This is welcome news. These systems are a big part of why highway fatalities are at their lowest levels since the 1950's.
I think it would be a big mistake to get rid of these systems.
I also don't think you can compare apples to oranges.
THis is good news. These systems really are proving affective in reducing property damage and personal injuries around the country.
All I know is that these systems really have a dramatic effect on the amount of property damage and personal injuries where they are in place.
This is especially true when there is a lot of publicity like this article about them. Drivers are just naturally more cautious when they think there is a chance they will get a ticket.