The Lake County Division of Transportation will be conducting a traffic signal upgrade project starting the week of September 13th. The project includes upgrading signal detection at two IL 137 signals. Flashing yellow left turn arrows will be installed as part of the project. Adaptive signal controls will be installed to allow for the signals to communicate and adjust signal timings for more efficient traffic flow. Temporary signals will be used while existing signals are taken down and the new poles are installed. For more details click here.