Driving assistance device and program

A driving assistance device that, when an other vehicle cuts into an own lane in which an own vehicle is traveling from a lane adjacent to the own lane in which the own vehicle is traveling, performs driving assistance processing of the own vehicle regarding a cutting-in of the other vehicle, the driving assistance device comprising:

• one or more processors;
• and
• a memory storing instructions that when performed by the one or more processors causes the driving assistance device to perform:
• determining whether a turn signal has been turned on in the other vehicle on the own lane side;
• specifying a cut-in position in the own lane at which the other vehicle will cut in when it is determined that the turn signal has been turned on in the other vehicle;
• and
• performing driving assistance processing based on the specified cut-in position.

A program for performing, when an other vehicle cuts into an own lane in which an own vehicle is traveling from a lane adjacent to the own lane in which the own vehicle is traveling, performs driving assistance processing of the own vehicle regarding a cutting-in of another vehicle, the program comprising:

• the program to be performed by a processor includes:
• a turn signal determination step of determining whether a turn signal has been turned on in the other vehicle on the own lane side;
• a cut-in position specifying step of specifying a cut-in position in the own lane at which the other vehicle will cut in when it is determined that the turn signal has been turned on in the other vehicle;
• and
• a driving assistance control step of performing driving assistance processing based on the cut-in position specified by the cut-in position specifying step.