Predicting Critical Bicycle-Vehicle Conflicts at Signalized Intersections

Table 4

Prediction model features.

Features	Description
Velocity	Velocity computed for interacting vehicle and bicycle at every frame
Acceleration	Acceleration computed for interacting vehicle and bicycle at every frame
Relative distance	The Euclidean distance between interacting vehicle and bicycle in the same frame
Relative velocity	Rate of change of relative distance computed at every frame
TTXavg	Mean of TTX1 and TTX2
RTTC	Absolute difference between TTX1 and TTX2
T2	T2 is defined as the maximum value of TTX1 and TTX2
Direction of conflict	1: if the angle between two road users is between 0°and 15°, and 0: otherwise
	1 indicates a rear-end type of near-crash. Otherwise, it could be sideswipe, lane changing, or other types of near-crashes
Distance to conflict point	Distance from the current road-user location and the predicted TIP