background
blue
caution
city
crossing
crosswalk
danger
direction
elementary
empty
footpath
guidance
highway
information
journey
mark
metal
nobody
outdoors
pedestrian
poland
pole
precaution
restrict
road
roadside
route
run
safe
safety
scene
sign
signal
simple
single
sky
speed
street
symbol
town
traffic
transport
transportation
travel
triangle
urban
walking
warning
yellow