Methods for executing autonomous rideshare requests

1. A method for executing autonomous rideshare requests comprising:

autonomously navigating an autonomous vehicle to a pickup location specified in a rideshare request submitted by a user, a user arrival timer and a depart timer being set for the rideshare request, the user arrival timer being set for a first duration and the depart timer being set for a second duration exceeding the first duration by a buffer time, a state of the user arrival timer provided to a mobile computing device affiliated with the user;

rendering a state of the depart timer on an external display of the autonomous vehicle, the state of the depart timer communicating an intent of the autonomous vehicle externally;

departing from the pickup location without the user in response to expiration of the user arrival timer if the user fails to arrive at the autonomous vehicle; and

in response to the user arriving at the autonomous vehicle prior to expiration of the user arrival timer, departing from the pickup location with the user based on the depart timer.

2. One or more tangible non-transitory computer-readable storage media storing computer-executable instructions for performing a computer process on a computing system, the computer process comprising:

setting a user arrival timer for a rideshare request submitted by a user, the rideshare request specifying a pickup location for an autonomous vehicle, the user arrival timer having a first duration;

setting a depart timer for the rideshare request, the depart timer having a second duration, the second duration exceeding the first duration by a buffer time, a state of the depart timer being communicated external to the autonomous vehicle;

sending a state of the user arrival timer to a mobile computing device affiliated with the user;

causing the autonomous vehicle to depart the pickup location in response to expiration of the user arrival timer and a failure of the user to arrive at the autonomous vehicle; and

causing the autonomous vehicle to depart the pickup location based on the depart timer in response to detection of the user arriving at the autonomous vehicle prior to expiration of the user arrival timer.

3. The method of claim 1 , wherein departure of the autonomous vehicle from the pickup location without the user is delayed past the expiration of the user arrival timer based on a location of at least one of the user or the mobile computing device relative to the autonomous vehicle.

4. The method of claim 1 , wherein the user arrival timer and the depart timer are set in response to the autonomous vehicle being double-parked at the pickup location.

5. The method of claim 1 , wherein the user arrival timer and the depart timer are set in response to a presence of at least one other vehicle proximate to the pickup location.

6. The method of claim 1 , wherein the buffer time is determined based on at least one of a number of passengers or an amount of luggage.

7. The method of claim 1 , wherein the rideshare request is cancelled upon expiration of a maximum wait timer, the maximum wait timer having a third duration longer than the second duration.

8. The method of claim 1 , further comprising:

determining a route traveling away from and back to the pickup location; and

autonomously navigating along the route following departure from the pickup location without the user.

9. The method of claim 8 , wherein the route is determined based on an estimated travel duration along the route and an estimated time of arrival of the user at the pickup location.

10. The method of claim 1 , further comprising:

determining a wait location different than the pickup location; and

autonomously navigating to the wait location following departure from the pickup location without the user.

11. The method of claim 1 , wherein the autonomous vehicle moves from the pickup location without the user prior to expiration of the user arrival timer in response to at least one of a command or an approaching emergency vehicle having a path intersecting the pickup location.

12. The one or more tangible non-transitory computer-readable storage media of claim 2 , wherein the autonomous vehicle departs the pickup location along a route returning to the pickup location in response to expiration of the user arrival timer and the failure of the user to arrive at the autonomous vehicle.

13. The one or more tangible non-transitory computer-readable storage media of claim 12 , wherein the route is determined based on an estimated travel duration along the route and an estimated time of arrival of the user at the pickup location.

14. The one or more tangible non-transitory computer-readable storage media of claim 2 , wherein the autonomous vehicle moves to a second location following departure from the pickup location in response to expiration of the user arrival timer and the failure of the user to arrive at the autonomous vehicle.

15. The one or more tangible non-transitory computer-readable storage media of claim 14 , wherein the second location is selected from a list of potential locations determined based on at least one of a location type or a distance from the pickup location.

16. The one or more tangible non-transitory computer-readable storage media of claim 14 , further comprising:

sending a notification of the second location to the mobile computing device.

17. The one or more tangible non-transitory computer-readable storage media of claim 2 , wherein the autonomous vehicle moves from the pickup location prior to expiration of the user arrival timer in response to a command.

18. The one or more tangible non-transitory computer-readable storage media of claim 2 , wherein the autonomous vehicle moves from the pickup location prior to expiration of the user arrival timer in response to an emergency.

19. The one or more tangible non-transitory computer-readable storage media of claim 2 , wherein a state of the depart timer is communicated to at least one device.

20. The one or more tangible non-transitory computer-readable storage media of claim 19 , wherein the at least one device is external to the autonomous vehicle.