animal beware danger drive road safety security sheep sign street traffic travel vehicle warning yellow deer hazard ice rural snow triangle digger excavator attention change clock concentration hurry signal time watch black give isolated red way fire flame forbidden hint matchsick no pictogramm advice alert appropriate-behavior appropriate-behaviour be-careful Cacti cactus cactus-garden care careful caution communicating communication concern conditions dangerous directions informing lookout not-allowed not-permitted prohibited prohibition risk risks signs warning-sign white germany pictogram car child information slow announcement cars crossing listen Look looking observant rails railway railway-crossing trains watch-out