IMSA Workzone Questions and Correct
Answers/ Latest Update / Already Graded
The work zone starts at the first advance warning sign; therefore,
where should the flagger stand when directing traffic in a TTC zone?
Ans: On the shoulder adjacent to traffic being controlled
How many orange and black TTC signs should there be in each
direction on a 2-way, 2-lane rural roadway?
Ans: three
What should the sign spacing be on a two-lane, two-way rural
highway?
Ans: 500 ft.
How many feet apart should the advanced warning signs be on a high
speed urban roadway?
Ans: 350 ft
For additional emphasis on a high speed urban roadway, signs may be
posted: _________
Ans: on the left hand side of the highway
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Taper length refers to:
Ans: The distance required to safely route traffic from one lane
to another
taper length is based on:
Ans: speed and width of lane closed
in a taper, the maximum distance between channelizing devices should
be:
Ans: equal in feet to the speed limit
on a barricade, if the stripes start at the upper right side and angle
down to the lower left side: ________
Ans: traffic should pass to the left
at night and/or on high speed roads greater than 45 mph, cones shall
be: __________
Ans: at least 28" tall and retroreflectorized with at least two
white bands and two orange bands
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one a rural two-lane road, where would you place the flagger in respect
to the beginning of the taper for a closed lane?
Ans: at the beginning of the taper
What are some factors that should be considered in formulating a TTC
plan?
Ans: 1) Type of work to be done
2) traffic volume
3) traffic speed
4) school bus routes
the rerouting of traffic onto a temporary bypass road is known as a:
__________
Ans: diversion
pavement markings no longer needed should be:
Ans: removed by grinding
a TTC zone should be checked:
Ans: routinely
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