DRIVING ASSISTANCE DEVICE

Provided is a driving assistance device that includes traveling route information acquiring means for acquiring a plurality of traveling route information items about different recognition ranges and course generating means for generating a course of a host vehicle using the plurality of traveling route information items according to a traveling environment. According to the invention, for example, a plurality of traveling route information items with different recognition ranges, such as a wide-area map 1, a middle-area map 2, and a local map 3, are used according to a traveling environment to generate a course. In this way, the host vehicle can travel safely.