Final answer:
Roadside emergency warning devices to mark a stopped vehicle carrying explosives are subject to strict regulations. Reflective triangles and flares are commonly used for civilian transportation, while military vehicles have their specific protocols. Compliance with company policies and regulatory guidelines is essential.
Step-by-step explanation:
The type of roadside emergency warning devices used to mark a stopped vehicle carrying explosives are highly regulated. Typically, for commercial transportation of hazardous materials, safety devices such as reflective triangles, flares, and other warning signals regulated by the Department of Transportation or applicable local laws are used. However, when it comes to transporting explosives, great care must be taken due to the potential for ignition. It is crucial to follow specific company policies and regulatory guidelines which may dictate the type of warning device used.
In the case of a military vehicle, which may be implied by the reference to soldiers using metal detectors for explosives, the protocol may differ, as the military uses specific procedures that are designed to ensure the safety of the personnel and security of the cargo. Vehicles carrying explosives should be marked and identified according to specific military regulations and standard operating procedures, which could involve the use of specific electronic signals, flags, or other devices not typically used by civilian vehicles.