Three people were injured Wednesday afternoon when a car slammed into the back of a utility vehicle on Emmet Street, hitting two workers standing behind the truck. It happened shortly after 2:30 p.m. in front of Barracks Road Shopping Center. The two workers standing in back of the truck were struck by a southbound car that crossed over from the left lane into the right lane, which was blocked off by cones as a work zone. City Police Lt. Ronnie Roberts says the workers and the driver of the car were taken to UVA Hospital. The car was driven by 75-year-old Conrad Smith of Crozet. Roberts says Smith might have had a medical condition that caused him to veer out of the left lane. Roberts says one of the utility workers, a 45-year-old man from Louisa, was seriously injured. The other worker, a 23-year-old man from Keswick, had less serious injuries. Conrad Smith also had non life-threatening injuries. Roberts says the right lane was clearly blocked off by cones. Southbound Emmet Street was shut down for about two hours in front of Barracks Road Shopping Center, and traffic had to be diverted up to Millmont Street. The utility work involved replacing a power pole that had been damaged in a previous traffic accident.