One of the great things about modern navigation apps is that users are able to report any problems they see on the road. That feature gained traction with Waze, and the idea was that those reports help the app figure out whether it's going to negatively affect arrival time or not. So you're helping other drivers and they, in turn, help you.
Waze is far from the only app to offer it these days. Unsurprisingly, its cousin Google Maps also features incident reporting that works rather similarly. It wasn't always that way, but Google has made a lot of changes in recent years. Not only does it make the process a lot easier, but it also pools its reports in with those from Google-owned Waze.
