ATSSA Traffic Control Supervisor Re-Certification Questions And Answers.
3 vistas 0 veces vendidas
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...
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
, 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:
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
Los beneficios de comprar resúmenes en Stuvia estan en línea:
Garantiza la calidad de los comentarios
Compradores de Stuvia evaluaron más de 700.000 resúmenes. Así estas seguro que compras los mejores documentos!
Compra fácil y rápido
Puedes pagar rápidamente y en una vez con iDeal, tarjeta de crédito o con tu crédito de Stuvia. Sin tener que hacerte miembro.
Enfócate en lo más importante
Tus compañeros escriben los resúmenes. Por eso tienes la seguridad que tienes un resumen actual y confiable.
Así llegas a la conclusión rapidamente!
Preguntas frecuentes
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
100% de satisfacción garantizada: ¿Cómo funciona?
Nuestra garantía de satisfacción le asegura que siempre encontrará un documento de estudio a tu medida. Tu rellenas un formulario y nuestro equipo de atención al cliente se encarga del resto.
Who am I buying this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller techgrades. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for $11.99. You're not tied to anything after your purchase.