attention danger germany isolated pictogram safety sign traffic uneven road warning canada canadian crooked direction France french name quebec road road sign rue rue saint paul straight street street sign uneven asphalt bitumen broken cracked cracks damage damaged damaging dangerous dry gravel hole holes pothole potholes risk risky rough surface surfaces tarmac appropriate-behavior appropriate-behaviour black blue bollards care careful caution changes changing communicating communication cones delineators directive footpath information informing message red road-junction road-sign road-surface roads roadside signage signs slow-down slower speed-reduction street-sign T-junction temporary thoroughfare traffic-cones traffic-flow uneven-surfaces white witches-hats wording words circular cloud-formation clouds concrete construction curb curbing curbs edging fill infrastructure public-space roundabout sand street-lighting surfacing traffic-control trees mobile-lighting