SHOSHONE — The Idaho Transportation Department and Idaho State Police will lower the speed limit to 65 mph Saturday on Interstate 84 within an active construction zone east of Twin Falls. The reduction is being made to maximize the safety of drivers traveling through the area.
Work zone speed limits are determined in accordance with federal guidelines set by the Manual on Uniform Traffic Control Devices. Additional factors taken into account when determining speed limits are physical barriers like sight restrictions and observed traffic flow.
“We are seeing problems related to impatience and inattentiveness when drivers enter a work zone. Motorists are often driving too aggressively for the area and not affording themselves enough space to safely react to changes in traffic flow, ”Lieutenant Robert Rausch, a deputy district commander with ISP, said in a statement.
About 94 percent of serious-injury crashes are caused by human error. According to preliminary reports, there have been at least 40 reported fatalities on Idaho roads since Memorial Day weekend.