Perhaps they should put up 'coffin' (or similar) signs up at the roadside on the approach to locations where there has been a fatal crash ? Multiple coffins would indicate multiple deaths and might be sobering for some drivers ?
It was a coffin SIGN I was suggesting - not an actual coffin .
I had in mind a triangular warning sign with a coffin symbol on the approach to a location where a fatality had occurred - not unlike the 'blackspot' warning sign sometimes used at the scene of multiple crashes .
A warning sign showing multiple coffins would indicate multiple deaths had occurred at a location - these signs should be placed ahead of the site to warn people before they get there - I sometimes think that floral and other tributes at crash sites are a distraction which might cause passing motorists to have/cause further crashes as they take their eyes/mind off the road .