Atssa Traffic Control Supervisor Re-Certification (Missing Some Basics) |53 Questions| With Correct Answers.

Moved outside the clear zone or be shielded by barrier or crash cushion placed on the shoulder or further from the traveled lane delineated with retroreflective material in a continuous line {Ans: when not in use, where should a PCMS be? portable changeable message sign}660' {Ans: Distance of L for 55 MPH with 12' Lane width}2L {Ans: Tangent distance (between tapers)}The off peak 85th percentile. Which is the speed at or below which 85% of vehicles travel operating speed in free flow conditions {Ans: speed used in formulas should be}540' {Ans: Distance of L for 45 MPH with 12' Lane width}A: Low intensity flashing B: High-intensity flashing C: Steady Burn D: 360° steady burn {Ans: Warning lights types: Type A: Type B: Type C: Type D:}