |
Rear End Crashes |
716 |
814 |
+98 |
+13.7 |
1.88 |
1.64 |
* 0.24 |
Angle Crashes |
164 |
103 |
-61 |
-59.2 |
0.43 |
0.54 |
* -0.11 |
Note: #p<0.10, *p<0.05, **p<0.01, ***p<0.001