advice
alert
area
asphalt
attention
caution
city
construction
danger
day
daylight
daytime
digging
disruption
equipment
illustration
improvement
industry
information
infrastructure
man
notice
obstacle
obstruction
outdoors
prevention
protection
repair
repairing
restriction
road
safety
shovel
sidewalk
sign
signage
signal
signpost
silhouette
street
symbol
temporary
tool
town
traffic
triangle
triangular
urban
warning
works