Rolling down the road

Not quite sure what to say about this.  It was a news report here in Japan about an alarming rise in a new kind of traffic accident due to the ETC system. That's our local highway toll card -- buy one and zip through the express lanes at the tollgates?
( Details )

So the ETC system is contributing to a rise in trucks rear-ending cars, mostly due to differences in driving styles. Aside from the obvious "raise the awareness" approach, apparently they are looking at changing the gates. Although it wasn't clear to me whether they want to speed up the the cars or slow down trucks -- or maybe both?

I wonder if the insurance companies will try to raise rates for ETC users?