Method | Fatal and injury crashes | Total crashes | ||
CMF | Standard Error (SE) | CMF | Standard Error (SE) | |
1) Before-and-after with EB method | 1.01 | 0.025 | 1.16 | 0.016 |
2) Before-and-after with comparison group method | 1.35 | 0.047 | 1.27 | 0.019 |
3) Cross-sectional method | 1.62 | 0.244 | 1.25 | 0.112 |