,SECTION 1: WORK ZONE SAFETY & TRAFFIC CONTROL
1. An Area Supervisor is inspecting a roadway after a winter storm and discovers that a heavily
traveled lane has developed a deep pothole approximately 8 inches in diameter and several inches
deep. The defect presents an immediate hazard to motorists. What should be the supervisor's FIRST
priority?
A. Schedule the pothole for routine resurfacing next month
B. Document the defect and wait for the next scheduled maintenance crew
C. Protect the traveling public by arranging appropriate warning, traffic control, and prompt corrective
action
D. Determine which employee caused the pothole before taking action
Correct Answer: C
Rationale: The primary responsibility is public safety. A significant roadway defect that creates an
immediate hazard should be protected through appropriate traffic control and addressed promptly.
Investigation of causes and longer-term repair planning can follow after the immediate hazard is
controlled.
2. A supervisor assigns a crew to perform roadway repairs on a busy arterial street. Before the work
begins, several employees enter the work area without establishing the required warning devices and
traffic-control measures. What is the most appropriate supervisory response?
A. Allow the work to continue because the employees are experienced
B. Stop or control the operation until appropriate traffic protection is established
C. Tell employees to work faster so they spend less time exposed to traffic
D. Permit employees to decide individually where warning devices should be placed
Correct Answer: B
Rationale: Work-zone safety must be established before employees are exposed to roadway traffic
hazards. A supervisor must ensure that appropriate traffic-control measures are in place and that
employees follow established procedures. Production should never take precedence over basic safety
controls.
3. During a night operation, a maintenance crew is working within a roadway work zone. Which factor
is particularly important when evaluating whether the work area is adequately protected?
A. Whether employees are wearing ordinary dark-colored clothing
B. Whether traffic-control devices, warning signs, lighting, and high-visibility apparel provide adequate
visibility
C. Whether the crew has completed its paperwork before beginning work
D. Whether the equipment is parked as close as possible to moving traffic
Correct Answer: B
Rationale: Nighttime highway maintenance significantly increases visibility challenges. Proper traffic-
,control devices, lighting, positioning of equipment, and high-visibility apparel are essential components
of protecting workers and motorists.
4. A maintenance crew is assigned to perform roadway patching on a busy arterial. Before work
begins, the Area Supervisor reviews the work area, traffic conditions, crew composition, equipment,
and planned work method. Which principle is most important when establishing the work plan?
A. Maximizing the amount of pavement repaired regardless of traffic conditions
B. Completing the work as quickly as possible even if traffic control is inadequate
C. Coordinating production, worker safety, public safety, equipment, materials, and traffic control
D. Allowing individual workers to determine the safest traffic-control arrangement after arriving
Correct Answer: C
Rationale: Effective highway supervision requires balancing productivity with safety and operational
requirements. A sound work plan considers the work activity, hazards, personnel, equipment, materials,
traffic exposure, weather, and required traffic-control measures before work begins.
5. During a roadway repair operation, a supervisor observes that warning devices have been placed
too close to the work area, creating inadequate advance warning for approaching motorists. What is
the supervisor's BEST initial action?
A. Continue work and adjust devices later
B. Stop work and reposition warning devices to provide adequate advance warning
C. Ignore the issue since workers are present
D. Reduce crew size to compensate
Correct Answer: B
Rationale: Adequate advance warning is critical to work-zone safety. Warning devices must be
positioned to give motorists sufficient time to react and adjust their driving behavior. Work must be
stopped until proper protection is established.
6. What is the primary purpose of traffic control devices in a work zone?
A. To decorate the work area
B. To provide adequate warning and guidance to motorists and protect workers
C. To slow down traffic for no reason
D. To increase project costs
Correct Answer: B
Rationale: Traffic control devices are used to warn motorists of upcoming work zones, guide them safely
through or around the work area, and protect workers from traffic hazards.
, 7. A crew is assigned to repair a pothole on a heavily traveled roadway. Before work begins, traffic is
moving at high speed immediately adjacent to the work area. What is the most important supervisory
consideration?
A. Completing the repair as quickly as possible regardless of traffic controls
B. Establishing appropriate work-zone protection before exposing workers to traffic
C. Parking all equipment directly in the travel lane
D. Allowing workers to determine their own traffic-control procedures
Correct Answer: B
Rationale: Worker and public safety must be established before maintenance personnel enter an active
roadway. Proper work-zone protection separates workers from moving traffic and provides motorists
with adequate warning and guidance.
8. A supervisor observes that a crew is not wearing required high-visibility apparel during daytime
operations. What should the supervisor do?
A. Allow work to continue
B. Stop work and require proper PPE before continuing
C. Provide the apparel at the end of the shift
D. Ignore the issue if it is daytime
Correct Answer: B
Rationale: High-visibility apparel is a mandatory safety requirement for workers in roadway work zones,
regardless of time of day. The supervisor must ensure compliance before work continues.
9. During a highway maintenance operation on a busy urban roadway, a supervisor notices that
workers have entered the work area without a clearly established separation from moving traffic.
What should the supervisor do first?
A. Allow the work to continue because the workers are wearing high-visibility clothing
B. Stop work and establish proper traffic control and separation
C. Continue work but tell workers to be more careful
D. Document the issue and address it at the end of the shift
Correct Answer: B
Rationale: Work-zone safety must be established before employees are exposed to roadway traffic
hazards. A supervisor must ensure appropriate traffic-control measures are in place and that employees
follow established procedures.
