For real-time data, Waze is much, much better. If it weren't already aware of the accident so it could warn you, you could have let Waze know about it and, at

For real-time data, Waze is much, much better. If it weren't already aware of the accident so it could warn you, you could have let Waze know about it and, at the least, helped out many others who were coming after you.