ATSSA TRAFFIC CONTROL SUPERVISOR RE-CERTIFICATION
ACTUAL 2026 QUESTIONS AND VERIFIED ANSWERS Questions with
Correct Solutions
Question:
1. ATSSA Traffic Control Supervisor Re-certification
Answer:
Exam Coverage Exam coverage for the ATSSA Traffic Control Supervisor Re-certification
includes advanced work zone safety and traffic management principles required to maintain
certification through the American Traffic Safety Services Association. It focuses on
temporary traffic control planning, work zone setup and layout, traffic control devices (signs,
cones, barricades, channelizing devices), and MUTCD compliance standards. The exam also
evaluates understanding of flagging operations, supervisor responsibilities, hazard
identification, and incident prevention in roadway environments. Emphasis is placed on
maintaining safe and compliant work zones, applying updated traffic control standards,
supervising field operations effectively, and ensuring protection of workers, motorists, and
pedestrians in construction and =§ =Ø maintenance areas.
Question:
2. 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
Question:
3. 125'
Answer:
Distance of L for 25 MPH with 12' Lane width
Question:
4. 245'
Answer:
Distance of L for 35 MPH with 12' Lane width
Question:
5. 540'
Answer:
Distance of L for 45 MPH with 12' Lane width
, Question:
6. 660'
Answer:
Distance of L for 55 MPH with 12' Lane width
Question:
7. L=(WS²)/60 for 40MPH or less, L=WS for 45MPH or more
Answer:
Formula for Min. taper length
Question:
8. 780'
Answer:
Distance of L for 65 MPH 12' Lane width
Question:
9. L Minimum
Answer:
Merging Taper Length
Question:
10. 1/2 L Minimum
Answer:
Shifting Taper Length
Question:
11. 1/3 L Minimum
Answer:
Shoulder Taper Length
Question:
12. 50'-100' regardless of speed 6 devices 10'-20' apart
Answer:
One-Lane, Two-Way Taper (Flagger taper) Length and number of devices
Question:
13. 50'-100' per lane
ACTUAL 2026 QUESTIONS AND VERIFIED ANSWERS Questions with
Correct Solutions
Question:
1. ATSSA Traffic Control Supervisor Re-certification
Answer:
Exam Coverage Exam coverage for the ATSSA Traffic Control Supervisor Re-certification
includes advanced work zone safety and traffic management principles required to maintain
certification through the American Traffic Safety Services Association. It focuses on
temporary traffic control planning, work zone setup and layout, traffic control devices (signs,
cones, barricades, channelizing devices), and MUTCD compliance standards. The exam also
evaluates understanding of flagging operations, supervisor responsibilities, hazard
identification, and incident prevention in roadway environments. Emphasis is placed on
maintaining safe and compliant work zones, applying updated traffic control standards,
supervising field operations effectively, and ensuring protection of workers, motorists, and
pedestrians in construction and =§ =Ø maintenance areas.
Question:
2. 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
Question:
3. 125'
Answer:
Distance of L for 25 MPH with 12' Lane width
Question:
4. 245'
Answer:
Distance of L for 35 MPH with 12' Lane width
Question:
5. 540'
Answer:
Distance of L for 45 MPH with 12' Lane width
, Question:
6. 660'
Answer:
Distance of L for 55 MPH with 12' Lane width
Question:
7. L=(WS²)/60 for 40MPH or less, L=WS for 45MPH or more
Answer:
Formula for Min. taper length
Question:
8. 780'
Answer:
Distance of L for 65 MPH 12' Lane width
Question:
9. L Minimum
Answer:
Merging Taper Length
Question:
10. 1/2 L Minimum
Answer:
Shifting Taper Length
Question:
11. 1/3 L Minimum
Answer:
Shoulder Taper Length
Question:
12. 50'-100' regardless of speed 6 devices 10'-20' apart
Answer:
One-Lane, Two-Way Taper (Flagger taper) Length and number of devices
Question:
13. 50'-100' per lane
