Ключевые слова: alberta, alert, asphalt, audible, canada, center, chip, crossing, crossover, danger, distance, drift, drip, drowsy, groove, groves, growlers, headon, highway, imprint, lane, lines, marking, noise, paint, pass, pavement, prevent, pullout, road, roadway, rumble, safety, secondary, single, sleep, sleeper, sound, strip, surface, tactile, tire, traffic, transportation, travel, undivided, vehicles, vibration, warning, worn,