Research Article
Vehicle Driving Risk Prediction Based on Markov Chain Model
Table 2
Instantaneous driving risk level definition.
| Risk group | Risk level | Thresholds |
| High risk | RL9 | 1.0 iTTC | RL8 | 0.67 iTTC < 1.0 | | RL7 | 0 iTTC < 0.67 & THW < 0.9 | RL6 | 0 iTTC < 0.67 & 0.9 THW < 1.3 | RL5 | 0 iTTC < 0.67 & 1.3 THW < 1.8 | Low risk | RL4 | 0 iTTC < 0.67 & 1.8 THW < 2.5 | RL3 | iTTC < 0 & THW < 2.5 | RL2 | 0 iTTC < 0.67 & 2.5 THW | RL1 | iTTC < 0 & 2.5 THW |
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