10. What is the primary objective of a work zone?
A. Address an immediate roadway hazard while protecting workers and motorists
B. Maximize productivity
1. An Area Supervisor is inspecting a roadway after a winter storm and discovers that a heavily
traveled lane has developed a deep pothole approximately 8 inches in diameter and several inches
deep. The defect presents an immediate hazard to motorists. What should be the supervisor's FIRST
priority?
A. Schedule the pothole for routine resurfacing next month
B. Document the defect and wait for the next scheduled maintenance crew
C. Protect the traveling public by arranging appropriate warning, traffic control, and prompt corrective
action
D. Determine which employee caused the pothole before taking action
Correct Answer: C
Rationale: The primary responsibility is public safety. A significant roadway defect that creates an
immediate hazard should be protected through appropriate traffic control and addressed promptly.
Investigation of causes and longer-term repair planning can follow after the immediate hazard is
controlled.
2. A supervisor assigns a crew to perform roadway repairs on a busy arterial street. Before the work
begins, several employees enter the work area without establishing the required warning devices and
traffic-control measures. What is the most appropriate supervisory response?
A. Allow the work to continue because the employees are experienced
B. Stop or control the operation until appropriate traffic protection is established
C. Tell employees to work faster so they spend less time exposed to traffic
D. Permit employees to decide individually where warning devices should be placed
Correct Answer: B
Rationale: Work-zone safety must be established before employees are exposed to roadway traffic
hazards. A supervisor must ensure that appropriate traffic-control measures are in place and that
employees follow established procedures. Production should never take precedence over basic safety
controls.
3. During a night operation, a maintenance crew is working within a roadway work zone. Which factor
is particularly important when evaluating whether the work area is adequately protected?
A. Whether employees are wearing ordinary dark-colored clothing
B. Whether traffic-control devices, warning signs, lighting, and high-visibility apparel provide adequate
visibility
C. Whether the crew has completed its paperwork before beginning work
D. Whether the equipment is parked as close as possible to moving traffic
Correct Answer: B
Rationale: Nighttime highway maintenance significantly increases visibility challenges. Proper traffic-
,control devices, lighting, positioning of equipment, and high-visibility apparel are essential components
of protecting workers and motorists.
4. A maintenance crew is assigned to perform roadway patching on a busy arterial. Before work
begins, the Area Supervisor reviews the work area, traffic conditions, crew composition, equipment,
and planned work method. Which principle is most important when establishing the work plan?
A. Maximizing the amount of pavement repaired regardless of traffic conditions
B. Completing the work as quickly as possible even if traffic control is inadequate
C. Coordinating production, worker safety, public safety, equipment, materials, and traffic control
D. Allowing individual workers to determine the safest traffic-control arrangement after arriving
Correct Answer: C
Rationale: Effective highway supervision requires balancing productivity with safety and operational
requirements. A sound work plan considers the work activity, hazards, personnel, equipment, materials,
traffic exposure, weather, and required traffic-control measures before work begins.
5. During a roadway repair operation, a supervisor observes that warning devices have been placed
too close to the work area, creating inadequate advance warning for approaching motorists. What is
the supervisor's BEST initial action?
A. Continue work and adjust devices later
B. Stop work and reposition warning devices to provide adequate advance warning
C. Ignore the issue since workers are present
D. Reduce crew size to compensate
Correct Answer: B
Rationale: Adequate advance warning is critical to work-zone safety. Warning devices must be
positioned to give motorists sufficient time to react and adjust their driving behavior. Work must be
stopped until proper protection is established.
6. What is the primary purpose of traffic control devices in a work zone?
A. To decorate the work area
B. To provide adequate warning and guidance to motorists and protect workers
C. To slow down traffic for no reason
D. To increase project costs
Correct Answer: B
Rationale: Traffic control devices are used to warn motorists of upcoming work zones, guide them safely
through or around the work area, and protect workers from traffic hazards.
, 7. A crew is assigned to repair a pothole on a heavily traveled roadway. Before work begins, traffic is
moving at high speed immediately adjacent to the work area. What is the most important supervisory
consideration?
A. Completing the repair as quickly as possible regardless of traffic controls
B. Establishing appropriate work-zone protection before exposing workers to traffic
C. Parking all equipment directly in the travel lane
D. Allowing workers to determine their own traffic-control procedures
Correct Answer: B
Rationale: Worker and public safety must be established before maintenance personnel enter an active
roadway. Proper work-zone protection separates workers from moving traffic and provides motorists
with adequate warning and guidance.
8. A supervisor observes that a crew is not wearing required high-visibility apparel during daytime
operations. What should the supervisor do?
A. Allow work to continue
B. Stop work and require proper PPE before continuing
C. Provide the apparel at the end of the shift
D. Ignore the issue if it is daytime
Correct Answer: B
Rationale: High-visibility apparel is a mandatory safety requirement for workers in roadway work zones,
regardless of time of day. The supervisor must ensure compliance before work continues.
9. During a highway maintenance operation on a busy urban roadway, a supervisor notices that
workers have entered the work area without a clearly established separation from moving traffic.
What should the supervisor do first?
A. Allow the work to continue because the workers are wearing high-visibility clothing
B. Stop work and establish proper traffic control and separation
C. Continue work but tell workers to be more careful
D. Document the issue and address it at the end of the shift
Correct Answer: B
Rationale: Work-zone safety must be established before employees are exposed to roadway traffic
hazards. A supervisor must ensure appropriate traffic-control measures are in place and that employees
follow established procedures.
10. What is the primary objective of a work zone?
A. Address an immediate roadway hazard while protecting workers and motorists
B. Maximize productivity
