HA! When I first read the heading I thought they would be using sensors to "charge" EV drivers a road use tax since they don't pay gasoline tax!
http://www.chicagotribune.com/news/local/breaking/ct-biz-tollway-electric-charging-20180926-story.htmlThe Illinois Tollway is examining the possibility of embedding equipment into I-294 that would charge electric vehicles as they drive along the road.