alberta
alert
barricade
beware
block
bridge
canada
caution
close
closure
collapse
construction
danger
delay
deserted
detour
direction
drive
enforce
freeway
give way
guide
highway
impasse
intersection
law
machinery
maintenance
motorway
orange
proceed
rectangle
reduce
reflective
repair
right of way
road
roadside
roadway
sign
slow
stripped
traffic
transportation
unrated
warning
yield