Predicting Freeway Traffic Crash Severity Using XGBoost-Bayesian Network Model with Consideration of Features Interaction

Table 7

The effect of weather and lighting conditions on the crash severity.

Lighting condition	Weather	Property loss crash		Injury crash	Fatal crash
Daytime	Sunny	0.0060	0.4221		0.5719
	Overcast	0.0186	0.4362		0.5453
	Rainy	0.0048	0.4224		0.5728
	Snowy	0.0029	0.4251		0.5720
	Foggy	0.0511	0.4725		0.4763
	Sunny	0.0124	0.3876		0.6001
	Overcast	0.0497	0.4455		0.5049
Dusk/Dawn	Rainy	0.0026	0.3886		0.6088
	Snowy	0.0007	0.4335		0.5658
	Foggy	0.0620	0.4643		0.4737
	Sunny	0.0171	0.2966		0.6864
	Overcast	0.0541	0.4324		0.5135
Lighting at night	Rainy	0.0101	0.3055		0.6844
	Snowy	0.0026	0.3736		0.6238
	Foggy	0.0879	0.5529		0.3592
	Sunny	0.0065	0.4742		0.5193
	Overcast	0.0322	0.4687		0.4991
Nonlight at night	Rainy	0.0031	0.4674		0.5294
	Snowy	0.0021	0.4390		0.5589
	Foggy	0.0522	0.4650		0.4828