Driver's License Test Prep
Texas Practice Road Markings

You are driving on a two-lane rural road with a broken yellow center line. According to the manual, when may you cross that line?

A single broken yellow dashed line running lengthwise down the center of a dark roadway.
  1. A.
    When the driver behind you flashes their high beams
  2. B.
    When passing or the right half is closed, and it is safe Correct
  3. C.
    When the shoulder line disappears and the pavement is dry
  4. D.
    When you can see at least 500 feet of clear road ahead
The Why

The answer is "When passing or the right half is closed, and it is safe"

The manual permits crossing a broken yellow center line for two reasons only, passing another vehicle or a closed right half, and only when the crossing is safe. Drivers who pick the 500-foot answer are reaching for a passing sight-distance figure from another state's driver education material and treating it as Texas's condition for crossing the center line.

Why the others miss

The traps in the wrong answers

A. When the driver behind you flashes their high beams

A high-beam signal from the driver behind is not one of the manual's conditions for crossing a broken yellow center line; the two reasons named in Texas are passing another vehicle or a closed right half, and both still require the crossing to be safe. This answer reads a following driver's high-beam flash as courtesy clearance to move over, a trucker and highway convention that has no standing in the Texas pavement-marking rules.

C. When the shoulder line disappears and the pavement is dry

Dry pavement and a missing shoulder line are not conditions the Texas manual attaches to crossing a broken yellow center line; the manual names passing another vehicle or a closed right half, only when safe. This answer mixes a dry-pavement rule of thumb with the appearance of the shoulder stripe, stitching two comfort cues together into a permission rule the manual never gives.

D. When you can see at least 500 feet of clear road ahead

The Texas manual sets no sight-distance threshold for crossing a broken yellow line; the permission turns on the reason (passing or a closed right half) and on the crossing being safe, not on a fixed number of feet ahead. This answer borrows the 500-foot passing-zone sight-distance figure taught in driver-education rules of thumb and treats it as the Texas center-line crossing standard.

The Rule

This question tests your knowledge of Road Markings in Texas. Source: Texas Driver Manual, "Pavement Markings: Two-Lane Rural Road with Two-Way Traffic," p.33..

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