An "instability strip" is a designated area on a road or runway that helps alert drivers or pilots when they are veering off the safe path. These strips are often marked with bright colors or textures to provide a visual and tactile warning. Their primary purpose is to enhance safety by preventing accidents caused by unintentional departures from the designated travel area. In aviation, instability strips are commonly found on runways and taxiways. They serve a similar function by indicating to pilots when they are straying from the intended flight path. By providing immediate feedback, these strips help maintain control and ensure safe operations in both ground and air travel.