Atssa Traffic Control Supervisor Re-Certification (Missing Some Basics) Exam Questions (53 Terms) With Verified Definitions Updated 2024

Decrease by 2:1 per 5 MPH stopping at 30 MPH with 8:1 {Ans: Below 60 MPH Barrier Flare Rates Decrease by}20:1 {Ans: Typical Flare Rates for Barrier Rail - 70 MPH}Buffer Space Work Space Traffic Space {Ans: Activity Area Sub-components (3)}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:}Decelerate the vehicle to a stop {Ans: stationary non-redirective Impact Attenuators do what?}portable concrete barriers {Ans: less expensive for long-term projects, easy to maintain, reusable, low deflection. Heavy equipment needed for installation.}540' {Ans: Distance of L for 45 MPH with 12' Lane width}500' {Ans: Recommended Advanced Warning Sign Spaceing: Rural}1/2 mile visibility day and night {Ans: how far should a PCMS be visible? Portable changeable message sign}Recovery Area for errant vehicles: Forgiving design Protects workers and Motorists Always completely empty or clear No vehicles, truck-mounted attenuator, equipment, or materials STRONGLY RECOMMENDED: unless there is a documented reason not to {Ans: Longitudinal Buffer Space}concrete, water-filled, anchored, move-able, mobile, steel {Ans: types of temporary traffic barriers}speed, traffic volume / composition, road classification, deflection space, roadway alignment,