Collecting taxes is a responsibility of the federal and state governments, not local government.

Buses are the most common form of public transportation in cities, as they are relatively inexpensive to operate and can be used on a variety of routes.

Expressways are not a type of road, but rather a type of highway.

Traffic signals are used to control the flow of traffic at intersections and to prevent accidents.

The maximum speed limit on most highways in the United States is 70 mph.

The primary responsibility of a local transportation agency is to plan and construct transportation infrastructure, such as roads, bridges, and public transportation systems.

Ferries are not a type of public transportation, but rather a type of watercraft.

Crosswalks are used to allow pedestrians to cross the street safely.

The maximum speed limit in school zones is 20 mph.

Traffic roundabouts are used to reduce traffic congestion and improve safety.

County highways are not a type of highway, but rather a type of road.

Traffic lights are used to control the flow of traffic at intersections and to prevent accidents.

The maximum speed limit on most residential streets is 25 mph.

Medians are used to separate opposing lanes of traffic and to prevent head-on collisions.