call to emergency number if there is a crash
Waze can save lives by calling emergency services using the phone in case of a crash.
I would be too easy for waze to know the car crashed because the speed will go suddenly from cruise to zero.
Waze can also use the acelerometer on the phone to know the car just crashed.
I can dial 911 and give the location of the crash to ambulances, maybe it can also share personal information like name, insurance company, blood type, allergies and other useful information
Is that a responsibility of Waze? What would happen when because of one or the other error all Waze users worldwide would start automatically calling 911?
Waze is not integrated enough with the car to be able to determine with 100% you had a crash.
Waze is a GPS system, most new cars are equipped with emergency response systems that can with 100% accuracy report they had a crash. And even then they usually (right now) don't call 911 directly but they call the helpdesk of the car company.