Crossing the intersection cause collisions, are one of the most common types of traffic accidents at intersections because of the lack of vision, i.e. Non Light of Sight (NLOS). Situational warning system can be an effective way to solve the problem, but the poor accuracy of the trajectory prediction module in the collision warning system reduces its reliability. Now the question is what are the available technologies so far we can have to enable the Trajectory prediction in intersections more effectively?