Florida Class E Knowledge ExamFlorida Road SignsMedium

You are driving on a Florida road and see a rectangular white sign with a black arrow pointing straight up, with the words 'THRU TRAFFIC' above it. What does this sign indicate?

  1. AThis lane is for vehicles continuing straight through the intersection.
  2. BThis sign indicates a detour for through traffic.
  3. CThis lane is for vehicles that wish to turn left or right, but not go straight.
  4. DThis is a warning that the road ahead is closed to through traffic.
Show answer & explanation

Correct answer: A. This lane is for vehicles continuing straight through the intersection.

This is a regulatory lane-use sign. The arrow pointing straight up with 'THRU TRAFFIC' indicates that the lane is designated for vehicles proceeding straight through the upcoming intersection or section of roadway.

Why the other options are wrong

  • B. Detour signs are typically orange or black on white and use 'DETOUR' or specific route numbers.
  • C. Turn-only lanes would have arrows indicating turns and often 'LEFT LANE MUST TURN LEFT'.
  • D. Road closed signs are usually red and white or orange and black, and explicitly state 'ROAD CLOSED'.

Thru Traffic Lane Sign

A regulatory sign indicating that a specific lane is designated for vehicles that intend to proceed straight through an intersection or continue on the main roadway.

  • White rectangular sign with black text and/or arrow.
  • Indicates lane usage for straight-ahead movement.
  • Helps manage traffic flow at complex intersections.

Memory trick: Lane signs tell you where to go, follow the arrows, watch the flow.

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