abstract
area
asphalt
background
black
city
clean
contrast
cross
crosswalk
driveway
grunge
highway
lane
law
line
mark
outdoor
pattern
pavement
pedestrian
perspective
risk
road
roadway
safe
safety
secure
sidewalk
sign
signal
simple
stop
street
strip
stripe
striped
surface
symbol
texture
town
traffic
transport
urban
walk
walkway
way
white
zebra