What is the primary focus when designating primary and alternate explosive movement routes?

The primary focus when designating primary and alternate explosive movement routes is centered on safety. Choosing the safest possible routes minimizes risks associated with potential accidents or incidents during transportation of explosives. This includes factors such as avoiding densely populated areas, assessing road conditions, and ensuring that the route can facilitate emergency responses if necessary.

While factors like the directness of a route or traffic levels can be important, they must be weighed against safety considerations. Opting for a route that is deemed the safest helps to prioritize the well-being of both the personnel involved in the transportation and the general public. Therefore, safety serves as the guiding principle in route selection for moving explosives, ensuring compliance with regulations and procedures in hazardous materials handling.