Patent ID: 8405523

Claim:
A drive assist device comprising: signal information acquisition means for acquiring signal information regarding a traffic signal; means for determining whether or not passing is possible which determines whether or not it is possible to pass the traffic signal on the basis of the signal information; and assist content determination means for determining the content of drive assistance on the basis of a determination result of the means for determining whether or not passing is possible, wherein when it is determined that the traffic signal has an arrow lamp on the basis of the signal information, the means for determining whether or not passing is possible sets, as a no-pass time, a time from lighting of a first red signal after lighting of a green signal ends to the end of lighting of a red signal immediately before lighting of the next green signal, and the assist content determination means provides notification of a waiting time until the no-pass time ends from stopping of a vehicle when the vehicle stops within a range of the no-pass time and provides notification of a waiting time until the no-pass time ends from the start of the no-pass time when the vehicle stops out of the range of the no-pass time.