attention beware blue careful caution child conduct control course danger drive guide happen highway industry kids law limit Look pedestrian pedestrians people playground playing protection respect road school sidewalk sign slow street symbol teen traffic transportation walk warning way zone activity at blank build building construction council dig digging hazard industrial information man manual men metal repair repairing roadworks rope safety site triangle urban wall white wood work worker works alert alternative-way announcement arrow be-careful black blocked blocked-path care communicating communication detour directing direction discoloration go-around informing lookout message observant observe security watch watch-out wording words yellow appreciated appropriate-behavior appropriate-behaviour area black-&-white cigarettes environment gray grey greyscale health health-risk no-smoking not-allowed not-permitted permission-denied pollution prohibited prohibition thanks unhealthy cautionary cautionary-entrance-tape cautionary-tape Dirt discarded fallen ground plastic tape directions instructions logo mother path pictogram roadsign woman advice advising animal canine canine-guard communicate dog guard-dog lettering letters mammal no-entry risk risky warned bollard burn christ colour cross death earth Easter ecology equator flame geography globe green insect jesus ladybug leaf outline planet protect rise from the dead shape sphere umbrella under construction comgrap01 cutter cutting equipment grass grass-cutter grass-cutting groundsman landscaping lawn lawn-care lawn-mower lawn-mowing machine machinery maintenance mobile motor-mower motorised motorized park power public-area rotary-mower signage workman