Driver's License Test Prep
Pennsylvania Practice Road Markings

The word ONLY is painted on the pavement next to a left-pointing arrow. What does this marking mean?

  1. A.
    The lane is a carpool lane for vehicles with passengers.
  2. B.
    Drivers in the lane may go straight or turn left.
  3. C.
    The lane is closed to through traffic during work hours.
  4. D.
    The lane is reserved for left turns from that lane. Correct
The Why

The answer is "The lane is reserved for left turns from that lane."

ONLY paired with a directional arrow reserves the lane for movement in that direction, so a left arrow restricts the lane to left turns from that lane. Drivers who pick "straight or left" are half-remembering the combined through-and-left arrow used at some intersections; the word ONLY strips that combined option away and leaves only the turn.

Why the others miss

The traps in the wrong answers

A. The lane is a carpool lane for vehicles with passengers.

Carpool lanes carry diamond symbols and HOV signage, not ONLY with a turn arrow. This answer reads the exclusivity of ONLY as marking a restricted-access carpool lane rather than as restricting the permitted movement in the lane.

B. Drivers in the lane may go straight or turn left.

ONLY removes the straight-through option; the arrow is the sole permitted move. This answer half-remembers the combined through-and-left arrow used at some intersections and treats ONLY as expanding, not restricting, the lane's permitted moves.

C. The lane is closed to through traffic during work hours.

Work-zone lane closures are marked with orange cones and warning signs, not this legend. This answer extends ONLY into a time-of-day rule, borrowing the pattern from work-zone signs that limit lane use during working hours.

The Rule

This question tests your knowledge of Road Markings in Pennsylvania. Source: Pennsylvania Driver Manual, "Pavement Markings," p.22..

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