INDIANAPOLIS – An accident on an icy Indiana Toll Road almost two years ago is at the heart of a legal battle over whether the company operating the road under a 75-year lease enjoys governmental immunity. Chicago resident Aimee Campbell has sued ITR Concession Co. for not closing or adequately maintaining the road, which was allegedly dangerous for travel on Dec. 22, 2008. A Spanish-Australian consortium paid $3.8 billion to the state in 2006 to rent the Indiana Toll Road for the next 75 years. That group formed ITR Concession Co. to operate and manage the road. According to the...