Practice question

Under Caltrans Standard Plan T10, what temporary traffic control layout is specified for lane closures on two-lane conventional highways?

  1. Flagger control at each end of the single-lane section with 50-100 ft tapers.
  2. Dual arrow boards flashing left arrows in both directions simultaneously only.
  3. Type III barricades blocking both lanes with detour signs installed.
  4. Automated radar speed displays placed at 50-foot intervals.

Answer: A — Flagger control at each end of the single-lane section with 50-100 ft tapers.

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