ATSSA Traffic Control Supervisor Re-certification (missing some basics) Exam 2025/2026 Questions With Completed Solutions.

ATSSA Traffic Control Supervisor Re-certification (missing
some basics)

*M*anual for
*A*ssessing
*S*afety
*H*ardware
MASH - ANS -NCHRP 350 rewritten by AASHTO and is now an AASHTO document called what?
\1 Mile
50%
shoulder at beginning of taper if possible, if not, as close to beginning as possible inside taper. - ANS -Arrow board
visibility distance by design:
night time dimming:
location:
\1/2 L Minimum - ANS -Shifting Taper Length
\1/2 mile visibility day and night - ANS -how far should a PCMS be visible?
Portable changeable message sign
\1/2L - ANS -Tangent distance before shifting taper
\1/3 L Minimum - ANS -Shoulder Taper Length
\100' - ANS -Recommended Advanced Warning Sign Spaceing: Urban (low speed)
\1000', 1500', and 2640' - ANS -Recommended Advanced Warning Sign Spaceing: freeways and expressways (3)
\125' - ANS -Distance of L for 25 MPH with 12' Lane width
\125' 245' 540' 660' 780' - ANS -Distance of L with 12' Lane Width for:\
25, 35, 45, 55, 65 MPH
\18:1 - ANS -Typical Flare Rates for Barrier Rail - 60 MPH
\2 or 3 - ANS -All workers, including emergency responders, within the right-of-way who are exposed either to

, traffic (vehicles using the highway for purposes of travel) or to work vehicles and construction equipment
within the TTC zone shall wear high-visibility safety apparel that meets the Performance Class ___ or ___.
\20:1 - ANS -Typical Flare Rates for Barrier Rail - 70 MPH
\245' - ANS -Distance of L for 35 MPH with 12' Lane width
\2L - ANS -Tangent distance (between tapers)
\350' - ANS -Recommended Advanced Warning Sign Spaceing: urban (high speed)
\50'-100' per lane - ANS -Downstream taper Length
\50'-100' regardless of speed
6 devices 10'-20' apart - ANS -One-Lane, Two-Way Taper (Flagger taper) Length and number of devices
\500' - ANS -Recommended Advanced Warning Sign Spaceing: Rural
\540' - ANS -Distance of L for 45 MPH with 12' Lane width
\60" - ANS -Proper width for pedestrian pathway:
\660' - ANS -Distance of L for 55 MPH with 12' Lane width
\780' - ANS -Distance of L for 65 MPH 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:
\Appropriately flared or protected with properly installed crash cushions - ANS -The blunt end of a barrier is a hazard.
*ALL* upstream leading ends shall be:
\Barrier deflection - ANS -the distance a barrier will displace when struck
\Buffer Space
Work Space
Traffic Space - ANS -Activity Area Sub-components (3)
\channel