ATSSA Traffic Control Supervisor Re-certification (missing some basics)Accurate 100%

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