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ATSSA Traffic Control Supervisor Re-Certification Questions And Answers.

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  • Grado
  • ATSSA Traffic Control Supervisor
  • Institución
  • ATSSA Traffic Control Supervisor

ATSSA Traffic Control Supervisor Re-Certification Questions And Answers. 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 fr...

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  • 18 de septiembre de 2024
  • 5
  • 2024/2025
  • Examen
  • Preguntas y respuestas
  • ATSSA Traffic Control Supervisor
  • ATSSA Traffic Control Supervisor
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ATSSA Traffic Control Supervisor Re-
Certification Questions And Answers.

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 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 - correct
answer.Longitudinal Buffer Space

Where road users are returned to their normal path
extends from the downstream end of the work area to the last device such as end work
zone sign
May contain:
end work zone sign: usually 500' past last device
downstream taper = 50'-100' per lane - correct answer.Termination Area is:

can contain: (2)

100' - correct answer.Recommended Advanced Warning Sign Spaceing: Urban (low
speed)

350' - correct answer.Recommended Advanced Warning Sign Spaceing: urban (high
speed)

500' - correct answer.Recommended Advanced Warning Sign Spaceing: Rural

1000', 1500', and 2640' - correct answer.Recommended Advanced Warning Sign
Spaceing: freeways and expressways (3)

1 Mile
50%
shoulder at beginning of taper if possible, if not, as close to beginning as possible inside
taper. - correct answer.Arrow board visibility distance by design:
night time dimming:
location:

taper: not to exceed distance in feet = to posted speed limit
tangent: distance = double posted speed limit - correct answer.device spacing taper:
tangent:

A: Low intensity flashing

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