Keywords: Bufo bufo, European, alert, amphibian, amphibians, animal, animals, breed, breeding, car, cars, collisions, common toad, crashes, cross, crossing, crossings, fauna, herpetofauna, hibernicula, highway, highways, kill, killing, mate, mating, measures, migration, mitigation, mortalities, mortality, motorized, road, road ecology, roads, safety, season, seasonal, sign, signs, speed, spring, toad, toads, traffic, vehicles, victim, victims, warning, warning, warning, wildlife, wildlife