Research Article
Using Multidimensional Data to Analyze Freeway Real-Time Traffic Crash Precursors Based on XGBoost-SHAP Algorithm
Table 4
Examples of road features and their values.
| | Number of on-ramps | Number of off-ramps | Curve | Upstream and downstream distance (m) | Number of lanes | Road width (m) |
| | 2 | 1 | 0 | 1067 | 3 | 19 | | 0 | 1 | 1 | 6180 | 3 | 11 | | 1 | 1 | 0 | 2733 | 3 | 11 | | 1 | 0 | 0 | 1020 | 3 | 11 | | 0 | 0 | 1 | 3933 | 3 | 11 | | 2 | 0 | 0 | 1200 | 3 | 11 |
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