Development of AI-Based Vehicle Detection and Tracking System for C-ITS Application

Table 2

Traffic information storage format including the number of vehicles on the link and queue length.

Field name		Description
LinkID		Serial number of link ID in road central line of HD map in the detection area
Timestamp		Vehicle detection time (present)
Avgspeed		Average speed of vehicles with link ID
Linktraveltime		Difference between the entry and exit time of vehicle
Numvehicle		Number of vehicles for the applicable link (present)
Object status	ObjectID	ID of an object with abnormal driving
	Offset	Offset of event point for link ID
Queue	QueueID	Queue event ID
	Offsetstart	Start point of offset of event point for link ID
	Offsetend	End point of offset of event point for link ID
Road prediction	Index	Index (0–29 for 3 s prediction in units of 0.1 s)
	Timestamp	Vehicle detection time (prediction)
	Numvehicle	Number of vehicles for the applicable link (prediction)
	Avgspeed	Average vehicle speed (prediction)