A Multifeatures Spatial-Temporal-Based Neural Network Model for Truck Flow Prediction

Table 2

The details of the variable definition.

Symbol	Feature	Type	Description
	Policy limit	Discrete variable	1: open to traffic; 0: closed to traffic
	Optimal time delay	Discrete variable	1: optimal time delay is 1; 2: optimal time delay is 2; 3: optimal time delay is 3
	Road resistance	Continue variable	Value of truck road resistance function
	Truck traffic flow	Continue variable	Value of truck traffic flow
	Congestion coefficient	Discrete variable	1: unblocked; 2: basically smooth; 3: light congestion; 4: moderate congestion; 5: the severe congestion