For the past couple of years, the UK has tried out a new solution for rubbernecking:
[I]ncident screens have been trialed and developed to prevent road users from observing the incident and post-incident activities on the opposite carriageway. The aim is that if the scene is not visible to the traffic from the opposite carriageway it will prevent drivers from rubbernecking. Research carried out by the Highways Agency has established that the quick deployment and setting up of screening around serious incidents can reduce the amount of rubbernecking. This will also reduce the knock-on effects of congestion and secondary incidents occurring.
Eric A. Morris wants more numbers on how well they work. Seems like a terrific idea to me, unless people stop to wonder what that big green screen is doing there and slow down to see past it.
The Dish 