VEHICLE TRAVELING CONTROL APPARATUS

A vehicle traveling control apparatus includes an in-vehicle camera, a processor, and a memory. The in-vehicle camera performs imaging to obtain a captured image of a traffic signal outside the vehicle. The processor executes a traffic signal stop control. The processor sets a detection region in the captured image, and extracts information on a reference object in the captured image and records the information in the memory. The detection region is adapted to a detection of a green lighting state of the traffic signal in the captured image. The captured image is obtained by the in-vehicle camera in the vehicle when the vehicle is stopped. The processor performs an adjustment of the detection region based on a difference between the reference object in the captured image after the setting of the detection range and the reference object in the captured image recorded in the memory.