Research Article
Do Expressway Interchanges Increase Crash Injury Severities? Insights Using Temporal Instability and Unobserved Heterogeneity
Table 5
Probability difference between different years based on the IAC model.
| Prediction year Base year | IAC | 2018 | 2019 | No injury | Minor injury | Severe injury | No injury | Minor injury | Severe injury |
| 2017 | 0.0118 | −0.0053 | −0.0065 | 0.0056 | −0.0029 | −0.0027 | 2018 | — | — | — | −0.0175 | 0.0089 | 0.0086 |
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