cloverleaf

Interchange with four branches where the inside loops are for turning left and the direct links for turning right.

passing lane

Far left traffic lane where faster-moving vehicles pass other traffic.

traffic lane

Part of the roadway demarcated by lines, each accommodating a single line of vehicles.

slower traffic

Far right traffic lane for slower-moving vehicles.

entrance

Start of the acceleration lane, parallel to the traffic lanes.

freeway

Large thoroughfare with separate one-way lanes and no crossing streets; reserved for high-speed traffic.

overpass

Raised part of a road or highway on which traffic flows over another highway or obstacle.

loop

Wide circular curve for moving from one highway to another in order to change direction.

ramp

Connecting lane between two highways or between a road and a highway for changing direction.

highway

Communications route connecting two distant geographic points, usually urban centers.

median

Strip of land separating two roadways leading in opposite directions.

exit

Start of the ramp for vehicles leaving the freeway.

broken line

Line demarcating the two lanes of the roadway and showing that passing is permitted.

deceleration lane

Temporary lane where vehicles slow down after leaving the traffic lanes.

side lane

Temporary lane for vehicles intending to enter or exit the main lanes.

island

Groomed land between the various lanes of an interchange.

traffic lanes

Parts of the roadway demarcated by lines, each accommodating a single line of vehicles.

transfer ramp

End of the ramp where it meets the highway entrance.

acceleration lane

Temporary lane where vehicles entering the freeway gain speed in order to safely merge into the traffic lane.