2023-2024 ATSSA Practice Exam With Answers (56 Solved Questions)

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ATSSA Traffic Control Supervisor Re-certification 100% VERIFIED ANSWERS 2023/2024 L=(WS²)/60 for 40MPH or less, L=WS for 45MPH or more - 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 - speed used in formulas should be 125' - Distance of L for 25 MPH with 12' Lane width 245' - Distance of L for 35 MPH with 12' Lane width 540' - Distance of L for 45 MPH with 12' Lane width 660' - Distance of L for 55 MPH with 12' Lane width 780' - Distance of L for 65 MPH 12' Lane width L Minimum - Merging Taper Length 1/2 L Minimum - Shifting Taper Length 1/3 L Minimum - Shoulder Taper Length 50'-100' regardless of speed 6 devices 10'-20' apart - One-Lane, Two-Way Taper (Flagger taper) Length and number of devices 50'-100' per lane - Downstream taper Length 2L - Tangent distance (between tapers) 1/2L - Tangent distance before shifting taper Buffer Space Work Space Traffic Space - Activity Area Sub-components (3) Recovery Area for errant vehicles: Forgiving design
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