Weather--Precision De-icing (IMAGE) DOE/Oak Ridge National Laboratory Caption An ORNL-led team developed a variable control mechanism to enable precision de-icing on urban roads, using roadway data from the City of Knoxville in Tennessee. Credit Jason Richards/Oak Ridge National Laboratory, US Department of Energy Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.