Question

which three components make up the highway transportation system?
roadway users, vehicles, and roadways
law enforcement, drivers, and passengers
national, state, and city roads
lanes, traffic signs, and road markings

Explanation:

The Highway Transportation System (HTS) consists of three main components. Roadway users are the people who use the system (drivers, pedestrians, etc.). Vehicles are the means of transportation (cars, trucks, etc.). Roadways are the physical infrastructure (roads, highways, etc.). The other options are either subsets or not the main components. For example, law enforcement is part of the regulation within HTS but not a main component. National, state, and city roads are types of roadways but not the three - component breakdown. Lanes, traffic signs, and road markings are elements of roadways.

Answer:

roadway users, vehicles, and roadways