I use 2 alerts most frequently, car on shoulder and police. I assume other have their frequents. To enter these takes several clicks on the screen, increasing the risk to users. Also, your competitors now have these features, requiring multiple clicks like Waze. Consider making Waze more user friendly by changing the app so when the user presses the button to go to alerts, it shows 3 buttons. Two frequently used buttons and one for other. For, me it would have car on shoulder, police, and other. Other will allow the user to click through other alerts like they do in the current flow.