abstract
abstraction
aiming
asphalt
attention
background
belts
broken
city
coating
code
continuous
dirty
distance
double
goal
grass
gray
highway
intersection
justice
law
levels
line
mottled
movement
pattern
pavement
perspective
priority
racing
restriction
ride
roadway
roundabout
rule
safety
segments
sign
single
straight
tar
tear
tournament
trail
triangle
way
white
yield
zebra