ATSSA Traffic Control Supervisor Re-certification With Questions And Correct Answers Already Graded A

ATSSA Traffic Control Supervisor Re-certification With
Questions And Correct Answers Already Graded A

Decelerate the vehicle to a stop - ANSWER>>stationary non-redirective Impact Attenuators do
what?


Minimum of 30" - ANSWER>>Impact Barrels should overlap the fixed object on the
traffic side by:


Stationing
0+00' - ANSWER>>A conventional way of identifying distances on the plan and on the
ground. Located every hundred feet.


Cones at least 28" with 2 white retroreflective bands flaggers
properly illuminater
controlled glare
proper apparel (recommended class 3) - ANSWER>>Nighttime checklist


60" - ANSWER>>Proper width for pedestrian pathway:


provide a 60"x60" passing area for wheelchairs every 200' - ANSWER>>When it is not
possible to maintain proper pathway width provide what?


temporary traffic barriers - ANSWER>>If significant threat of vehicle incursions into
temporary pedestrian pathways ___________ should be installed.


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