In the event of a major crash, it would be very helpful to add to the map at exit routes when the road is closed. Meaning if an accident occurs at exit 10, put up a notice on the map at exit 8 and nine leading up to it, so that I know to seek an alternate route when I still have time to do it
I am watching a road closure on I 84 this morning, and the news clearly indicates that the road will be closed for a while. There was a tractor-trailer rollover with a fuel spill. Clearly, with the road that only has two lanes, it may be a long time before that clears up. I have been adding notes on traffic indicators to get the word out.