When Self Driving, automatically identify accidents and road debris for avoidance and logging to notify local emergency services and road crews.
Use the sensors of the car to locate and tag debris on the road through GPS coordinates and send that data to the city road crew of the local government. This has the benefit of saving the environment by causing less pollution to be emitted by city services by updating with exact locations and not a guess of where a hazard is on the road.
With V2V communications, the same data could alert nearby cars too.
The same system could also be used to notify emergency services to an accident with a filtering system alert the driver through the display to answer a simple yes or no question ie. if emergency services are present select yes or in case of debris is it there or has it been removed and the data can be sent to cars on the network to alert the scene is clear.
Emergency services could also use the system to push alerts from Amber alerts to severe weather bulletins or quite possibly a nuke strike. The last ones an exaggeration (I HOPE). The other option is when more self driven cars start hitting the road they could link up to surrounding cars and essentially create a moving chevron pattern by turning all the indicators on at the same time to alert to conditions ahead helping to reduce accidents. I know it is long post but if it saves a life then the time was worth writing this post.
Moderator: Common vehicle communication systems are in development by the US government. The objective is to create a universal hardware, communication and protocols standards that would work across all makes of vehicles and offer much of what is described above.