Driving assistance device and driving assistance method

摘要

Provided are a driving assistance device and driving assistance method capable of appropriately deciding the necessity of driving assistance and implementing effective driving assistance. The driving assistance device (1) obtains a time-to-collision (TTC) before a vehicle reaches an intersection point where the vehicle and a moving body intersect in the travel direction of the vehicle and the direction intersecting the travel direction, and a time-to-vehicle (TTV) before the moving body reaches the intersection point, and implements driving assistance for the vehicle on the basis of the mutual relation between the TTC and the TTV.