Unique signaling for vehicles to preserve user privacy

A system comprising:

• one or more server computing devices comprising one or more processors configured to:
• receive a request for a vehicle having a first display, the request identifying a location to pick up a passenger;
• in response to the receiving the request, generate a signal having content in accordance with a set of rules stored in memory, wherein the signal does not directly or indirectly identify a prior or current location of the passenger, or a destination location for a trip to which the vehicle is assigned;
• dispatch the vehicle to the location;
• and
• send the signal to the vehicle and a client computing device of the passenger having a second display, wherein the content of the signal is displayed on the first display and the second display in order to enable the passenger to identify the vehicle as being assigned to the passenger.

A non-transitory computer-readable recording medium having instructions stored thereon, the instructions, when executed by one or more processors of a server computing system, implement a method comprising:

• receiving a request for a vehicle having a first display, the request identifying a location to pick up a passenger;
• in response to the receiving the request, generating a signal having content in accordance with a set of rules stored in memory, wherein the signal does not identify, directly or indirectly, a prior or current location of the passenger, or a destination location for a trip to which the vehicle is assigned;
• dispatching the vehicle to the location;
• and
• sending the signal to the vehicle and a client computing device of the passenger having a second display, wherein the content of the signal is displayed on the first display and the second display in order to enable the passenger to identify the vehicle as being assigned to the passenger.