What are applications of object/human tracking in autonomous cars? Objects tracking is finding the trajectory of each object in consecutive frames. Human tracking is a subset of object tracking which just considers humans.

I've seen many papers that divide tracking methods into two parts: 


Online tracking: Tracker just uses current and previous frames.
Offline tracking: Tracker uses all frames.


All of them mention that online tracking is suitable for autonomous driving and robotics, but I don't understand this part. What are the applications of object/human tracking in autonomous driving? 

Do you know some related papers?
There are two important parts:


When you track, you have a trajectory you can expect. So it becomes easier to "look into the future" is you understand the past
When you loose an object you had a trajectory of before, you might be able to come up with an explanation that can influence your behavior