▶[land·short·hard] If I am the moving car's driver when the initial collision happens, is the collision car to my front-left, front-right,
▶[land·long·hard] How many vehicles are observed?
▶[land·short·hard] How many moving cars are observed by the ego car in the ego car's opposite direction before collision in this video?
▶[land·short·medium] Which vehicle is most likely to have caused the accident based on its movement and position?
▶[land·short·easy] How many moving cars are observed by the ego car and are from the ego car's opposite direction road before collision in
▶[water·long·easy] How many ships are going to the opposite direction of upstream in this video?
▶[land·medium·medium] If you are the collided car starting from its initial position, and you want to navigate to the opposite direction of th
▶[land·short·hard] How many moving vehicles can be observed to have passed or to pass (in the next 2 seconds) the ego vehicle while those v
▶[land·short·easy] If I am standing at the road facing the initial navigation direction of the collision ego car and closing to the collisi
▶[air·short·easy] How many airplanes on the left side of the first moving airplane will be passed by it in this video?
▶[land·short·easy] If I am the ego car's driver when the initial collision happens, is the collision car to my front-left, front-right, bac
▶[land·short·medium] How many moving vehicles have been or are going to be passed by the ego vehicle while those vehicles are traveling in th
▶[air·medium·medium] How many airplanes on the right side of the second moving airplane will be passed by it in this video?
▶[air·short·easy] How many airplanes are observed in this video?
▶[land·short·hard] How many vehicles have been or are going to be passed by the ego vehicle while those vehicles are traveling in the oppos
▶[land·short·hard] If I am standing at the road facing the initial navigation direction of the moving blue car and closing to the ego car's
▶[land·short·medium] How many moving vehicles can be observed to have passed or to pass (in the next 2 seconds) the ego vehicle while those v
▶[air·medium·hard] How many airplanes on the right side of the first moving airplane will be passed by it in this video?
▶[land·short·hard] If I am standing at the road facing the direction of the ego's navigation direction and closing to the ego car's driver
▶[air·medium·medium] How many airplanes on the left side of the first moving airplane will be passed by it in this video?
▶[air·medium·hard] How many airplanes on the right side of the second moving airplane will be passed by it in this video?
▶[land·medium·hard] what is the direct distance between the collision pick truck and the white truck? (in meters)
▶[land·short·hard] How many vehicles are observed by the ego car and are also from the ego car's same direction road before collision in th
▶[land·short·hard] How many moving vehicles have been or are going to be passed by the ego vehicle while those vehicles are traveling in th
▶[land·short·easy] If I am the moving car's driver when the initial collision happens, is the collision car to my front-left, front-right,
▶[land·long·hard] In the forth accident, how many moving black cars are observed by the ego car in the front of the ego car?
▶[land·long·hard] In the last accident, How many moving vehicles have been or are going to be passed by the ego vehicle while those vehicl
▶[land·short·medium] How many stationary cars are observed by the ego car in the ego car's right side before collision?
▶[air·medium·easy] How many airplanes are observed in this video?
▶[land·short·hard] If I am standing at the initial collision place facing the navigation direction of the ego car when the initial collisio