If the normal route is changed for some reasons (accident, slow traffic, etc...) and the new route is redirected, it will be easy if some short explain will appear (route recalcullated becouse of...), so the drivers are not thinking they know the road better, and hit the problem...
If the normal route is changed for some reasons (accident, slow traffic, etc...) and the new route is redirected, it will be easy if some short explain will appear (route recalcullated becouse of...), so the drivers are not thinking they know the road better, and hit the problem...