Texas Driver's License Knowledge TestTraffic Signs and SignalsMedium

A motorist is driving on a multi-lane highway and observes a rectangular white sign with the words 'SLOWER TRAFFIC KEEP RIGHT' posted above the rightmost lane. What does this sign indicate?

  1. AThe right lane is about to end, and drivers should prepare to merge.
  2. BThe right lane is designated for commercial trucks only.
  3. CAll vehicles must merge left at the next intersection.
  4. DVehicles traveling below the normal speed of traffic should use the right lane.
Show answer & explanation

Correct answer: D. Vehicles traveling below the normal speed of traffic should use the right lane.

The 'SLOWER TRAFFIC KEEP RIGHT' sign is a regulatory sign that instructs drivers of vehicles traveling slower than the general flow of traffic to use the right-hand lane. This promotes smoother traffic flow and reduces congestion.

Why the other options are wrong

  • A. A 'Right Lane Ends' or similar warning sign would indicate an impending merge, not this regulatory sign.
  • B. This sign does not designate lanes for specific vehicle types like trucks.
  • C. The sign indicates lane usage based on speed, not a mandatory merge.

Slower Traffic Keep Right Sign

A white rectangular regulatory sign indicating that drivers traveling slower than the prevailing speed of traffic should use the rightmost lane.

  • It is a regulatory sign (white rectangle).
  • Aims to improve traffic flow and safety.
  • Applies to multi-lane highways where passing is permitted.

Memory trick: Regulate your speed, stay right if slow.

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