TDOT began making changes to the intersection of Sparta Highway and Rock Island Road on Wednesday.Three people have died in two crashes at that intersection this year. “In the short term, our Highway Marking crew is planning on installing additional signage and pavement marking at this location this week, weather permitting,” said TDOT spokesperson Jennifer Flynn on Wednesday. In the long term, the intersection is expected to receive a flashing light.“There is a safety project in the works to install a flashing beacon at this location,” said Flynn.