NEWTON, Iowa -- Law enforcement and Iowa Speedway officials are preparing for the 2015 race season at Iowa Speedway in Newton, Iowa, and are asking Iowans and visiting race fans to do the same. Ten races over the course of four weekends are scheduled this year. Attendance numbers will vary for each race, but organizers anticipate 17,000 – 40,000 fans will attend each race day. Please follow the link to obtain information regarding traffic information: