Analysis and Prediction of Overloaded Extra-Heavy Vehicles for Highway Safety Using Machine Learning

Table 7

Summary of the laws of clustering results of the national and provincial highways when k = 4.

Year	Quarter	Most overloaded vehicles			Vehicles with high overload rate
		Entry time	Gross weight of vehicle and goods	Axle number	Entry time	Gross weight of vehicle and goods	Axle number
2018	1	0:00–8:00	Over 49 t	6	2:00–3:00	Over 49 t	6
	2	0:00–8:00	Over 49 t	6	21:00–23:00	Over 49 t	6
	3	0:00–8:00	Over 49 t	6	21:00–23:00	Over 49 t	6
	4	0:00–8:00	Over 49 t	6	23:00	Over 49 t	6
2019	1	4:00–13:00	Over 49 t	6	0:00–3:00	Over 49 t	6
	2	0:00–15:00	Over 49 t	6	0:00–3:00	Over 49 t	6
	3	4:00–5:00	Over 49 t	6	2:00–3:00	Over 49 t	6
	4	8:00–15:00	Over 49 t	6	0:00–4:00	Over 49 t	6