This may or may not have been mentioned before, but at the moment there (unless I'm missing something) doesn't appear to be an option to display while on route all the incidents on your current route, so there is no way of knowing what is coming up ahead.

What would be useful, is a route line which remains on the screen (maybe configurable like the speed icon) which shows all the incidents from your current location up until your destination. This way you would know what incidents to expect!!!