Safety and Risk Management Flashcards

A shadow vehicle equipped with an attenuator is used in a moving work zone primarily to:

Answer: Absorb the impact of errant vehicles and protect workers

A truck-mounted attenuator (TMA) on a shadow vehicle is designed to absorb energy from vehicle impacts, protecting workers ahead of it.

Which of the following best describes the 'Termination Area' of a temporary traffic control zone?

Answer: The section where lane closures end and normal traffic flow resumes

The termination area is the downstream end of the work zone where the traffic lanes return to normal configuration.

What action should a flagger take if a signal from a two-way radio is lost mid-operation?

Answer: Stop all traffic and hold it until communication is re-established or alternate communication is arranged

Loss of communication is a safety emergency; stopping traffic prevents potential head-on collisions in a one-lane zone until contact is restored.

On a high-speed roadway (55+ mph), which class of high-visibility vest does California require for flaggers?

Answer: Class 3

Class 3 provides the highest level of visibility and is required when flaggers are exposed to traffic traveling 55 mph or greater.

What is the correct technique for holding a STOP/SLOW paddle?

Answer: Hold the paddle in one hand with the face perpendicular to approaching traffic so drivers can clearly read it

The paddle should be held steady and perpendicular to approaching traffic so the message is fully legible to drivers.

When two flaggers are working opposite ends of a one-lane section, which protocol is essential to prevent collisions?

Answer: Flaggers use a call-and-confirm protocol so only one direction moves at a time

A call-and-confirm radio protocol ensures only one direction of traffic is moving through the single-lane section at any given time.

Heat illness is a serious risk for flaggers working outdoors. Which symptom indicates the MOST severe stage requiring immediate emergency response?

Answer: Confusion, hot/dry skin, and loss of consciousness

Confusion, hot dry skin, and loss of consciousness are signs of heat stroke, a life-threatening emergency requiring immediate 911 contact and cooling measures.