asphalt
auto
bay
booth
boundary
bridge
bus
car
carpool
cash
congestions
down
empty
entrance
fee
freeway
highway
interstate
jam
nobody
outdoors
pay
paying
plaza
road
road tax
roadway
route
row
running
san
station
street
stress
structure
tax
thoroughfare
toll
toll booth
toll plaza
tollway
town
track
traffic
transportation
travel
truck
turnpike
vehicle
waiting