MOT Incident Management & Response 4

Question 1

A lane spill of diesel fuel has occurred at a work zone. Who has primary authority to determine when the roadway is safe to reopen?

Accepted Answer

The hazmat incident commander (typically fire department)

Answer

The hazmat incident commander, usually from the fire department, determines when a spill is contained and decontaminated enough to safely reopen the road.

Question 2

When communicating with a Traffic Management Center (TMC) during a work zone incident, the field supervisor should report:

Accepted Answer

Location, nature of incident, lanes blocked, and estimated clearance time

Answer

The TMC needs location, incident type, blocked lanes, and clearance estimates to activate dynamic message signs and adjust signal timing.

Question 3

Which of the following is a key benefit of pre-planned incident response agreements between contractors and emergency responders?

Accepted Answer

They speed response by defining roles and resource locations in advance

Answer

Pre-planned agreements establish clear roles, staging areas, and communication channels so all parties can respond without delay when an incident occurs.

Question 4

What is the purpose of 'shadow vehicles' or 'truck-mounted attenuators (TMA)' positioned upstream of an incident scene?

Accepted Answer

To absorb impact from errant vehicles and protect workers and responders

Answer

TMAs are crash cushions mounted on trucks that absorb and redirect errant vehicle impacts, protecting workers behind them.

Question 5

After an incident within a work zone is cleared, what should the MOT supervisor do before allowing construction traffic to resume?

Accepted Answer

Verify TTC devices are restored to the approved traffic control plan

Answer

All temporary traffic control devices modified for incident response must be reinstated to the approved plan before normal work zone operations resume.

(MOT) Maintenance of Traffic Certification Practice Test

(MOT) Maintenance of Traffic Certification Practice Test

MOT Incident Management & Response 4