ATSSA TRAFFIC SUPERVISOR QUESTIONS AND ANSWERS COMPLETE STUDY GUIDE FOR TRAFFIC CONTROL AND WORK ZONE SAFETY

ATSSA TRAFFIC SUPERVISOR MULTIPLECHOICE SOLUTION 338 QUESTIONS AND ANSWER FOR
FREE 2026
Is a shadow vehicle used in all traffic zones?

A. True

B. False - the correct answer is False



The shadow vehicle is occupied whenever workers are in the work area.

A. True

B. False - the correct answer is False



What class one light is the shadow vehicle equipped with?

A. Flashing Yellow Light

B. Oscillating Yellow Light

C. Yellow Strobe Light

D. All of the above - the correct answer is All of the above



When may cones be substituted for drums?

A. Daytime traffic control minimum height 18"

B. Daytime traffic control minimum height 28"

C. Daytime traffic control minimum height 36"

D. Daytime traffic control minimum height 42" - the correct answer is Daytime traffic control minimum

height 28"



When may cones be substituted for drums?

A. Daytime traffic control minimum height 18"

B. Daytime traffic control minimum height 28"

,C. Daytime traffic control minimum height 36"
D. Daytime traffic control minimum height 42" - the correct answer is Daytime traffic control minimum
height 28"



When cones are substituted for drums for nighttime closers, what is the minimum cone height
requirement?

A. 18"

B. 28"

C. 36"

D. 42" - the correct answer is 42"



When cones are substituted for drums at nighttime closer, what is the maximum cone spacing?

A. 20'

B. 30'

C. 40'

D. 50' - the correct answer is

40'



What type of flashing warning lights are required when there is a nighttime lane closer?

A. ROAD WORK AHEAD

B. LANE CLOSED AHEAD

C. A & B

D. NONE OF THE ABOVE - the correct answer is ROAD WORK AHEAD

&

LANE CLOSED AHEAD



If there is a lane closure of greater than three days, what is required?

,A. Work zone dotted lines, 4' in length separated by 10' gaps, shall be provided to identify the merge.

B. The appropriate color work zone edge lines shall be applied along the taper and tangent sections.

C. All the above
D. None of the above - the correct answer is The appropriate color work zone edge lines shall be applied
along the taper and tangent sections.



Work zone pavement marking that conflict with final traffic lanes shall be temporary paint.

A. True

B. False - the correct answer is False



What are the extra advance warning signs?

A. Lane Close Ahead

B. Watch for Stopped Traffic

C. Road Work Ahead

D. All the above - the correct answer is Lane Change Ahead

&

Watch for Stopped Traffic

&

Road Work Ahead



Is the advisory speed plaque used in all traffic zones?

A. True

B. False - the correct answer is False



When the approach speed limit is 40 mph or less, 36" warning signs may be used.

A. True

, B. False - the correct answer is True



Road Work Ahead signs shall be provided on entrance ramps or roadways entering the work limits.

A. True

B. False - the correct answer is True



End Road Work signs are only required for lane closures of more than ______ day.

A. 1

B. 2

C. 3

D 4 - the correct answer is

1



Sign spacing should be adjusted to avoid conflict with existing signs, minimum spacing to existing signs
shall be 200' for speeds of 45 mph or less and a minimum of 400' for speeds 50 mph or greater.

A. True

B. False - the correct answer is True



The minimum acceptable length for the merge taper shall be determined by _________ the width of the
offset by the merge taper rate.

A. Subtracting

B. Adding

C. Divide

D. Multiplying - the correct answer is

Multiplying



The tangent (recovery area) section between the two merge tapers should be 2 times longer of the two
merge tapers.