A vehicle identification system identifies a target vehicle. First, the vehicle identification system instructs a first vehicle to start performing a predetermined action for identifying the target vehicle while the first vehicle is traveling in a vehicle identification zone. Next, the vehicle identification system starts a recognition process of recognizing an action performed by the first vehicle using a sensor while the first vehicle is travelling in the vehicle identification zone. Then, the vehicle identification system identifies the first vehicle that performs the predetermined action as the target vehicle.

A vehicle location identification device comprising a telescopic handle with multiple extendable members and a flag member at the top is disclosed. The device includes an arcuate, flexible clip at the bottom for attachment to the vehicle. An illumination source near the handle's bottom end illuminates the flag for increased visibility. The clip has a vibration-resistant connection to the handle, designed for window mounting. In one embodiment, the device includes an anti-theft or motion sensor that triggers visual or audio alerts upon unauthorized movement. The flag also features a digital display for showing the vehicle's license plate number. The device extends above the roof of a vehicle and is designed to enhance the visibility, identification, and position of a vehicle in parking areas.

Aspects of the disclosure provide a method of facilitating communications from an autonomous vehicle to a user. For instance, a method may include, while attempting to pick up the user and prior to the user entering an vehicle, inputting a current location of the vehicle and map information into a model in order to identify a type of communication action for communicating a location of the vehicle to the user; enabling a first communication based on the type of the communication action; determining whether the user has responded to the first communication from received sensor data; and enabling a second communication based on the determination of whether the user has responded to the communication.

A lighting apparatus for a vehicle may include: a first body mounted on a vehicle body, a second body rotatably installed in the first body, a driving unit configured to rotate the second body, a lighting unit rotated along with the second body and configured to radiate a lighting signal to an outside of the vehicle, a speaker unit rotated along with the second body and configured to output an acoustic signal to the outside of the vehicle.