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ATSSA TCS MODULES 3 PARTS () QUESTIONS WITH CORRECT ANSWERS
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ATSSA TCS MODULES 3 PARTS () QUESTIONS WITH CORRECT ANSWERS
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ATSSA TCS MODULES 3 PARTS (2024-2025)QUESTIONS WITH CORRECT ANSWERS
Portable Changeable Message Signs PCMS -
<<Answers>>Most frequently used in High-density urban
freeways. Should be used as a supplement not as a substitute
for conventional signs and pavement markings. Advise road
users of unexpected situations. Message as brief as possible.
Should contain 3 thoughts.
Advance Warning Sign - <<Answers>>URBAN
business/residential: 7ft.high, RURAL:5ft high, or 4ft when
using advisory speed plaque, PORTABLE: 1ft. min.
Drum or Barrell - <<Answers>>No ballast on top. Orange
stripe on top. 18 in. diameter
Min. devices on TAPER depending on speed 25,30,35,40,45 -
<<Answers>>Speed of 25=6 devices, 30=7, 35=8, 40=9,
45=13
PCMS - <<Answers>>Placed 500-800 feet in advance of the
work zone conflicts at or 1.5 to 2 miles in advance of complex
traffic control schemes. At night, intensity of flashers reduced.
Be visible from 1/2 mile day and night.Limited 3 lines. 8
characters per line.
Portable Changeable Message Signs - <<Answers>>Be
placed off the shoulder of the roadway and behind a traffic
barrier. If barrier not available, place off the shoulder and
outside of the clear zone. If within the clear zone, delineated
with retroreflective TTC divices.
, ATSSA TCS MODULES 3 PARTS (2024-2025)
QUESTIONS WITH CORRECT ANSWERS
Messages on PCMS - <<Answers>>No more than 2 phases.
No more than 3 lines of text per phase. Yes Abbreviations. No
animation
Shielding PCMS - <<Answers>>When off, move it outside
the clear zone or shield it with a barrier of crash cushion.
Place it on shoulder or further from travel lane. Delineate with
TTC devices and/or retroreflective material a.k.a conspicuity
tape
Temporary Rumble Strips - <<Answers>>Used for flagger
situations. Intermittent, narrow, transverse areas of rough-
textured surface. Dual feedback: Sound and vibration.
Different Color than pavement. Last strip 250 ft before traffic
condition
Roundabouts - <<Answers>>Not in MUTCS. Consider
detours. If single lane, treat as flagger operation. Getting
popular
Speed - <<Answers>>Posted speed=speed limit (min) Off-
peak 85th percentile speed prior to work starting or the
anticipated operating speed. Not necessarily the posted speed
85th percentile speed - <<Answers>>The speed at or below
which 85 percent of the motor vehicles travel operating speed
in free flow conditions. Often 7-8 mph above posted speed
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