ATSSA Traffic Control Supervisor Re-certification Questions with Verified Answers GRADED A+ 2024/2025

ATSSA Traffic Control Supervisor Re-certification Questions with Verified Answers GRADED A+ 2024/2025 L=(WS²)/60 for 40MPH or less, L=WS for 45MPH or more - Correct Answer Formula for Min. taper length The off peak 85th percentile. Which is the speed at or below which 85% of vehicles travel operating speed in free flow conditions - Correct Answer speed used in formulas should be 125' - Correct Answer Distance of L for 25 MPH with 12' Lane width 245' - Correct Answer Distance of L for 35 MPH with 12' Lane width 540' - Correct Answer Distance of L for 45 MPH with 12' Lane width 660' - Correct Answer Distance of L for 55 MPH with 12' Lane width 780' - Correct Answer Distance of L for 65 MPH 12' Lane width L Minimum - Correct Answer Merging Taper Length 1/2 L Minimum - Correct Answer Shifting Taper Length 1/3 L Minimum - Correct Answer Shoulder Taper Length 50'-100' regardless of speed 6 devices 10'-20' apart - Correct Answer One-Lane, Two-Way Taper (Flagger taper) Length and number of devices 50'-100' per lane - Correct Answer Downstream taper Length 2L - Correct Answer Tangent distance (between tapers) 1/2L - Correct Answer Tangent distance before shifting taper Buffer Space Work Space Traffic Space - Correct Answer Activity Area Sub-components (3) Recovery Area for errant vehicles: Forgiving design Protects worker